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.
There might be a couple of things causing the issue. Firstly, there could be a heat issue related to the PLC, or its power source, causing failure after operating for a prolonged period of time. Also, there could be an incompatibility between the PLC and counter communication protocols. Although both use RS485, they might have different data framing or handshaking rules. I would suggest looking into the specifications of each device, comparing them, and maybe testing various workarounds. Also, it wouldn't hurt to reach out to Red Lion's support for detailed help!
That sounds like a bit of a frustrating situation you're dealing with. Since the issue becomes apparent after around an hour, it seems like it might be related to a timing issue or certain components getting overheated. You might want to check the power supply stability to your devices - fluctuations can sometimes induce such behavior. Also, try to analyze any patterns in the loss of signal - does it correspond with any particular operations or events? Lastly, make sure the RS485 port settings match across all your devices, and perhaps consider isolating the Cub counter from other devices to see if there's any interference.
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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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