Distributor module and measuring system formed therewith

Abstract

A distributor module serves for distributing electrical power to at least two connected measuring devices and for forwarding to at least one superordinated electronic data processing unit information concerning at least one physical, measured variable transmitted from the connected at least two measuring devices. For this, the distributor module comprises a module housing as well as an electronics module placed within the module housing. Additionally present in the distributor module are two or more connection systems, one for each of the measuring devices delivering measured data, with, in each case, a transformer coil placed within the module housing and connected to the electronics module for forming a data as well as electrical energy transmitting, inductively coupling interface, as well as at least one connection system for the at least one data processing unit, wherein each of the transformer coils is placed, in each case, within a plug connector element composed at least partially of plastic or other synthetic material and serving for forming a plug connector coupling. Moreover, it is provided that the distributor module is applied in a measuring system serving for measuring at least one physical and/or at least one chemical, measured variable.

1 - 56 . (canceled) 
     
     
         57 . A distributor module for distributing electrical power to at least two connected measuring devices and for forwarding to at least one superordinated electronic data processing unit, especially one processing data corresponding to the measured variable and/or controlling the distributor module, information concerning at least one physical, measured variable, especially one serving as process parameter of an industrial and/or automated process to be monitored, transmitted from the at least two connected measuring devices, which distributor module comprises:
 a module housing, especially one embodied water spray- and/or explosion- and/or pressure resistantly;   an electronics module placed within the module housing, especially an electronics module embodied to be explosion protected;   a first connection system for a first measuring device delivering measured data, especially digitized data;   a second connection system for a second measuring device delivering measured data, especially digitized data; as well as   at least a third connection system for the at least one data processing unit, wherein:   said first connection system and at least said second connection system, especially each of said three connection systems, have, in each case, a transformer coil placed within said module housing and connected to said electronics module for forming an inductively coupling interface transmitting data, especially digital, data, especially according to the Universal Asynchronous Receiver Transmitter protocol, as well as electrical energy , especially an interface transmitting data and energy simultaneously, especially an interface transmitting exclusively inductively, and   each of said at least two transformer coils is, in each case, placed within a plug connector element (especially a plug connector element formed as an integral component of said module housing) serving to form a plug connector coupling, especially a releasable plug connector coupling, and composed, at least partially, especially predominantly or exclusively, of a plastic or other synthetic material, especially a plastic or other synthetic material which is at least partially electrically non-conductive.   
     
     
         58 . The distributor module as claimed in  claim 57 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system.   
     
     
         59 . The distributor module as claimed in  claim 58 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system.   
     
     
         60 . The distributor module as claimed in  claim 57 , wherein:
 said electronics module includes at least a first demodulator for separating, especially by means of amplitude demodulation and/or by means of frequency demodulation, information concerning at least one physical, measured variable and/or the distributor module from an electrical carrier signal transmitted via inductively coupling interface; and   for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, an input of the first demodulator is connected, at least at times, especially predominantly or permanently, with one of said transformer coils, especially exactly one of the transformer coils.   
     
     
         61 . The distributor module as claimed in  claim 60 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system; and   an output of said first demodulator is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         62 . The distributor module as claimed in  claim 61 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system; and   an output of said first demodulator is connected via said selective switching circuit at times with an input of said control unit.   
     
     
         63 . The distributor module as claimed in  claim 60 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system; and   the input of said first demodulator is connected via said selective switching circuit at times with one of said transformer coils.   
     
     
         64 . The distributor module as claimed in  claim 60 , wherein:
 said electronics module includes at least a second demodulator for separating information concerning at least one physical, measured variable and/or the distributor module from an electrical carrier signal transmitted via inductively coupling interface; and   for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, an input of said second demodulator is connected, at least at times, especially predominantly or permanently, with one of said transformer coils, especially exactly one of said transformer coils, especially with said transformer coil of said third connection system.   
     
     
         65 . The distributor module as claimed in  claim 64 , wherein:
 an output of said second demodulator is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         66 . The distributor module as claimed in  claim 65 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system; and   an output of said second demodulator is connected via said selective switching circuit at times with an input of said control unit.   
     
     
         67 . The distributor module as claimed in  claim 64 , wherein:
 said electronics module includes at least a third demodulator for separating information concerning at least one physical, measured variable and/or the distributor module from an electrical carrier signal transmitted via an inductively coupling interface.   
     
