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I am having issues using a SLC 5/04 communicating to a PVP with a DH+ module. I am getting communication time-outs and tag errors when running with PVP. |
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The Comms Service Select is similar to the Time Slice setting in Control logix/PLC 5 processors, often times with more then one PVP/VVCE on a network this status bit will need to be set to 0. For channel 0 the Comms Service Select bit is S:33/5 For channel 1 the Comms Service Select bit is S:2/15 Channel 0 should have Comms Service Select set to 0 by default which is optimal, but for Channel 1 it is set to 1 which should be switched to 0 for faster comms and to avoid tag time-outs on the PVP. Summary: Setting the Comms Service Select bit in the SLC to 0 will speed up communication which may fix tag errors and time-out errors. |
