PM867 read modbus protocol data fail,can someone hlep me?
Asked 7 months ago
Answers
0
Open On-Line Help and search for the status code value ... In this case "-19"
You get a bunch of results, but the important one ( and the only hit for minus 19) is "General Status codes" ....
-19 cErrOperationNotAllowed
An attempt was made to carry out an unauthorised operation.
This is a general error - not a MODBUS specific error - so something is wrong with your setup somewhere. The MBRead and MBWrite blocks are failing to execute properly.
You get a bunch of results, but the important one ( and the only hit for minus 19) is "General Status codes" ....
-19 cErrOperationNotAllowed
An attempt was made to carry out an unauthorised operation.
This is a general error - not a MODBUS specific error - so something is wrong with your setup somewhere. The MBRead and MBWrite blocks are failing to execute properly.
Answered 7 months ago
by Matti Langvall Rank: 160 on 4/1/2020 11:20:06 PM | Like (0) | Report
Peculiar programming, you seem to be reading and writing to the same address?
I believe that address "%QX10#01" is to be used for writing a bool to a Discrete Coil on address 1.
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