     
         68 . The distributor module as claimed in  claim 67 , wherein:
 for forming a data as well as electrical energy transmitting, inductively coupling, first interface, especially a simultaneously transmitting, inductively coupling, first interface, an input of said first demodulator is connected, at least at times, especially permanently, with said transformer coil of said first connection system;   for forming a data as well as electrical energy transmitting, inductively coupling second interface, especially a simultaneously transmitting, inductively coupling, second interface, an input of said second demodulator is connected, at least at times, especially permanently, with said transformer coil of said second connection system; and   for forming a data as well as electrical energy transmitting, inductively coupling third interface, especially a simultaneously transmitting, inductively coupling, third interface, an input of said third demodulator is connected, at least at times, especially permanently, with said transformer coil of said third connection system.   
     
     
         69 . The distributor module as claimed in  claim 67 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system; and   an output of said third demodulator is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         70 . The distributor module as claimed in  claim 57 , wherein:
 said electronics module includes at least a first modulator for modulating, especially by means of amplitude modulation and/or by means of frequency modulation, information concerning the at least one physical, measured variable and/or measuring devices onto an electrical carrier signal transmittable via inductively coupling interface; and   for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, an output of said first modulator is connected, at least at times, especially predominantly or permanently, with one of said transformer coils, especially exactly one of said transformer coils.   
     
     
         71 . The distributor module as claimed in  claim 70 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system; and   an input of said first modulator is coupled, at least at times, especially permanently, to an output of said control unit.   
     
     
         72 . The distributor module as claimed in  claim 71 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system; and   an input of said first modulator is connected via said selective switching circuit at times with an output of said control unit.   
     
     
         73 . The distributor module as claimed in  claim 70 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system; and   the output of said first modulator is connected via said selective switching circuit at times with one of said transformer coils.   
     
     
         74 . The distributor module as claimed in  claim 73 , wherein:
 said electronics module includes at least a first demodulator for separating, especially by means of amplitude demodulation and/or by means of frequency demodulation, information concerning at least one physical, measured variable and/or the distributor module from an electrical carrier signal transmitted via inductively coupling interface; and   for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, an input of the first demodulator is connected, at least at times, especially predominantly or permanently, with one of said transformer coils, especially exactly one of the transformer coils; and   the input of said first demodulator is connected by means of said selection switching network at times with said transformer coil, especially simultaneously with the output of said first modulator.   
     
     
         75 . The distributor module as claimed in  claim 74 , wherein:
 the input of said first demodulator is connected, offset in time to the output of said first modulator, with said transformer coil.   
     
     
         76 . The distributor module as claimed in  claim 70 , wherein:
 said electronics module includes at least a second modulator for modulating information concerning the at least one physical, measured variable and/or measuring devices onto an electrical carrier signal transmittable via inductively coupling interface; and   for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, an output of said second modulator is connected, at least at times, with one of said transformer coils.   
     
     
         77 . The distributor module as claimed in  claim 76 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system; and   an input of said second modulator is coupled, at least at times, especially permanently, to an output of said control unit.   
     
     
         78 . The distributor module as claimed in  claim 77 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system; and   an input of said second modulator is connected via said selective switching circuit at times with an output of said control unit.   
     
     
         79 . The distributor module as claimed in  claim 76 , wherein:
 said electronics module includes least a third modulator for modulating information concerning at least one physical, measured variable and/or the distributor module onto an electrical carrier signal transmittable via an inductively coupling interface.   
     
     
         80 . The distributor module as claimed in  claim 79 , wherein:
 for forming a data as well as electrical energy transmitting, inductively coupling, first interface, especially a simultaneously transmitting, inductively coupling, first interface, an output of said first modulator is connected, at least at times, especially permanently, with said transformer coil of said first connection system;   for forming a data as well as electrical energy transmitting, inductively coupling second interface, especially a simultaneously transmitting, inductively coupling, second interface, an output of said second modulator is connected, at least at times, especially permanently, with said transformer coil of said second connection system; and   for forming a data as well as electrical energy transmitting, inductively coupling third interface, especially a simultaneously transmitting, inductively coupling, third interface, an output of said third modulator is connected, at least at times, especially permanently, with said transformer coil of said third connection system.   
     
