ettikudiappan
Member
We are facing a point IO communication issue intermittently, once in 3 days. While running, the Network Status LED turns flashing red and the Point Bus status LED turns solid red. This is a symptom of wrong configuration of the number of ASCII modules connected to the point IO, but if this were the case the Point IO should always fault.
I changed the Point IO module itself (1734-AENT), the problem occured again. Then we changed the power supply, also same issue.
The Point IO has 5 modules connected to it, 2 RS485 and 3 RS232 modules. The RS485 modules are not used.
Anybody else faced the same issue? We have other POint IO in the plant that work perfectly well.
I changed the Point IO module itself (1734-AENT), the problem occured again. Then we changed the power supply, also same issue.
The Point IO has 5 modules connected to it, 2 RS485 and 3 RS232 modules. The RS485 modules are not used.
Anybody else faced the same issue? We have other POint IO in the plant that work perfectly well.