S7-400, M7-400 Programmable Controllers

Transcription

1 This Supplement contains additional information about the products. It is a separate component and should be considered more up-to-date than the information in the manuals and catalogs if uncertainties arise.

2 Siemens AG Bereich Automatisierungs- und Antriebstechnik Geschaeftsgebiet Industrie-Automatisierungssysteme Oestliche Rheinbrueckenstr Karlsruhe

3 Supplement to the Documentation S7-400, M7-400 Contents 1 Connecting the Central Rack (CR) and the Expansion Rack (ER) Special Features of STEP 7 Programming with CPUs 41x Cycle and Reaction Times of the S Special Features of Communication Behavior of S7-400 Signal Modules After Parameter Assignment PROFIBUS DP Master Interface IM PS A (0KA00) Power Supply Module PS A (0KA01) and PS A R Power Supply Modules SM 421 Digital Input Module;DI 32xDC 24 V Points to Note when Installing a Synchronization Submodule SM 431 Analog Input Module;AI 16 x 13 Bit (6ES7431-0HH00-0AB0) The information in this supplement regarding the properties of CPUs relates to the following CPUs with their specified release levels. CPU Order Number From Release Level CPU ES XF02-0AB0 02 CPU ES XG02-0AB0 01 CPU DP 6ES XG02-0AB0 01 CPU ES XG02-0AB0 02 CPU DP, 128 Kbytes 6ES XG02-0AB0 02 CPU DP, 384 Kbytes 6ES XJ01-0AB0 02 CPU ES XJ02-0AB0 02 CPU DP, 0.8 Mbytes 6ES XK01-0AB0 02 CPU DP, 1.6 Mbytes 6ES XL01-0AB0 02 CPU ES XL00-0AB0 01 CPU 417-H 6ES HL00-0AB0 01 3

4 S7-400, M7-400 Supplement to the Documentation 1 Connecting the Central Rack (CR) and the Expansion Rack (ER) EXTF LED on the IM 461-x On an expansion rack (ER) connected to a central rack (CR) via an IM 460-3/IM (remote link), the EXTF LED on the receiving IM lights up when the CR is switched off. ON an ER connected to a CR via an IM 460-0/IM or IM 460-1/IM (local link), the EXTF LED on the receive IM does not light up when the CR is switched off. Interference Suppression Measures To conform to the requirements of the EC Directive 89/336/EEC Electromagnetic Compatibility (CE mark), you should take the following measures when connecting central racks and expansion racks: Remote connection of expansion rack to a central rack with mounting rack UR via IM 460-0/IM 461-0: Attach a ferrule (split ferrite core) close to each connector on the IM cable A suitable split ferrite core is that of the type SFC 10 by Thora, Winn 6, D Herrieden, Germany Tel or a comparable product. Figure 1-1 shows an IM cable with a ferrule (split ferrite core). Ferrule (Split Ferrite Core) Figure 1-1 IM Cable with Ferrule (Split Ferrite Core) 4

5 Supplement to the Documentation S7-400, M Special Features of STEP 7 Programming with CPUs 41x Addressing Modules (with CPUs 412 to 416) The start address of modules and components in either a central configuration or in a distributed configuration must be a value that can be divided by 4 with no remainder (0, 4, 8, 12...). Starting a Timer If there is an instruction for starting a timer programmed in the user program, there must be a BCD number at this point in the program sequence in accumulator 1. This also applies if the timer is not started. Setting a Counter If there is an instruction for setting a counter programmed in the user program, there must be a BCD number at this point in the program sequence in accumulator 1. This also applies if the counter is not set. SLD and SRD Instructions (with CPUs 412 to 416) If parameters 64, 96, 128, 160, 192, or, 224 are transferred to the SRD or SLD instructions in accumulator 2-L-L with the CPUs 41x, status bit CC1 is set. RND- and RND + Instructions (with CPUs 412 to 416) If a value in the range 0 to 0.25 is present as a floating-point number, the instruction RND+ supplies the result 0 instead of 1. If a value in the range 0 to is present as a floating-point number, the instruction RND- supplies the result 0 instead of -1. Writing Bit Instructions (with CPUs 412 to 416) In the case of a fault, writing bit instructions report a read error instead of a write error. This applies to the following: Area length errors (entry in the diagnostic buffer made with event ID W#16#2522 instead of W#16#2523) Area errors (entry in the diagnostic buffer made with event ID W#16#2524 instead of W#16#2525) I/O access errors (entry in the diagnostic buffer made with event ID W#16#2944 instead of W#16#2945) I/O Access via Word and Double Word Commands (CPU and CPU 417-4H) With I/O access via word or double word commands, if the first byte or the first one to three bytes exist but the rest of the addressed area does not, accumulator 0 is loaded. 5

