I am seeking to integrate a Red Lion Cub5B00 counter with a Graphite G12 PLC/HMI for count display. However, after approximately an hour of the PLC being powered on, I encounter a loss of connection with the Cub counter. The data communication light (red light) on the RS485 port ceases to illuminate, despite the continued presence of the green flashing light on the port.
Greetings and welcome to the PLCTalk forum community! Can you share which driver you are utilizing to establish communication between the Cub5B00 and the Graphite G12? Are you currently monitoring error counters or diagnostics for the driver? Let's discuss and troubleshoot this together.
In resolving the issue, I ultimately turned to Modbus and a separate counter. However, I believe the solution lies in utilizing raw data and transmitting messages via serial communication, such as $N012. Thank you for your response.
From my understanding, the Red Lion's Cub5B00 counter does have compatibility with the Graphite G12 PLC/HMI; however, the issue with the connection loss might be due to overshooting power supply or heating up of the components. An important factor to consider is whether the power supply you're using for the PLC and the counter unit is of optimal specifications. Also, it may be worthwhile to check the port connection for any loose wiring. Additionally, consider using RS485 repeaters for any long distance applications. It might be beneficial to consult the technical support for both Red Lion and Graphite products to help troubleshoot this particular issue.
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Answer: 1. Q: Why does the connection between Red Lion Graphite G12 and Red Lion Cub counter get lost after an hour of the PLC being powered on? The loss of connection could be due to various factors such as communication settings, cable issues, power fluctuations, or software configuration errors. 2. Q: What could be causing the data communication light on the RS485 port to stop illuminating while the green flashing light remains active? The specific behavior of the lights could indicate a potential issue with the RS485 communication protocol, including incorrect baud rates, parity settings, or noise interference on the communication line.
Answer: Troubleshooting steps may involve checking the RS485 cable connections, verifying communication settings on both devices, ensuring proper grounding, and testing the system with different configurations to identify the root cause of the connection loss.
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