     
         81 . The distributor module as claimed in  claim 67 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system; and   an input of said third modulator is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         82 . The distributor module as claimed in  claim 57 , wherein:
 said electronics module includes at least a first modem, especially a first modem operated in semi-duplex or full-duplex mode;   for separating, especially by means of amplitude demodulation and/or by means of frequency demodulation, information concerning the at least one physical, measured variable from an electrical carrier signal transmitted via inductively coupling interface;   for modulating, especially by means of amplitude modulation and/or by means of frequency modulation, information concerning the at least one physical, measured variable and/or measuring devices onto an electrical carrier signa to be transferred via an inductively coupling interface, and for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, a first input of the first modem is connected, at least at times, with one of said transformer coils and a first output of the first modem is connected, at least at times, with said transformer coil.   
     
     
         83 . The distributor module as claimed in  claim 82 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system;   a second input of the first modem is coupled, at least at times, especially permanently, to an output of said control unit; and/or a second output of the first modem is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         84 . The distributor module as claimed in  claim 83 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system;   a second input of the first modem is connected via said selective switching circuit at times with an output of said control unit; and/or a second output of the first modem is connected via said selective switching circuit at times with an input of said control unit.   
     
     
         85 . A distributor module as claimed in  claim 82 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system;   the first output of the first modem is connected via said selective switching circuit at times with one of said transformer coils; and/or   the first input of the first modem is connected via said selective switching circuit at times with one of said transformer coils.   
     
     
         86 . The distributor module as claimed in  claim 82 , wherein:
 said electronics module includes at least a second modem for:   separating, especially by means of amplitude demodulation and/or by means of frequency demodulation, information concerning the at least one physical, measured variable from an electrical carrier signal transmitted via inductively coupling interface;   modulating, especially by means of amplitude modulation and/or by means of frequency modulation, information concerning the at least one physical, measured variable and/or measuring devices onto an electrical carrier signal to be transferred via an inductively coupling interface; and   forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, a first input of the second modem is connected, at least at times, with one of said transformer coils and a first output of the second modem is connected, at least at times, with said transformer coil.   
     
     
         87 . The distributor module as claimed in  claim 86 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system;   a second input of the second modem is coupled, at least at times, especially permanently, to an output of said control unit; and/or   a second output of the second modem is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         88 . The distributor module as claimed in  claim 87 , wherein:
 said electronics module includes a selective switching circuit, especially one controlled by said control unit and/or integrated into such, for selectively connecting said control unit to at least one of said transformer coils and/or for selectively connecting said third connection system to at least one of said transformer coils of said first, or second connection system;   a second input of the second modem is connected via said selective switching circuit at times with an output of said control unit; and/or   a second output of the second modem is connected via said selective switching circuit at times with an input of said control unit.   
     
     
         89 . The distributor module as claimed in  claim 86 , wherein:
 said electronics module includes at least a third modem for:   separating, especially by means of amplitude demodulation and/or by means of frequency demodulation, information concerning the at least one physical, measured variable from an electrical carrier signal transmitted via an inductively coupling interface; and   modulating, especially by means of amplitude modulation and/or by means of frequency modulation, information concerning the at least one physical, measured variable and/or measuring devices onto an electrical carrier signal to be transferred via inductively coupling interface; and   for forming a data as well as electrical energy transmitting, inductively coupling interface, especially a simultaneously transmitting, inductively coupling interface, a first input of the third modem, at least at times, with one of said transformer coils is connected and a first output of the third modem is connected, at least at times, with said transformer coil.   
     
     
         90 . The distributor module as claimed in  claim 89 , wherein:
 said electronics module includes a control unit, especially one formed by means of a microprocessor and/or a modifiable logic chip and/or an application specific integrated circuit, for controlling at least said first connection system and said second connection system and/or for processing control commands received via said third connection system;   a second input of the third modem is coupled, at least at times, especially permanently, to an output of said control unit; and/or   a second output of the third modem is coupled, at least at times, especially permanently, to an input of said control unit.   
     
     
         91 . The distributor module as claimed in  claim 57 , wherein:
 said electronics module includes an internal supply circuit coupled, at least at times, especially permanently, to at least one of said transformer coils, said internal supply circuit having a capacitive and/or inductive and/or electrochemical, energy storer; and   said internal supply circuit electrical energy provides transmittable via an inductively coupling interface.   
     
