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Rohde & Schwarz TS-PIO2, User Manual

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Rohde & Schwarz TS-PIO2 User Manual Download Page 28

Layout

R&S

®

TS-PIO2

12

User Manual 1506.7208.12 ─ 06

4.2 Display elements of the module R&S TS-PIO2

Figure 4-2: Arrangement of the LEDs on the module R&S TS-PIO2

On the front side of the module R&S TS-PIO2 there are three LEDs which show the
current status of the module. The LEDs have the following meaning:

Table 4-2: Display elements on the module R&S TS-PIO2

LED

Description

red

Fault condition:

Lights up when a fault is detected on the R&S TSPIO2 module during the power-on test
after the supply voltage is switched on. This means that there is a hardware problem on
the module. (also see 

Chapter 8, "Self-Test"

, 

on page 41)

yellow

Communication:

Lights up when data is exchanged across the interface.

green

Supply voltage OK:

Lights up when all necessary supply voltages are present (incl. the R&S TS-PDC vol-
tages).

4.3 Mechanical layout of R&S TS-PDC

The rear I/O Module R&S TS-PDC is designed for rear installation in the R&S Com-
pactTSVP/R&S PowerTSVP. The height of the module's circuit board is 3 HE (134
mm). The module is fastened in place by two fastening screws on the front baffle plug
connector X20 connects module R&S TS-PDC with the extension backplane in the
R&S CompactTSVP/ R&S PowerTSVP. Module R&S TS-PDC must always be used
with the correct Rear-I/O slot for the main module (for example module R&S TS-PIO2).

 

 

Mechanical layout of R&S TS-PDC

Summary of Contents for TS-PIO2

Page 1: ...R S TS PIO2 Analog Digital IO Module 2 User Manual User Manual 1506 7208 12 06 6Ö8 Test Measurement ...

Page 2: ... 0 Fax 49 89 41 29 12 164 Email info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of the owners The following abbreviations are used throughout this manual R S TS PIO2 is abbreviated as R S TS PIO2 ...

Page 3: ...se of the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following safety instructions Using the product requires technical skills and in some cases a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained ...

Page 4: ...ration item 7 Signal words and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers Indicates a hazardous situation which if not avoided will result in death or serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided ...

Page 5: ...safety is not observed either at all or to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal voltage setting on the product matches the nominal voltage of the mains supply network If a different voltage is to be set the power fuse of the product may have to be changed accordingly 2 In the ca...

Page 6: ...st be fuse protected in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 14 Use suitable overvoltage protection to ensure that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person operating the product will be exposed to the danger of an electric shock 15 Any object that ...

Page 7: ...e masks and protective clothing must be worn 7 Laser products are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of their radiation and due to their extremely concentrated electromagnetic power If a laser product e g a CD DVD drive is integrated into a Rohde Schwarz product absolutely no other settings or functions m...

Page 8: ...an permitted 5 If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 6 Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the matching Rohde Schwarz type see pa...

Page 9: ... substances or fuels can cause health problems and lead to environmental damage For additional information about environmental protection visit the Rohde Schwarz website Instrucciones de seguridad elementales Es imprescindible leer y cumplir las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde Schwarz consiste en tener nuestros productos siempre al día...

Page 10: ...e el uso del producto Deberán tenerse en cuenta todas las demás informaciones de seguridad como p ej las referentes a la protección de personas que encontrarán en el capítulo correspondiente de la documentación del producto y que también son de obligado cumplimiento En las presentes informaciones de seguridad se recogen todos los objetos que distribuye el grupo de empresas Rohde Schwarz bajo la de...

Page 11: ... producto se emplea de forma sinónima el término CUIDADO Las palabras de señal corresponden a la definición habitual para aplicaciones civiles en el área económica europea Pueden existir definiciones diferentes a esta definición en otras áreas económicas o en aplicaciones militares Por eso se deberá tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en combi...