6 S7-400, M7-400 Supplement to the Documentation Access to DP Slaves (with CPUs 412 to 416) A DP station is connected to an S7-400 via an external DP interface module CP If you use word access to access a DP slave with one byte of user data (instructions L PIW, T PQW), the I/O access error organization block (OB122) is not called. After executing the instruction L PIW, accumulator 1 contains B#16#00 instead of the non-existent peripheral byte. If you use double word access to access a DP slave with three bytes of user data (instructions L PID, T PQD), the I/O access error organization block (OB122) is not called. After executing the instruction L PID, accumulator 1 contains B#16#00 instead of the non-existent peripheral byte. Single Step (with CPUs 412 to 416) With the STEP 7 function single step mode, the CPU requires more time than the execution time for the instruction. As a result of the scan cycle time monitoring, it is possible that the CPU may go into STOP mode because the cycle time was exceeded. You can avoid this by calling the SFC43 RE_TRIGR in the time error organization block (OB80). Breakpoints (with CPUs 412 to 416) If you have set a breakpoint at a jump instruction or a block end instruction and the CPU has reached this instruction, neither the function execute next statement nor the function execute call can be executed. Instead the error message D063: Resource error: the trigger event is occupied is displayed. If you have set a breakpoint at a UC or CC instruction and the CPU has reached this instruction, the function execute call cannot be executed. Instead the error message D063: Resource error: the trigger event is occupied is displayed. Remedy: Delete the current breakpoint or move it to the previous command line. SFC 11 SYNC/FREEZE SFC11 cannot be called in the startup OBs (OB100, OB101). A call in these OBs is rejected with the RET_VAL identifier 0x80C8. In the other priority classes, you can use SFC11 without restrictions. You can use SFC11 only for the plug-in DP modules (CP extended, IM 467). SFC11 cannot be used for the integrated DP interfaces of the CPU 413-2, 412-2, and ET 200M stations assigned to sync/freeze groups with STEP 7 during hardware configuration must not contain FM or CP modules. 6

7 Supplement to the Documentation S7-400, M7-400 Deviation Precision for Time Synchronization The deviation precision during time synchronization is: At the communication bus 10 ms At the MPI 200 ms Accuracy of the Integrated Real-Time Clock The accuracy of the integrated real-time clock is: During operation With battery backup 8.6 s/d 1.7 s/d SFC 90 Not Released (CPU 417-4H) SFC 90 has not yet been released for use with CPU 417-4H. FM 353/354 Not Distributed (CPU and CPU 417-4H) If you use the CPU 417 as the DP master, you must not use FM 353 and 354 in a distributed configuration within an ET 200M. This applies to: FM 353, up to and including 6ES AH01-0AE0, firmware version 3.3 FM 354, up to and including 6ES AH01-0AE0, firmware version 3.3 No Cross-Module Addressing in the DP Address Range at the Integrated DP Interface (CPU and CPU 417-4H) Example: CPU 417 PROFIBUS DP DP slave e.g. ET 200 M DI DI This type of cross-module addressing must not be programmed at inputs or at outputs! EB0 EB1 to 3 Do not access these modules with L PID 0 or L PIW 0! 7