     
         92 . The distributor module as claimed in  claim 91 , wherein:
 said internal supply circuit provides electrical energy transmittable via an inductively coupling interface by means of an alternating electrical current, especially a sinusoidal or rectangular, electrical current, driven by an alternating voltage, especially an impressed alternating voltage and or an alternating voltage held at a predetermined voltage level.   
     
     
         93 . The distributor module as claimed in  claim 92 , wherein:
 the alternating voltage serves for forming a carrier signal for information transmittable via an inductively coupling interface; and/or   the alternating electrical current serves for forming a carrier signal for information transmittable via said inductively coupling interface.   
     
     
         94 . The distributor module as claimed in  claim 91 , wherein:
 said internal supply circuit is connected during operation, simultaneously, especially permanently, to transformer coils of at least two connection systems; and/or   said internal supply circuit includes at least one rectifier, which with a primary side voltage connection for alternating voltage is electrically connected, at least at times, to at least one of said transformer coils; and/or   said internal supply circuit includes at least one inverter, which with a secondary side voltage connection for alternating voltage is connected, at least at times, to at least one of said transformer coils electrically; and/or   said internal supply circuit includes at least one electrical current converter, which is electrically connected with a voltage connection for alternating voltage, at least at times, to at least one of said transformer coils; and/or   said internal supply circuit includes at least one frequency converter, which is electrically connected with a first voltage connection for alternating voltage, at least at times, to at least one of said transformer coils, especially the transformer coil of the first connection system, and which is electrically connected with a second voltage connection for alternating voltage, at least at times, to at least one of said transformer coils, especially the transformer coil of the third connection system.   
     
     
         95 . The distributor module as claimed in  claim 91 , wherein:
 said internal supply circuit includes at least one frequency converter, which is electrically connected with a primary side first voltage connection for alternating voltage, at least at times, to the transformer coil of the third connection system and with a secondary side second voltage connection for alternating voltage, at least at times, especially in the case of first voltage connection for alternating voltage connected to the transformer coil of the third connection system, to the transformer coil of the first connection system, and which delivers, during operation, by means of a primary side alternating voltage applied to its first voltage connection, a secondary side alternating voltage of predeterminable frequency and/or predeterminable amplitude lying on its second voltage connection, especially in such a manner, that the frequency of the secondary side alternating voltage equals a frequency of the primary side alternating voltage and/or the amplitude of the secondary side alternating voltage equals an amplitude of the primary side alternating voltage.   
     
     
         96 . The distributor module as claimed in  claim 91 , wherein:
 said supply circuit includes current limiters and/or voltage limiters for limiting maximum electrical power drawable from its energy storers.   
     
     
         97 . The distributor module as claimed in  claim 57 , further comprising:
 at least one connection system for an external service module, especially a service- and/or diagnostic unit, especially a connection system constructed equally to the first connection system; and/or at least one connection system for an external data memory, especially an EEPROM and/or a hard disk, especially a connection system constructed equally to the first connection system, for storing information concerning measured variables and/or the distributor module, or thereto connected measuring devices; and/or   other connection systems, especially connection systems constructed equally to the first connection system, for, in each case, a measuring device delivering measured data.   
     
     
         98 . The distributor module as claimed in  claim 57 , wherein:
 said module housing is embodied explosion protectedly and/or pressure resistantly, especially in a manner meeting requirements of ignition protection type “Pressure-Resistant Encapsulation” (Ex-d); and/or   said electronics module is embodied explosion protectedly, especially in a manner meeting requirements of ignition protection type “Intrinsic Safety” (Ex-i) and/or ignition protection type “Increased safety” (Ex-e).   
     
     
         99 . The distributor module as claimed in  claim 58 , further comprising:
 a display system communicating with said control unit, especially a display system formed by means of a plurality of LEDs and/or by means of a display, for visualizing data transmitted via a distributor module and/or for visualizing status information concerning the distributor module, especially status information such as instantaneous terminal assignments on connection systems of the distributor module and/or data streams flowing via connection system; and/or   a servicing system communicating with said control unit, especially a servicing system formed by means of individual keys and/or by means of touch display, for programming the control unit and/or for selective turning on, or off, of connection systems of the distributor module; and/or   a radio system communicating with said control unit for wireless sending and/or receiving of configuration data for the distributor module.   
     