Page 12: ... la tensión preseleccionada en el producto coincida con la de la red de alimentación eléctrica Si es necesario modificar el ajuste de tensión también se deberán cambiar en caso dado los fusibles correspondientes del producto 2 Los productos de la clase de protección I con alimentación móvil y enchufe individual solamente podrán enchufarse a tomas de corriente con contacto de seguridad y con conduc...

Page 13: ...r efectuadas por un electricista especializado 13 En el caso de dispositivos fijos que no estén provistos de fusibles interruptor automático ni otros mecanismos de seguridad similares el circuito de alimentación debe estar protegido de modo que todas las personas que puedan acceder al producto así como el producto mismo estén a salvo de posibles daños 14 Todo producto debe estar protegido contra s...

Page 14: ...presario operador tiene la obligación de evaluar y señalizar las áreas de trabajo en las que exista un riesgo elevado de exposición a radiaciones 6 Tenga en cuenta que en caso de incendio pueden desprenderse del producto sustancias tóxicas gases líquidos etc que pueden generar daños a la salud Por eso en caso de incendio deben usarse medidas adecuadas como p ej máscaras antigás e indumentaria de p...

Page 15: ...or ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y baterías deben mantenerse limpias y secas Limpiar las conexiones sucias con un paño seco y limpio 3 Las celdas o baterías no deben cortocircuitarse Es peligroso almacenar las celdas o baterías en estuches o cajones en cuyo interior puedan cortocircuitarse por contacto recíproco o por contacto con otros materiales con...

Page 16: ...ivos eléctricos usados no se deben desechar con los residuos domésticos sin clasificar sino que deben ser recogidos por separado Rohde Schwarz GmbH Co KG ha elaborado un concepto de eliminación de residuos y asume plenamente los deberes de recogida y eliminación para los fabricantes dentro de la UE Para desechar el producto de manera respetuosa con el medio ambiente diríjase a su servicio de atenc...

Page 17: ... exam ple according to the ISO9001 and ISO14001 management systems Environmental commitment Energy efficient products Continuous improvement in environmental sustainability ISO14001 certified environmental management system Cher client Vous avez choisi d acheter un produit Rohde Schwarz Vous disposez donc d un produit fabriqué d après les méthodes les plus avancées Le dévelop pement la fabrication...

Page 18: ...rument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde...

Page 19: ...og output Digital static output Digital dynamic output Arbitrary waveform Square wave All 16 input channels are wired to comparators and also to the input of an analog digital converter The limits of the comparators are adjustable This makes the following eval uations of a signal possible Voltage measurements against module ground Differential voltage measurements between two channels Digital eval...

Page 20: ...sampling rate during measurement and update rate for output 5 kHz Memory for 4 x 5000 values analog and digital measurement values digital bit pattern and arbitrary wave form output Access to analog bus Trigger options via PXI trigger bus Self test capability Soft Panel for interactive operation LabWindows CVI driver available 1 3 Features of the TS PDC module The Rear I O Module R S TS PDC is use...

Page 21: ... R S TS PIO2 are designed so that users can operate at voltages up to 125 V The requirements according to EN61010 1 for operation with hazardous live vol tages must be observed For additional details see Chapter 5 1 17 and the leaflet entitled Safety Instructions in the user manual for the R S CompactTSVP R S PowerTSVP production platform Safety instructions ...

Page 22: ...nual 1506 7208 12 06 2 View Figure 2 1 shows the Analog Digital IO Module R S TS PIO2 without the accompany ing Rear I O Module R S TS PDC The Rear I O Module R S TS PDC is shown in Figure 2 2 Figure 2 1 View of the R S TS PIO2 ...

Page 23: ...O Module R S TS PDC The Module R S TS PDC exists in 3 different models Grouted in a black housing version up to 1 8 1157 9804 02 obsolete Encapsulated in metal housing with cooling fins version 1 9 1157 9804 02 obso lete Without case version from 2 0 1157 9804 12 actual version ...