8 S7-400, M7-400 Supplement to the Documentation 3 Cycle and Reaction Times of the S7-400 Introduction The times and measured values listed below can be used in conjunction with the information provided in the Module Specifications Reference Manual to calculate the cycle and reaction times. Test Arrangement CPU 417-4/CPU417-4H with DI 16 (421-7DH00-0AB0) and DO 32 (422-1BL00-0AA0) in the central rack. Operating System Processing Times of the CPUs Sequence CPU CPU 417-4H CPU 417-4H Solo Redundant Cycle control s 1) 152 s s 2) 200 s s 3) 445 s 1. The update of the timer cells increases the cycle time by approximately 140 s every 10 ms. 2. The update of the timer cells increases the cycle time by approximately 420 s every 10 ms. The double master detection increases the cycle time by approximately 1070 s every 200 ms. 3. The update of the timer cells increases the cycle time by approximately by approximately 460 s every 10 ms. 8

9 Supplement to the Documentation S7-400, M7-400 Updating the Process Image of the CPUs Parts CPU CPU 417-4H CPU 417-4H Solo Redundant K Basic load 20 s 20 s 20 s A In the central rack Read byte/word/double word Write byte/word/double word with n = 1, 2, or 4 n*1.9 s n*1.9 s 13+n*1.9 s 9+n*1.9 s 48+n*1.9 s 44+n*1.9 s B C D Per byte in expansion unit with local link Read byte/word/double word Write byte/word/double word with n = 1, 2, or 4 Per byte in expansion unit with remote link Read byte/word/double word Write byte/word/double word with n = 1, 2, or 4 In DP area for integrated DP interface Read byte/word/double word Write byte/word/double word with n = 1, 2, or 4 n*5 s n*5 s n*10 s n*10 s n*0.5 s n*0.5 s 13+n*5 s 9+n*5 s 13+n*10 s 9+n*10 s 13+n*0.5 s 9+n*0.5 s 48+n*5 s 44+n*5 s 48+n*10 s 44+n*10 s 48+n*0.5 s 44+n*0.5 s CPU-Specific Factors Sequence CPU CPU 417-4H CPU 417-4H Solo Redundant Factor Direct Access of the CPUs to I/O Modules Read byte Read word Read double word Write byte Write word Write double word Access Type CPU CPU 417-4H CPU 417-4H Solo Redundant 2.4 s 3.8 s 7.6 s 2.4 s 3.9 s 7.8 s 43 s 46 s 50 s 38 s 41 s 45 s 79 s 82 s 86 s 73 s 76 s 80 s 9

10 S7-400, M7-400 Supplement to the Documentation Increasing the Cycle Time by Nesting Interrupts CPU Hardware Interrupt Diagnostic interrupt Time-of- Day Interrupt Time-Delay Interrupt Cyclic Interrupt Programming/ Access Error s 420 s 350 s 260 s 260 s 130 s / 140 s H Solo 390 s 450 s 310 s 270 s 255 s 140 s / 170 s H Red 705 s 785 s 560 s 530 s 530 s 175 s / 240 s CPU Asynchronous error (OB 85 while updating the process image) s 417-4H Solo 260 s 417-4H Redundant 310 s Hardware Interrupt Reaction Times of the CPUs CPU min. max s 435 s 417-4H Solo 270 s 530 s 417-4H Redundant 375 s 690 s Diagnostic Interrupt Reaction Times of the CPUs CPU min. max s 490 s 417-4H Solo 325 s 645 s 417-4H Redundant 415 s 780 s Reproducibility of Time-Delay Interrupts and Cyclic Interrupts of the CPUs CPU Reproducibility Time-Delay Interrupt Cyclic Interrupt s / +330 s 40 s / +40 s 417-4H Solo 750 s / +400 s 850 s / +850 s 417-4H Redundant 500 s / +800 s 700 s / +700 s 10

