Connecting the DC551-CS31 and S500 I/O devices to the \ CS31 bus¶
The base module “DC551-CS31” is available in two versions in the PLC configuration:
DC551-CS31 8 DI + 16 DC / without fast counter
The addresses 00…61 can be set at the module and in the PLC configuration.
DC551-CS31 8 DI + 16 DC + 2FC / with 2 fast counters
The hardware addresses 70…99 can be set at the module. This corresponds to the module addresses 00…29 with activated counter. In the PLC configuration and at the block CNT_DC551, the module address (00..29) is set.(link to module description Contents).
The following parameters can be set in the PLC configuration for the DC551-CS31:
| Parameter | Default value | Value | Meaning |
| Ignore module see remark 1 | No | No | It is checked whether the module exists on the CS31 bus. |
| Yes | Module is not checked. -> available as of CPU firmware V1.2.0 and PS501 V1.2 |
||
| Module address | 0 | 0…69 | Module address of the DC551-CS31 without fast counter |
| 0…29 | Module address of the DC551-CS31 with fast counter | ||
| Error-LED see remark 2 | On | On | The error LED lights up for errors of all classes, no failsafe function activated. |
| Off_by_E4 | Warnings (E4) are not indicated by the error LED, no failsafe function activated. | ||
| Off_by_E3 | Warnings (E4) and light errors (E3) are not indicated by the error LED. No failsafe function activated. |
||
| On+failsafe | The error LED lights up for errors of all classes and the failsafe function of the CS31 bus is activated. -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Off_by_E4+failsafe | Warnings (E4) are not indicated by the error LED, the failsafe function of the CS31 bus is activated. -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Off_by_E3+failsafe | Warnings (E4) and light errors (E3) are not indicated by the error LED, the failsafe function of the CS31 bus is activated. -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Check supply | On | On | Control voltage monitoring ON |
| Off | Control voltage monitoring OFF | ||
| Input delay | 8 ms | 0.1 / 1 / 8 / 32 ms | Input delay 0.1 / 1 / 8 / 32 ms |
| Fast counter | 0-No counter | 0-No counter | Operation mode of the fast counter (Link to hardware / description of fast counters Fast Counter) |
| Detection short-circuits at outputs | On | On | Output short-circuit detection ON |
| Off | Output short-circuit detection OFF | ||
| Behaviour of outputs at communication fault see remark 2 | Off | Off | Behavior of outputs at communication faults on the CS31 bus OFF |
| Last value | Last value -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Substitute value | Substitute value -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Last value 5 sec. | Last value for 5 seconds -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Substitute value 5 sec. | Substitute value for 5 seconds -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Last value 10 sec. | Last value for 10 seconds -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
| Substitute value 10 sec. | Substitute value for 10 seconds -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |
||
Substitute value see remark 2 |
0 | 0…65535 0000hex…FFFFhex |
Substitute value for the outputs, one bit per output, bit 0=C8 .. bit 15=C23 -> available as of CPU firmware V1.2.0, DC551-CS31 firmware V1.9 and PS501 V1.2 |