Page 24: ... the Analog Digital IO Mod ule R S TS PIO2 and the Rear I O Module R S TS PDC in the R S PowerTSVP Figure 3 2 shows the block diagram of the Analog Digital IO Modules R S TS PIO2 Figure 3 3 shows the block diagram of the Rear I O Module R S TS PDC Figure 3 1 Functional block diagram of R S TS PIO2 with R S TS PDC in the R S PowerTSVP ...

Page 25: ...Block Diagrams R S TS PIO2 9 User Manual 1506 7208 12 06 Figure 3 2 Block diagram Analog Digital IO Module R S TS PIO2 ...

Page 26: ...Block Diagrams R S TS PIO2 10 User Manual 1506 7208 12 06 Figure 3 3 Block diagram Rear I O Modul R S TS PDC ...

Page 27: ...10 is used to connect test objects The connector X30 con nects the module with the analog bus backplane in the R SCompactTSVP R S Pow erTSVP The connectors X20 X1 connect the module with the CompactPCI backplane PXI control backplane Figure 4 1 Arrangement of the connectors and LEDs on the module R S TS PIO2 Table 4 1 Connectors on the R S TS PIO2 Name Use X1 cPCI Connector X10 Front Connector X20...

Page 28: ... module also see Chapter 8 Self Test on page 41 yellow Communication Lights up when data is exchanged across the interface green Supply voltage OK Lights up when all necessary supply voltages are present incl the R S TS PDC vol tages 4 3 Mechanical layout of R S TS PDC The rear I O Module R S TS PDC is designed for rear installation in the R S Com pactTSVP R S PowerTSVP The height of the module s ...

Page 29: ...same slot code of the module R S TSPIO2 If it is not correctly plugged in e g cPCI PXI standard modules in the front area both modules may be destroyed Figure 4 3 Arrangement of the connector and LEDs on the module R S TS PDC Table 4 3 Connector of the module R S TS PDC Name Use X20 Extension rear I O Mechanical layout of R S TS PDC ...

Page 30: ...light up simultaneously 4 4 2 R S TS PDC from Version 2 0 1157 9804 12 The actual status of the module is signalized by 10 LEDs In the switched on state the green LED PWR indicates the power on state In fault free operation additionally the 8 green LEDs for each generated output voltage light up In the case of overload or over temperature the module shuts down by itself The error is signalized by ...

Page 31: ...nd corresponding groups Channel Group Analog bus access Note CH1 A ABa1 ABa2 CH2 A ABa1 ABa2 CH3 A ABa1 ABa2 CH4 A ABa1 ABa2 Extended channel CH5 B ABb1 ABb2 CH6 B ABb1 ABb2 CH7 B ABb1 ABb2 CH8 B ABb1 ABb2 Extended channel CH9 C ABc1 ABc2 CH10 C ABc1 ABc2 CH11 C ABc1 ABc2 CH12 C ABc1 ABc2 Extended channel CH13 D ABd1 ABd2 CH14 D ABd1 ABd2 CH15 D ABd1 ABd2 CH16 D ABd1 ABd2 Extended channel The outp...

Page 32: ...is a graphical representation showing the possible set tings for channel outputs in group A The output level depends on the contents of the level registers and the state of the pattern register With square wave output the corre sponding switch is switched cyclically between H and L while a 1 is entered in the pattern register for this channel Figure 5 1 Channel and group specific parameters of the...

Page 33: ...TS PIO2 17 User Manual 1506 7208 12 06 5 1 2 Application examples Figure 5 2 Independent use of input and output Figure 5 3 Switchable loads pull up and pull down of digital inputs Function description of the R S TS PIO2 module ...

Page 34: ... R S TS PIO2 18 User Manual 1506 7208 12 06 Figure 5 4 Test of Low Side outputs OC OD optocoupler switch etc Figure 5 5 Test of High Side outputs OC OD optocoupler switch etc Function description of the R S TS PIO2 module ...

Page 35: ... TS PIO2 19 User Manual 1506 7208 12 06 Figure 5 6 Extended channel for implementing current interfaces 0 5 mA 100 mA actuators Figure 5 7 Evaluation of current interfaces sensors Function description of the R S TS PIO2 module ...