     
         100 . The distributor module as claimed in  claim 58 , wherein:
 said electronics module includes non-permanent data memory communicating with the control unit and/or integrated therein, especially persistent, data memory, especially an EEPROM and/or a hard disk, for storage of information concerning measured variables and/or the distributor module, or measuring devices connected thereto, especially:   for storage of measured values generated by means of a measuring device connected to the distributor module and, in given cases, also marked by means of a time stamp representing a point in time of the respective generating, and/or   for storage of data identifying a connected measuring device for the distributor module; and/or   for storage of data authenticating a connected measuring device relative to the distributor module, especially sensor type identification and/or calibration data specifying the sensor module and/or certificates filled out for the measuring device and/or operating approval granted for the measuring device and/or a code enabling activating of the measuring device.   
     
     
         101 . The distributor module as claimed in  claim 57 , wherein:
 said electronics module includes at least one non-volatile, data memory, especially a permanent, data memory, especially:   for storage of data identifying the distributor module for a connected measuring device and/or authenticating the distributor module relative to the measuring device, and/or   for storage of data serving for parametering a connected measuring device, and/or   for storage of certificates filled out for the distributor module and/or operating approval granted for the distributor module, and/or   for storage of a code enabling activating of a connected measuring device.   
     
     
         102 . A measuring system for the measuring at least one physical and/or at least one chemical, measured variable, which measuring system comprises a distributor module, comprising:
 a distributor module for distributing electrical power to at least two connected measuring devices and for forwarding to at least one superordinated electronic data processing unit, especially one processing data corresponding to the measured variable and/or controlling the distributor module, information concerning at least one physical, measured variable, especially one serving as process parameter of an industrial and/or automated process to be monitored, transmitted from the at least two connected measuring devices, which distributor module comprises:   a module housing, especially one embodied water spray- and/or explosion- and/or pressure resistantly;   an electronics module placed within the module housing, especially an electronics module embodied to be explosion protected;   a first connection system for a first measuring device delivering measured data, especially digitized data;   a second connection system for .a second measuring device delivering measured data, especially digitized data; as well as   at least a third connection system for the at least one data processing unit, wherein:   said first connection system and at least said second connection system, especially each of said three connection systems, have, in each case, a transformer coil placed within said module housing and connected to said electronics module for forming an inductively coupling interface transmitting data, especially digital, data, especially according to the Universal Asynchronous Receiver Transmitter protocol, as well as electrical energy , especially an interface transmitting data and energy simultaneously, especially an interface transmitting exclusively inductively, and   each of said at least two transformer coils is, in each case, placed within a plug connector element (especially a plug connector element formed as an integral component of said module housing) serving to form a plug connector coupling, especially a releasable plug connector coupling, and composed, at least partially, especially predominantly or exclusively, of a plastic or other synthetic material, especially a plastic or other synthetic material which is at least partially electrically non-conductive.   
     
     
         103 . The measuring system as claimed in  claim 102 , further comprising:
 a first measuring device delivering, especially by means of an alternating electrical current modulated as regards amplitude and/or frequency and/or by means of an alternating voltage modulated as regards amplitude and/or frequency, at least at times, information, especially in the form of a telegram according to a Universal Asynchronous Receiver Transmitter protocol (UART), concerning at least one physical, measured variable (x 1 ) of a first type and having a connection system for the distributor module or for a connecting cable serving for connecting of said first measuring device and distributor module, especially a cable corresponding to one of the standard interfaces EIA-485, EIA-232 or EIA-422;   at least a second measuring device delivering, especially by means of an alternating electrical current modulated as regards amplitude and/or frequency and/or by means of an alternating voltage modulated as regards amplitude and/or frequency, at least at times, information, especially in the form of a telegram according to a Universal Asynchronous Receiver Transmitter protocol (UART), concerning the measured variable (x 1 ) of first type and/or a physical, measured variable (x 2 ) of second type and having a connection system for the distributor module or for a connecting cable serving for connecting of measuring device and distributor module, especially a cable corresponding to one of the standard interfaces EIA-485, EIA-232 or EIA-422; as well as   an electronic data processing unit, especially an electronic data processing unit remote from the distributor module and/or connected to a fieldbus, wherein:   said electronic data processing unit is coupled electrically, with interpositioning of the distributor module, at least at times, with said first measuring device and/or with said second measuring device.   
     