11 Supplement to the Documentation S7-400, M Special Features of Communication Number of Operator Stations This specifies how many operator stations you can log on to the CPU, for example for process control messages. CPU CPU CPU 413-1, CPU CPU 414-1, CPU CPU 416-1, CPU CPU 417-4, CPU 417-4H 8 OS Stations Communication from PG/OP to Module without MPI If one of the programming devices or operator panels connected to a multipoint interface (MPI) communicates with an S7-400 module which does not have an MPI connection (for example, SINEC CPs, FM 456 etc.), this module can be reached via the CPU to whose MPI the programming device or operator panel is connected. In this case, the CPU simply acts as an intermediary for the transfer. This type of connection between a programming device or operator panel and a module only communicating via the communication bus occupies two connection resources in the CPU. CPU CP or FM PG or OP MPI C bus S7-400 station One connection resource occupied Two connection resources occupied in the CPU One connection resource occupied Figure 1-2 Communication between Programming Device/Operator Panel and a Module without MPI Maximum Number of Connections via MPI When configuring the connections of a CPU 416 via MPI, remember to include the PG connection in the maximum number of possible connections. 11

12 S7-400, M7-400 Supplement to the Documentation PG Access A CPU exchanges data with other systems using communication mechanisms, for example with other programmable controllers, with operator interface stations (OP, OS) or with programming devices (see Figure 1-3). PG OS PLC SIMATIC NET CPU MPI DP network PG OS PLC PG OS Slave Figure 1-3 Data Exchange Process communication, including communication services for data exchange between programmable controllers (PLC PLC) and between programmable controllers and operator interface stations (PLC OS/OP), has priority in CPUs over communication between programming devices and CPUs. The CPUs have different characteristics. One of these characteristics is their communication performance. If the communication resources of a CPU are occupied completely by process communication, this can severely hamper access to the CPU from the programming device. This can often be avoided by a slight reduction in process communication. The following table shows several examples of this. The values relate to a user data length of 200 bytes. Communication Mechanism PLC PLC communication with USEND/URCV PLC PLC communication with BSEND/BRCV PLC PLC communication with AGSEND/RCV * PLC-OP communication (single jobs) Max. No. of Frames CPU 412, CPU 413 CPU 414, CPU 416 Max. No. of Frames with Reliable PG Access Max. No. of Frames 140 / s 130 / s 150 / s 140 / s 100 / s 90 / s 100 / s 90 / s 70 / s 65 / s 70 / s 65 / s 65 / s 60 / s 80 / s 60 / s Maximum No. of Frames with Reliable PG Access * It is advisable to set a minimum scan cycle time of 10 ms or to locate the calls in a cyclic interrupt priority class. The number of frames per line reflects the performance of the CPU. 12

13 Supplement to the Documentation S7-400, M Behavior of S7-400 Signal Modules After Parameter Assignment Parameter Assignment of S7-400 Signal Modules S7-400 signal modules can be assigned parameters by the operating system of the CPU or by calling an SFC in your program. Parameters are assigned by the operating system of the CPU in the following cases: At startup (both complete restart and hot restart) After plugging a module into a configured slot After the return of a rack or station when using distributed I/Os S7-400 Input Modules After assigning parameters to an S7-400 input module, the data read by your program from the module are not immediately valid. You can only evaluate these when bit 2 ( operating status ) in byte 2 of diagnostic data record 0 has the value 0 ( RUN ). For this reason, all S7-400 input modules which can be assigned parameters provide diagnostic data record 0. You can read out diagnostic data record 0 with SFC51 RDSYSST (input parameter SZL_ID W#16#00B1) or with SFC59 RD_REC. S7-400 Output Modules After assigning parameters to an S7-400 output module, it is possible that the output data you have written to the module is not transferred immediately to the outputs. From the time that bit 2 ( operating status ) in byte 2 of diagnostic data record 0 is set to the value 0 ( RUN ), the module transfers the output data to the output terminals. For this reason, diagnostic data record 0 is provided by all S7-400 output modules which can be assigned parameters. You can read out diagnostic data record 0 with SFC51 RDSYSST (input parameter SZL_ID W#16#00B1) or with SFC59 RD_REC. 13

