CI867 - Modbus TCP error code -7006 (slave is a PC software)
We have problem with a Modbus TCP connected through CI867.
1. When we connect the CI867 DIRECT to the slave, it indicate error -7006
2. We try to troubleshoot by connect slave to modscan32, the modscan32 can read the data from slave
3. When we connect the CI867 to a Modbus ETh TCP-IP PLC Simulator, it also can read the data from the simulatior
Please see attachment for detail and advise the solution.
Thanks and Kind Regards
the Control Builder help for MBTCPRead says:
"There is no response from the slave. The parameter by the name "timeout time" is configured in the Control Builder. The range is 500 to 6000 ms."
for -7006 status code.
Please check if the timeout time on Modbus TCP Slave->timeout time is enough to the Modbus TCP Server respond the query. Try to increase it.