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I have a multidrop connection as follow:
AB PLC->Prosoft Card(RS-232)->FO Converter(B&B)->FO Converter(B&B)->Serial Converter(to RS485)->4 Slave devices (EATON - Diesel Pumps).
Initially the communication works fine, but after few days it drops for all slave devices and when I go to one slave device and change any modbus setting for example, changing parity from EVEN to NONE and then back to EVEN the communication will resume to all salves right away. But then again it will drop after few days.
Please help!
AB PLC->Prosoft Card(RS-232)->FO Converter(B&B)->FO Converter(B&B)->Serial Converter(to RS485)->4 Slave devices (EATON - Diesel Pumps).
Initially the communication works fine, but after few days it drops for all slave devices and when I go to one slave device and change any modbus setting for example, changing parity from EVEN to NONE and then back to EVEN the communication will resume to all salves right away. But then again it will drop after few days.
Please help!