14 S7-400, M7-400 Supplement to the Documentation 6 PROFIBUS DP Master Interface IM 467 Order Number 6ES GJ00-0AB0 Use Design PROFIBUS DP, standardized according to EN 50170, allows fast communication in the field area between programmable logic controllers, PCs, and field devices. Field devices include distributed I/O devices (ET 200), drives, valve islands, switching devices, and many others. The IM 467 interface module is intended for use in an S7-400 programmable logic control system. It enables you to connect an S7-400 to PROFIBUS DP. Configuration according to the rules for an S pin sub-d female connector for attachment to PROFIBUS DP Can be operated without a fan A maximum of four IM 467 modules can be used in the central rack. No slot rules apply A total of four IM 467 and CP Extended modules can be used together Various transmission rates between 9.6 Kbps and 12 Mbps can be set in the software Configuration and programming are possible via PROFIBUS DP although PROFIBUS parameters must not be changed! 14

15 Supplement to the Documentation S7-400, M7-400 LED displays Mode switch PROFIBUS DP interface 9-pin sub-d Figure 1-4 Configuration of the IM 467 Communication Services The IM 467 provides you with two possible means of communication: PROFIBUS-DP The IM 467 is a PROFIBUS DP master which conforms to EN It is configured completely with STEP 7. In principle, its behavior is the same as that of the integrated PROFIBUS DP interfaces on the CPU modules (for differences, refer to the technical data of the IM 467). No function calls are necessary in the STEP 7 user program for DP communication. S7 functions S7 functions ensure optimum, simple communication in a SIMATIC S7/M7/C7 automation system. For IM 467, the following S7 functions are used: Programming device functions via PROFIBUS DP Operator monitoring and control functions via PROFIBUS DP Communication requires no further configuration on the IM 467. The S7 functions can be used alone or parallel to the PROFIBUS DP protocol. If they are used parallel to DP communication, this will affect the PROFIBUS DP round-trip time. 15

16 S7-400, M7-400 Supplement to the Documentation Configuration The IM 467 is configured with STEP 7. The configuration data is also retained during power down without a submodule being necessary. With the S7 functions, all IM 467 modules atached to the network and all CPUs connected via the SIMATIC S7 400 backplane bus can be programmed/configured remotely. Technical Data The technical data of the IM 467 are listed below. Dimensions and Weight Dimensions WxHxD 25 x 290 x 210 mm (1.0 x 11.4 x 8.3 in.) Weight 700 g (28 oz) Ambient Conditions Ambient temperature Operation 0 to 60 C ansport and storage 40 to +70 C Operating altitude 3000 m above sea level PROFIBUS DP Standard PROFIBUS, EN ansmission rate 9.6 Kbps to 12 Mbps, ansmission method can be set to various rates RS 485 Ports 9-pin Sub-D female Maximum Cable Lengths with PROFIBUS DP For use with Power supply Current consumption from 5 VDC Addressing volume Number of connectable I/Os (slaves) Number of connections for S7 functions for PGs and operator interface devices Data volume per slave Consistency Configuration software Conditions for Use SIMATIC S7-400, max. 4 IM 467 in the central rack 5 VDC via the backplane bus 1.2 A max. 4 Kbytes for inputs and 4 Kbytes for outputs diagnostic connection max. 240 bytes max. 128 bytes STEP 7 Differences compared with the DP interface integrated in the CPU Different system status list IDs for system diagnostics Extended SFC operating times (in some cases) Additional return codes for SFC14 and SFC15 ansmission rate in Kbps Max. length of a bus segment in m Max number of bus segments 1) Max. length in m ) Bus segments are interconnected by an RS 485 repeater 16

17 Supplement to the Documentation S7-400, M PS A (0KA00) Power Supply Module The PS A (0KA00) power supply module cannot be used redundantly. At the present time only the PS A R power supply module with the order number 6ES KR00 0AA0 can be used redundantly. 8 PS A (0KA01) and PS A R Power Supply Modules The power supply modules have an inrush current limitation in accordance with NAMUR. When you switch off the supply voltage or disconnect the power supply module from the mains, you no longer have to wait approximately 20 seconds before switching the supply voltage on again. The inrush current limitation of the power supply module is always guaranteed to be fully effective. 9 SM 421 Digital Input Module;DI 32xDC 24 V Order Number 6ES BL00-0AA0 Extended Function from Release Level 03 The lower limit of the nominal input range for the signal 0 has been extended from -3 V to -30 V. This means that the nominal input voltage for signal 0 is 30 V to 5 V. 10 Points to Note when Installing a Synchronization Submodule Issuing the Rack Number In order to differentiate between the two part systems in an H system, the CPUs must also be able to issue the rack number. One CPU has the rack number 0, the other CPU has the rack number 1. You set the rack numbers on the synchronization submodule. For this purpose there is a miniature sliding switch on the submodule with three settings. The rack number is adopted following Power On and a manual memory reset. 17