Page 36: ... well as a bounce time you should wait until the signals are stable in a test program after wiring connections Function rspio2_IsDebounced can be used to determine whether the switching processes are complete rspio2_WaitForDebounce waits until all switching processes are complete and then returns control to the test program To avoid destroying the relay contacts the relays should only be switched ...

Page 37: ...DisconnectAll can be used to break all connections created with rspio2_Connect with a single function call rspio2_DisconnectAll has no effect on the configuration of outputs coupling relays or the ground relay The potential free module ground can also be connected to ground with the aid of the ground relay see Section 5 1 3 6 5 1 3 3 Switching inputs The inputs of each channel can be switched via ...

Page 38: ...put disconnected Output connected with front side connector CHx_OUT1 Output connected with corresponding input CHx_IN Please note that function rspio2_DisconnectAll does not affect this setting 5 1 3 5 Coupling relay The coupling relays connect the local analog bus LAB on the module with the analog bus in the R S CompactTSVP or R S PowerTSVP The function rspio2_ConfigureCoupling defines the status...

Page 39: ...module is configured groundfree 5 1 4 Using sense lines To compensate for voltage drops in the power supply to the external load the exten ded channels CH4 CH8 CH12 and CH16 of R S TS PIO2 can be set to external sensing Two additional lines directly to the test object are required for this purpose The measured difference in voltage on these lines is automatically controlled to the tar get voltage ...

Page 40: ... Voltages in Mode Digital Static and Digital Dynamic Pattern value Generated voltage Setting function of the voltage value 0 Output Digital Low Level rspio2_ConfigureGroup 1 Output High Level rspio2_ConfigureChannelLevels The pattern value for channels in Digital Static mode can be set with function rspio2_SetDigitalOutputState One parameter of this function serves as a mask so that the individual...

Page 41: ...um of 5000 values can be written to memory If fewer values have been stored in memory than sequence control needs to generate the last value is repeated Operating modes Waveform and Square Wave cannot be selected simultaneously within one group 5 1 10 Output of square wave signals For a channel to generate a square wave signal the Square Wave operating mode must first be activated with function rs...

Page 42: ... sible to implement a hysteresis for evaluating signals The limits can be set using func tion rspio2_ConfigureGroup This makes it possible to set individual limits for each group of channels The result of the signal evaluation of a channel is 1 if the input level is greater than value Input Digital High Threshold The result of the signal evaluation of a channel is 0 if the input level is less than...

Page 43: ...use of this parameter Sample Interval of function rspio2_ConfigureSampling is meaningful even if only one measurement value Sample Count 1 will be recorded Table 5 4 Effect of Sample Interval on bandwidth and accuracy Interval Input Bandwidth Accuracy 200 μs Sample Interval 1 ms High Lower 1 ms Sample Interval 10 0 ms Medium Higher 10 0 ms Sample Interval 1 s Low Best Recording of measurement valu...

Page 44: ...ol is in the Initiated state As soon as the trigger event has occurred the control system switches to the Sampling state After the set number of Sam ples has been read in or generated sequence control returns to its basic state Then the data that was read in can be retrieved with the corresponding functions rspio2_FetchAnalog rspio2_FetchAverage rspio2_FetchDigital These functions have a Timeout p...

Page 45: ...rocess is complete After the correction procedure the R S TS PIO2 module is in its reset state If the requirements for accuracy are not as great function rspio2_PerformFastAutoCorrection can be performed This process takes only about 2 seconds to complete The autocorrection must be performed after 24 hours of operating time or if the tem perature on the R S TS PIO2 module changes by 5 degrees Cels...

Page 46: ...xceeded at any time even as the sum of voltages and thus not as a results of alternating signals Figure 5 11 shows a typical permissible voltage configuration between analog busses and ground Figure 5 11 Permissible voltages on analog bus lines For reasons of fire prevention in conformity with EN 61010 1 we recommend limiting the current or output for DC sources to 150 VA 5 2 Description of functi...