     
         104 . The measuring system as claimed in  claim 103 , wherein:
 at least one of said measuring devices, especially each of the two measuring devices, is supplied at least partially by the distributor module with electrical energy; and/or   at least one, especially each, of said at least two measuring devices draws therein, in each case, converted electrical power at least partially from the distributor module via the connection system of the distributor module connected to said measuring device; and/or   said first measuring device is connected to the distributor module via the first connection system, especially with an interposed connecting cable; and/or   said second measuring device is connected to the distributor module via the second connection system, especially with an interposed connecting cable.   
     
     
         105 . The measuring system as claimed in  claim 103 , wherein:
 said connection system of at least one, especially each, of said at least two measuring devices, includes, in each case, a transformer coil for forming an interface, which serves for transmitting, especially simultaneously, data, especially by means of the Universal Asynchronous Receiver Transmitter protocol (UART) or ETHERNET, as well as electrical energy, by inductive coupling, especially exclusively by inductive coupling, especially while also holding said at least one measuring device galvanically isolated from the distributor module.   
     
     
         106 . The measuring system as claimed in  claim 105 , wherein:
 the transformer coil of at least one, especially each, of said at least two measuring devices is placed within a plug connector element made at least partially, especially predominantly or exclusively, of a plastic or other synthetic material, especially an electrically non-conductive material, for forming a plug connector coupling, especially a releasable plug connector coupling, wherein the plug connector element is embodied complementarily to at least one of the plug connector elements of the distributor module; and/or   said transformer coil of at least one, especially each, of said at least two measuring devices forms, together with the, in each case, corresponding transformer coil of the distributor module connection system connected to the particular measuring device, a transformer, especially a transformer implementing the single electrical connection between said measuring device and the distributor module.   
     
     
         107 . The measuring system as claimed in  claim 103 , wherein the first measuring device is connected to the first connection system to form a first interface, which serves for transmitting, especially simultaneously, data, especially by means of the Universal Asynchronous Receiver Transmitter protocol (UART), as well as electrical energy, by inductive coupling, especially exclusively by inductive coupling, especially while also holding the first measuring device galvanically isolated from the distributor module, especially also while forming a releasable plug connector coupling. 
     
     
         108 . The measuring system as claimed in  claim 107 , wherein the second measuring device is connected to the second connection system to form a second interface, which serves for transmitting, especially simultaneously, data, especially by means of the Universal Asynchronous Receiver Transmitter protocol (DART), as well as electrical energy, by inductive coupling, especially exclusively by inductive coupling, especially while also holding the second measuring device galvanically isolated from the distributor module, especially also while forming a releasable plug connector coupling. 
     
     
         109 . The measuring system as claimed in  claim 103 , wherein:
 at least one of said measuring devices is a pH measuring device, which recurringly registers a pH value of a liquid; and/or   said at least one of the measuring devices is a conductivity measuring device, which recurringly registers an electrical conductivity of a liquid; and/or   said at least one of the measuring devices is a pressure measuring device, which recurringly registers a pressure of a fluid.   
     
     
         110 . The measuring system as claimed in  claim 103 , wherein:
 at least one of said measuring devices comprises a potentiometric sensor, an amperometric sensor, a photometric sensor, a spectrometric sensor, a temperature sensor, a pressure sensor, a flow sensor or a conductivity sensor.   
     
     
         111 . The measuring system as claimed in  claim 103 , further comprising:
 a fieldbus, especially a FOUNDATION FIELDBUS or PROFIBUS fieldbus, on which said electronic data processing unit, at least at times, transmits a measured value and/or a current operating state of the distributor module and/or a parameter value signaling one of said measuring devices connected thereto.   
     
     
         112 . The measuring system as claimed in  claim 103 , wherein:
 said distributor module is supplied with electrical energy at least partially by said electronic data processing unit; and/or   said distributor module draws therein converted electrical power at least partially from said electronic data processing unit; and/or   said electronic data processing unit is connected to said distributor module via the third connection system, especially with an interposed connecting cable.