Transfer of the outputs¶
For the transfer to the CPU, the outputs of the CS31 modules are inputs of the CM574-RS in the CPU communication. For this reason, the output modules in the CM574-RS include IEC outputs (%Q).
| CS31 bus outputs | CM574 - COM1 CS31 bus |
CM574 - DPR | AC500 CPU | ||||||
|---|---|---|---|---|---|---|---|---|---|
| QIB | %QW | %QD | %IB | %IW | %ID | %QB | %QW | QID | |
| DC551_0 Outputs 8-15 | 1000 | 500 | 250 | 0 | 0 | 0 | 1.0 | 1.0 | 1.0 |
| DC551_0 Outputs 16-23 | 1001 | 1 | 1.1 | ||||||
| Not used | 1002 | 501 | 2 | 1 | 1.2 | 1.1 | |||
| Not used | 1003 | 3 | 1.3 | ||||||
| Module 4 Byte Output | Module 4 Byte Output | ||||||||
| DC551_0 Start value 1 (HH) | 1004 | 502 | 251 | 4 | 2 | 1 | 1.4 | 1.2 | 1.1 |
| DC551_0 Start value 1 (H) | 1005 | 5 | 1.5 | ||||||
| DC551_0 Start value 1 (L) | 1006 | 503 | 6 | 3 | 1.6 | 1.3 | |||
| DC551_0 Start value 1 (LL) | 1007 | 7 | 1.7 | ||||||
| DC551_0 End value 1 (HH) | 1008 | 504 | 252 | 8 | 4 | 2 | 1.8 | 1.4 | 1.2 |
| DC551_0 End value 1 (H) | 1009 | 9 | 1.9 | ||||||
| DC551_0 End value 1 (L) | 1010 | 505 | 10 | 5 | 1.10 | 1.5 | |||
| DC551_0 End value 1 (LL) | 1011 | 11 | 1.11 | ||||||
| DC551_0 Start value 2 (HH) | 1012 | 506 | 253 | 12 | 6 | 3 | 1.12 | 1.6 | 1.3 |
| DC551_0 Start value 2 (H) | 1013 | 13 | 1.13 | ||||||
| DC551_0 Start value 2 (L) | 1014 | 507 | 14 | 7 | 1.14 | 1.7 | |||
| DC551_0 Start value 2 (LL) | 1015 | 15 | 1.15 | ||||||
| DC551_0 End value 2 (HH) | 1016 | 508 | 254 | 16 | 8 | 4 | 1.16 | 1.8 | 1.4 |
| DC551_0 End value 2 (H) | 1017 | 17 | 1.17 | ||||||
| DC551_0 End value 2 (L) | 1018 | 509 | 18 | 9 | 1.18 | 1.9 | |||
| DC551_0 End value 2 (LL) | 1019 | 19 | 1.19 | ||||||
| Module 4 DWORD Output | Module 4 DWORD Output | ||||||||
| DC551_0 Control byte 1 | 1020 | 510 | 255 | 20 | 10 | 5 | 1.20 | 1.10 | 1.5 |
| DC551_0 Control byte 2 | 1021 | 21 | 1.21 | ||||||
| DC551_1 Outputs 8-15 | 1022 | 511 | 22 | 11 | 1.22 | 1.11 | |||
| DC551_1 Outputs 16-23 | 1023 | 23 | 1.23 | ||||||
| Module 4 Byte Output | Module 4 Byte Output | ||||||||
| DC551_1_AX522 Anal. output 0 (H) | 1024 | 512 | 256 | 24 | 12 | 6 | 1.24 | 1.12 | 1.6 |
| DC551_1_AX522 Anal. output 0 (L) | 1025 | 25 | 1.25 | ||||||
| DC551_1_AX522 Anal. output 1 (H) | 1026 | 513 | 26 | 13 | 1.26 | 1.13 | |||
| DC551_1_AX522 Anal. output 1 (L) | 1027 | 27 | 1.27 | ||||||
| DC551_1_AX522 Anal. output 2 (H) | 1028 | 514 | 257 | 28 | 14 | 7 | 1.28 | 1.14 | 1.7 |
| DC551_1_AX522 Anal. output 2 (L) | 1029 | 29 | 1.29 | ||||||
| DC551_1_AX522 Anal. output 3 (H) | 1030 | 515 | 30 | 15 | 1.30 | 1.15 | |||
| DC551_1_AX522 Anal. output 3 (L) | 1031 | 31 | 1.31 | ||||||
| DC551_1_AX522 Anal. output 4 (H) | 1032 | 516 | 258 | 32 | 16 | 8 | 1.32 | 1.16 | 1.8 |
| DC551_1_AX522 Anal. output 4 (L) | 1033 | 33 | 1.33 | ||||||
| DC551_1_AX522 Anal. output 5 (H) | 1034 | 517 | 34 | 17 | 1.34 | 1.17 | |||
| DC551_1_AX522 Anal. output 5 (L) | 1035 | 35 | 1.35 | ||||||
| DC551_1_AX522 Anal. output 6 (H) | 1036 | 518 | 259 | 36 | 18 | 9 | 1.36 | 1.18 | 1.9 |
| DC551_1_AX522 Anal. output 6 (L) | 1037 | 37 | 1.37 | ||||||
| DC551_1_AX522 Anal. output 7 (H) | 1038 | 519 | 38 | 19 | 1.38 | 1.19 | |||
| DC551_1_AX522 Anal. output 7 (L) | 1039 | 39 | 1.39 | ||||||
| 2 x Module 4 Word Output | 2 x Module 4 Word Output | ||||||||
| DC551_1_DC532 Output 16-23 | 1040 | 520 | 260 | 40 | 20 | 10 | 1.40 | 1.20 | 1.10 |
| DC551_1_DC532 Output 24-31 | 1041 | 41 | 1.41 | ||||||
| Module 1 Word Output | Module 1 Word Output | ||||||||
| Not used | 1042 | 521 | 260 | 42 | 21 | 10 | 1.42 | 1.21 | 1.10 |
| Not used | 1043 | 43 | 1.43 | ||||||
In the CPU, the input modules include IEC inputs (%I) and the output modules include IEC outputs (%Q). Consequently, from the CPUs point of view, the inputs of the CS31 module are read as IEC input, and the outputs of the CS31 module are written as output.
The easiest method to transfer the inputs in the PLC program of the CM574-RS is the DPRAM_IO_COPY: DPRAM_IO_COPY
For this purpose, symbolic names are assigned to each first byte on the CS31 bus and in the CPU communication area. For automatic length calculation, the last input byte is required.
In the example, these are:
First_Input_CS31 for %IB1000,
Last_Input_CS31 for %IB1037 and
First_Input_DPR for %QB0
The PLC program (FBD) then includes the instruction:
The transfer of the outputs from the CPU to the CS31 bus is performed analogously. The following symbolic names are entered into the PLC configuration:
First_Output_DPR for %IB0,
First_Output_CS31 for %QB1000 and
Last_Output_CS31 for %QB1041
The PLC program (FBD) then includes the instruction:
The entire PLC program on the CM574-RS consists of these two networks or function calls.
Note
It is necessary to use the function block DPRAM_IO_COPY. If SysMemCpy is used instead, data consistency of the I/Os is not guaranteed.