We have a Prolinx Model 4205 (DNP ethernet slave to Modbus master) that intermittently stops responding to the DNP master requests. During the time that the Prolinx stops responding I am able to ping the Prolinx unit. Viewing the "Module Communication Statistics" through the web browser shows no DNP errors are indicated by the Prolinx unit. Eventually the DNP master will time out and begin sending reset link requests which appears to cause the Prolinx DNP slave to begin responding again.
1) What would cause the Prolinx DNP ethernet slave to stop responding to the DNP master?
2) Why doesn't the "Module Communication Statistics" screen indicate errors when this problem occurs?
Thank you.