Page 47: ...straightened When module is connected it must be guided with both hands and carefully pressed into the backplane connector Press in the module applying moderate pressure The upper catch pin of the R S TS PIO2 module must be guided into the right hole while the lower catch pin is guided into the left hole of the R S Com pactTSVP R S PowerTSVP housing The plug in module R S TS PIO2 is correctly loca...

Page 48: ...than 100300 is required Push in the plug in module using moderate pressure The rear I O module R S TS PDC must be inserted with extra caution making cer tain the connector is correctly guided into the socket opening in the backplane It must not be inserted at an angle or with incorrect alignment etc The short circuit board guides alone do not ensure absolutely reliable guiding Multiple adjacent R ...

Page 49: ... GTSL directory Bin Driver rspio2 hlp rspio2 chm GTSL directory Bin Help files rspio2 fp GTSL directory Bin LabWindows CVI Function Panel file function panels for CVI development interface rspio2 sub GTSL directory Bin LabWindows CVI attribute file This file is required by some function panels rspio2 lib GTSL directory Bin Import Library rspio2 h GTSL directory Include Header file for the driver T...

Page 50: ...06 7208 12 06 Figure 7 1 Soft Panel R S TS PIO2 The operation of the Soft Panel is described in the R S GTSL Software Description The signal paths connections of the R S TS PIO2 can also be determined by the Soft Panel Figure 7 3 Soft Panel ...

Page 51: ...Software R S TS PIO2 35 User Manual 1506 7208 12 06 Figure 7 2 Soft Panel R S TS PIO2 connections Soft Panel ...

Page 52: ...nector configures the channels and starts the output acquisition sequence Error handling is not considered in this sample in order to keep it easy to read The return status should be checked for VI_SUCCESS after each driver call include ansi_c h include rspio2 h define SAMPLE_COUNT 16 define SAMPLE_INTERVAL 1E 3 static ViChar s_pGrpName GRP_A GRP_B GRP_C GRP_D Sample program R S TS PIO2 ...

Page 53: ...late 0 RangeCheck 1 vi configure sample count and interval status rspio2_ConfigureSampling vi SAMPLE_COUNT SAMPLE_INTERVAL fill stimulus buffer for idx 0 idx SAMPLE_COUNT idx s_digiStim idx idx counter s_waveform idx idx 10 0 SAMPLE_COUNT ramp upload samples status rspio2_SetDigitalDynamicMemory vi SAMPLE_COUNT s_digiStim status rspio2_SetAnalogWaveformMemory vi SAMPLE_COUNT s_waveform configure v...

Page 54: ...1 CH d_IN idx sprintf ch2 CH d_1 idx status rspio2_Connect vi ch1 ch2 wait until relays have settled timeout 500 ms status rspio2_WaitForDebounce vi 500 0 configure channel 1 to 8 to mode digital dynamic for idx 1 idx 8 idx sprintf chName CH d idx status rspio2_ConfigureChannelMode vi chName RSPIO2_VAL_CH_MODE_DIGITAL_DYNAMIC configure channel 9 to 10 to mode square wave for idx 9 idx 10 idx sprin...

Page 55: ...reChannelLevels vi chName 3 3 0 0 configure output level for the analog channels status rspio2_ConfigureChannelLevels vi CH13 3 3 0 0 status rspio2_ConfigureChannelLevels vi CH14 5 0 0 0 status rspio2_ConfigureChannelLevels vi CH15 12 0 0 0 configure group A B C for digital IO output digital low level 0 0 V input digital high threshold 2 0 V input digital low threshold 0 8 V for idx 0 idx 2 idx rs...

Page 56: ...s for idx 1 idx 16 idx sprintf chName CH d idx set output high level to 0 V status rspio2_ConfigureChannelLevels vi chName 0 0 0 0 select output high level status rspio2_ConfigureChannelMode vi chName RSPIO2_VAL_CH_MODE_ANALOG disconnect output channel status rspio2_ConfigureOutputMux vi chName RSPIO2_VAL_OUTMUX_MODE_OPEN disconnect the rest status rspio2_DisconnectAll vi configure module earth fr...