18 S7-400, M7-400 Supplement to the Documentation Inserting and Removing the Synchronization Module with Voltage Applied When inserting or removing a synchronization module in a H system, you do not need to switch off the power supply (PS). The synchronization module has a second front cover which you must unscrew before you remove the module (the module cannot be removed while the cover is in place). When you have unscrewed this front cover, the synchronization module is isolated from the voltage and you can remove it without damage. When you insert the submodule, it is only connected to the voltage when you screw the front panel into place again (see following figure). Additional front cover Switch for setting the rack number 18

19 Supplement to the Documentation S7-400, M SM 431 Analog Input Module;AI 16 x 13 Bit (6ES7431-0HH00-0AB0) Order Number 6ES HH00-0AB0 Characteristics The SM 431;AI 16 x 13 Bit has the following characteristics: 16 inputs for current/voltage measurement Resolution13 bits Non-isolated (no isolation between bus section and analog section) Permissible common-mode voltage 2 VDC/VAC 19

20 S7-400, M7-400 Supplement to the Documentation Terminal Connection Diagram of the SM 431;AI 13 x 16 Bit Voltage measurement Current measurement L+ M L+ M0+ M0 M1+ M1 M2+ M2 M3+ M3 M4+ M4 M5+ M5 M6+ M6 M7+ M7 M8+ M8 M9+ M9 M10+ M10 M11+ M11 M12+ M12 M13+ M13 M14+ M14 M15+ M15 M CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15 Word 0 Word 2 Word 4 Word 6 Word 8 Word 10 Word 12 Word 14 Word 16 Word 18 Word 20 Word 22 Word 24 Word 26 Word 28 Word 30 Figure 1-5 Terminal Connection Diagram of the Analog Input Module SM 431;AI 16 x 13 Bit 20

21 Supplement to the Documentation S7-400, M7-400 Block Diagram of the SM 431;AI 13 x 16 Bit Measuring range module * * * * ADC * * * * = ansducer *Voltage/current and M must be linked to the chassis ground of the rack * Figure 1-6 Block Diagram of the SM 431 Analog Input Module;AI 16 x 13 Bit 21

22 S7-400, M7-400 Supplement to the Documentation Adapting to Different Sensors To adapt the analog input module to different sensors, follow the steps outlined below: 1. Insert the measuring range module into the module. One measuring range module adapts two inputs channels to a sensor type. 2. Set the relevant measuring range for the channels of the module when you set the module parameters. Using the Measuring Range Modules With the measuring range modules supplied, you can adapt two successive input channels or one resistance channel to one sensor type. The following table shows the assignments of individual measuring range module positions to the relevant sensor types. A B C D Position Sensor Types Voltage sensors; 1 V Voltage sensors; 1 to 5 V, 10 V Current sensors; 20 ma, 4 to 20 ma 4-wire transducer with current output 2-wire transducer; 4 to 20 ma To apply current to these transducers, you must connect 24 V to the front connector terminals L+ and M.! Warning The module can be damaged. The shunt resistance of an input channel can be destroyed if you accidentally connect a voltage sensor to the channel and you set the measuring range module to position C (current/4-wire transducer). Please make sure that the measuring range module is in the correct position before you connect a sensor to the module. 22

