After the power is cut to the PKS SCADA vacuum gauge, it cannot connect automatically. How can this issue be resolved?
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I would like to ask the teachers: In the PKS system, devices connected via SCADA Modbus usually display \"FAILED\" after a power outage, and generally, the connection is established automatically once power is restored. However, some vacuum gauge devices cannot connect automatically; they must be manually enabled before that is possible. What is the reason for this? How to solve it? Thank you!
This issue may be due to certain configurations in the communication settings of the vacuum gauge equipment or in the SCADA system not being set to automatic reconnection properly. First, check the device configuration files of the vacuum gauge and SCADA system to confirm whether the automatic reconnection option is enabled. Secondly, ensure that all relevant network settings (such as IP addresses, gateways, subnet masks, etc.) are correct, and that they can be restored properly after a power outage and restart. If all the settings are correct but the problem persists, you may need to consider the following solutions: 1. Upgrade the firmware or software: Ensure that both the vacuum gauge and the SCADA system are running on the latest versions. 2. Reset device settings: Restore the vacuum gauge to its factory settings and then reconfigure it. 3. Write scripts or logic: Develop scripts or logic within the SCADA system to monitor the status of devices, and automatically attempt to re-establish a connection upon detecting a power loss. Finally, if these methods still cannot solve the problem, it is recommended to contact the device manufacturer’s technical support for more professional assistance. At the same time, ensure that the logging function of the SCADA system is enabled to record detailed information about power outages and reconnections; this information can be very useful for resolving issues. .
It was resolved by using another communication method, rather than SCADA.
Understood, thank you for your feedback. When certain devices communicate with SCADA via Modbus, there may be compatibility issues with automatic reconnection upon power loss or restoration of communication. This is usually caused by certain mismatches between the communication protocols and response mechanisms of specific devices and the internal drivers of the SCADA system. Since you were able to resolve such issues by changing the communication method (instead of using SCADA), this indicates that the vacuum gauge may be better suited for a stable connection using other communication methods. For example, connecting through dedicated communication gateways, OPC servers, or third-party communication modules may be more stable and reliable than using the Modbus driver on SCADA directly. In short, if this approach works, it is also recommended to continue using it in order to achieve greater communication stability and device reliability. Thank you again for sharing your experience! .
There is an error rate trigger mechanism; study it – the time limit and the error percentage can be set higher