Page 57: ...ule the red LED will light up to indicate the fault The test is limited to checking the cPCI interface and the firmware of the R S TSPIO2 Note the following statements describ ing the different display states of the red and green LED after the LED test has been performed Table 8 2 Observations about the power on test LED Description PWR LED green on All power supply voltages are present PWR LED gr...

Page 58: ...nsured by measurements via the analog bus First the global analog bus and then the local analog bus are tested for inadmissible voltages After an isolation measurement between the bus lines all the relays cou pling matrix multiplexer are tested This is followed by measurements on all accessi ble components of the module Then if possible triggering via PXI lines is tested You can find information a...

Page 59: ...e description R S TS PIO2 43 User Manual 1506 7208 12 06 9 Interface description 9 1 Interface description R S TS PIO2 9 1 1 Connector X1 Figure 9 1 Connector X1 view plug side Interface description R S TS PIO2 ...

Page 60: ...tion R S TS PIO2 44 User Manual 1506 7208 12 06 Figure 9 2 Pin assignment for connector X1 9 1 2 Connector X20 Figure 9 3 Connector X20 view plug side NC not connected NP not populated Interface description R S TS PIO2 ...

Page 61: ...Interface description R S TS PIO2 45 User Manual 1506 7208 12 06 Figure 9 4 Pin assignment for connector X20 9 1 3 Connector X10 Plug type DIN 41612 96 pin female Interface description R S TS PIO2 ...

Page 62: ...CH1_1R CH2_1R CH3_1R 3 CH1_1 CH2_1 CH3_1 4 CH1_2 CH2_2 CH3_2 5 LO LO LO 6 LO CH4_1 CH4_SHI 7 CH4_OUT1 CH4_2 CH4_SLO 8 CH4_1R CH6_OUT1 CH7_OUT1 9 CH5_OUT1 CH6_1R CH7_1R 10 CH5_1R CH6_1 CH7_1 11 CH5_1 CH6_2 CH7_2 12 CH5_2 LO LO 13 LO LO CH8_SHI 14 CH8_OUT1 CH8_1 CH8_SLO 15 CH8_1R CH8_2 CH11_OUT1 16 CH9_OUT1 CH10_OUT1 CH11_1R 17 CH9_1R CH10_1R CH11_1 18 CH9_1 CH10_1 CH11_2 Interface description R S T...

Page 63: ...1R CH16_2 CH16_SHI 30 GND GND CH16_SLO 31 GND GND GND 32 XTO1 XTI1 CHA_GND The CHA_GND signal is connected with the front plate of the module and via two 10 nF capacitors with GND The front plate itself has no direct connection to GND When a test object is connected the test object GND should be connected to GND To avoid ripple loops do not connect GND and CHA_GND 9 1 4 Connector X30 Figure 9 6 Co...

Page 64: ...S PIO2 48 User Manual 1506 7208 12 06 Pi n E D C B A 5 ABC1 ABA1 4 ABB1 3 ABC2 ABB2 2 ABA2 1 ABD2 ABD1 9 2 Interface description for R S TS PDC Figure 9 7 Connector X20 R S TS PDC mating side Interface description for R S TS PDC ...

Page 65: ..._1 COM_1 15V_2 15V_2 5V_2 3 3V_2 COM_2 COM_1 COM_1 COM_1 COM_1 COM_1 COM_2 COM_2 COM_2 COM_2 COM_2 GND RRST RCS GND 5V 1 RSCLK RSDI E A B C D 5V 2 5V 2 5V 2 5V 2 1 TS PDC Version 1 0 is supplied via these pins from 5V for backplanes up to Version 3 x 2 TS PDC Version 1 1 or higher is supplied via these pins or pins from 1 3 TS PDC Version 1 3 or higher This pin is not connected 4 TS PDC Version 1 ...

Page 66: ...0 Specifications The technical data of the Analog Digital IO Module 2 R S TS PIO2 are shown in the corresponding data sheets In the event of any discrepancies between date in this user manual and technical data in the data sheet the data sheet takes precedence ...

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