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4.1.9.Map Descriptor Example 6:
Defining this Map Descriptor Driver can change the PLC mode to STOP (Program), MONITOR or RUN mode. The Driver issues a change mode command to the PLC whenever the value at the declared offset is updated.
Map_Descriptor_Name, | Data_Array_Name, | Data_Array_Offset, | Function, |
| Node_name |
| Length | Command_Name | Unit_Number |
CMD_RUN_ST, | DA_RUN_ST, | 0, | WRBX, |
| PLC1, |
| 1, | 0s |
The Driver will change PLC modes depending upon the value poked by the upstream device at offset (0 in this case). See section Appendix B.1 for values corresponding to PLC modes.
4.1.10.Map Descriptor Example 7: Read CPU Status:
Defining this Map Descriptor Driver reads the CPU status and stores it in the Data Array DA_STATUS.
Map_Descriptor_Name, | Data_Array_Name, | Data_Array_Offset, | Function, | Node_name | Length | Command_Name | Unit_Number |
CMD_STATUS, | DA_STATUS, | 0, | REBC, | PLC1, | 67, | CPU UNIT STATUS READ | 0s |
The Driver stores the status information in the named Data Array at consecutive locations starting with Data_Array_Offset.
See Appendix B.1 for further information.
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