We are using Quantum Automation series PLC system with modbus that connected to IOs with Remote IO system.
Our CPU modal: 140CPU 113 03 controller and CRP 931 00 RIO head, CRA 931 00 RIO drop for remote controller. Remote IO having 3 racks and RG6 co-axial cable used for communication purpose for Wartsila diesel Engine power plant of total 7 units individual CPU control and common control PLC unit connected with operator interface system.

Our problem Frequently communication failure between remote rack RG6 co-axial cable connection connector. How to prevent and give valuable suggestions and any maintenance schedule.

Please send your comments about it.

Regards,

ganapathy,K.R.
Lead Engineer,
Covanta samalpatti operating PVT ltd.
TamilNadu,
India.

 

Hello.
We are using the same control equipment in 5 wartsila diesel engines.
We have the same problem.
If you have some suggestion to solve this problem,
I really appreciate your help.
Best Regards.

Carlos Aguilar
Control Engineer
Cartones Ponderosa
San Juan del Río, Querétaro.
Mexico.

> We are using Quantum Automation series PLC system with modbus that connected to IOs with Remote IO system.
> Our CPU modal: 140CPU 113 03 controller and CRP 931 00 RIO head, CRA 931 00 RIO drop for remote controller. Remote IO
> having 3 racks and RG6 co-axial cable used for communication purpose for Wartsila diesel Engine power plant of
> total 7 units individual CPU control and common control PLC unit connected with operator interface system.

> Our problem Frequently communication failure between remote rack RG6 co-axial cable connection connector. How to
> prevent and give valuable suggestions and any maintenance schedule.

> Please send your comments about it.

 

What software? Proworx, Concept or Unity?

RIO is proven and robust system. Most errors are the result of using wrong cables (very common), wrong components (not using splitters etc), no terminations and poor wiring. It is common for wires to "touch" when stripping and fitting connectors to coax.

Also, you can configure and physically set drops with "gaps" such as 2, 3, 6, 8, 10. But if you then try to address drop 4, you will have major issues. Ensure mapping matches reality.