23 Supplement to the Documentation S7-400, M7-400 Parameters The analog input module SM 431;AI 16 x 13 Bit use the following static parameters which are stored in data set 0. Table 1-1 Static Parameters of the SM 431;AI 16 x 13 Bit Parameter The following settings can be made: Measuring range deactivated (channel-bychannel) Voltage measuring range (channel-by-channel) Current measuring range for 4-wire transducers (channel-by-channel) Current measuring range for 2-wire transducers (channel-by-channel) Interference frequency suppression (for the whole module) Value Range Yes/No 1 V 1 to 5 V 10 V 4 to 20 ma 20 ma 4 to 20 ma 50 Hz Integration time 60 ms 60 Hz Integration time 50 ms The measuring range module sets two channels. For this reason, there are restricting parameter assignment conditions for two neighboring channels (0/1), (2/3), (4/5), (6/7). Table 1-2 Combinations of n Channels; Channel n+1 (n: 0, 2, 4...) Measuring Range Channel n+1 Measuring Range Channel n Deactivated Voltage 1 V Voltage 1 to5 V Voltage 10 V Current 4-wire trans.* Current 2-wire trans.* Deactivated x x x x x x Voltage 1 V x x Voltage 1 to 5 V x x x Voltage 10 V x x x Current 4-wire trans.* x x Current 4-wire trans.* x x * trans. = transducer 23

24 S7-400, M7-400 Supplement to the Documentation Technical Data of the SM 431;AI 16 x 13 Bit Dimensions, Cable Length, and Weight Dimensions WxHxD (mm) Weight Module-Specific Data Number of inputs For current/voltage measurement 16 Cable length Shielded Surge-protection in accordance with IEC x290x210 approx. 500 g max. 200 m External protection device required in the signal lines Voltages, Currents, Potentials Load voltagel+ 24 VDC only necessary for supplying 2-wire transducers Reverse polarity protection Yes Voltage supply for transducers Short-circuit protected Feed current per channel Galvanic isolation between analog section and bus Galvanic isolation between analog section, bus and chassis ground Test voltage Common-mode test voltage Between the reference potentials of the connected sensor and chassis ground (input voltage = 0 V) Current consumption From S7-400 bus (5 VDC) From load current supply L+ Power losses Yes typ. 50 ma No Yes 500 VDC 2 VDC, 2 VAC max. 100 ma typ. 70 ma 0 to 400 ma max. 2 W Analog Value Generation Measuring principle Sigma-Delta transformer (integrating) Can be set for interference frequency f1 in Hz Resulting in: Integration time/conversion time/resolution (per channel) Possible integration time in ms Possible basic conversion time in ms Cycle time Number of active channels x basic conversion time Resolution in bits (incl. overrange in second complement)

25 Supplement to the Documentation S7-400, M7-400 Interference Suppression, Error Limits Interference voltage suppression for f=nx(f1 1%) (f1=interference frequency) Common mode interference (V CM <2V s ) Normal-mode interference (Peak value of interference < nominal value of the input range) Cross-talk attenuation between the inputs At 50/60 Hz Operating error limits (in the entire temperature range, related to the input range) 1 V 10 V V 20 ma ma Basic error limit (operating error limit at 25 C, related to input range) 1 V 10 V V 20 ma ma >86 db >60 db >50 db 0.65% 0.65% 1.0% 0.65% 0.65% 0.25% 0.25% 0.5% 0.25% 0.25% Temperature error (related to input range) In all ranges 0.01% /K Linearity error (related to input range) 0.05% Repetition accuracy (in settled state at 25 C, related to input range) 0.1% Code gaps Code gaps occur systematically in the ranges 1 to 5 V and 4 to 20 ma Status, Interrupts, Diagnostics Interrupts Limit value interrupts Diagnostic interrupts Diagnostic functions Fault indicators on the module for internal faults for external faults Diagnostic functions Data for Selecting a Sensor Input ranges (nominal ranges)/input resistance For voltage ranges For current measurement Permitted input voltage for voltage input (destruction limit) Permitted input current for current input (destruction limit) Connection of signal sensors For voltage measurement For current measurement As 2-wire transducer As 4-wire transducer No No No No No 1V/10 M 10V/100 k 1 to 5 V/100 k 20mA/50 4 to 20mA /50 max. 20 V constant 75 V for max. 1 ms (mark-space ratio 1:20) 40 ma constant Possible Possible Possible Possible 25

26 S7-400, M7-400 Supplement to the Documentation 26 26