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CP341 slow communication with Modbus Master

6/6/2016 8:52 PM	Rate (0)
M_Sohaib Posts: 7 Rating: (0)	I am using CP341 in RS485 modbus slave mode with Alr121 (modbus master). I copied source code from siemens example projects library which is attached with this post. I want to send 3000 inuputs, 3000 coils and 60 analog registers to modbus master which is ALR 121. The problem is that the sending speed is very slow from CP341. It is almost taking 5 minutes to update data on the master. Furthermore, with this amount of data, my communication works for one or two days only then suddenly TX and RX lights on CP341 stop blinking. Then i have to reduce the data which then allows the comms to wor again. I dont know if there is something wrong with this sample code that i used. Please somebody help me. Attachment CP341 Modbus Slave Code.txt (70 Downloads)
M_Sohaib Posts: 7 Rating: (0)
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