5/19/2010 8:48 AM | |
Posts: 157 Rating: (10) |
DearWuestenraeuber, Thank you again for your help, now i modified the END_1 to be 16#A0 (160 Registers = 320 Bytes), Now i have an error code 16#A005, which means that "The number of registers in the request telegram is invalid"!! but i didn't send any request from my Modbus TCP client simulator??? Also, is there any way to reset the function without stopping the CPU?? Thanks in advance..
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5/19/2010 12:06 PM | |
Posts: 157 Rating: (10) |
DearWuestenraeuber, Thank you for you patient...i am still abeginnerin Open Modbus TCP.. Now theENQ_ENR must be 1 to indicate that my PLC is ready toreceive a request (from the manual:With TRUE signal at the trigger input ENQ_ENR the FB is ready for receiving a request telegram from the client)... so, this signal i put it always "1" to be ready....is that correct?? and why that error came to me without sending any request from my client???? Another thing, how i can configure the data in my DB as a Holding register?? I hope you help to finish this communication Thanks in advance,
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Last edited by: BilalD at: 5/19/2010 5:40 PM |
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