Model: S20360-SRS
Origin: USA
Warranty: One year

Marketable location: Nationwide

Application: Various spare parts such as branded PLCs, DCS modules, cards, drivers, etc

When the telemetry data does not match the device, the automation personnel first observe on the maintenance workstation whether all telemetry data of the substation can be refreshed. If none of them are refreshed, it can be judged as a communication interruption between the plant and the station, and the communication interruption method should be used to handle it. If it is only a single telemetry data error, observe whether the data can be updated first. If it cannot be updated, it can be judged as a fault of the line measurement and control device, and notify the maintenance department for processing in a timely manner. If there is an update but the value does not match the on-site device, the following methods can be used to handle it: (1) Check whether the correlation of telemetry is correct, and if there is an error, it needs to be. (2) Check if the telemetry coefficient settings are correct. If not, modify the database coefficients using the configuration tool

(3) Check if the telemetry point numbers in the database correspond one-to-one with the telemetry sequence table sent by the remote machine. If they do not correspond, the telemetry point numbers on the main station end need to be modified in the configuration tool. (4) If it is a calculation quantity, it is necessary to check whether the calculation formula is correct. If the formula is incorrect, it needs to be corrected again. (5) If a remote measurement with upper and lower limit values is set, it is necessary to check whether the upper and lower limit values are set reasonably. If they are set incorrectly, normal data may be filtered, and the upper and lower limit values of the remote measurement need to be modified again using configuration tools. (6) Check the system data for errors, use the pre communication channel detection function to check the data packet, and if there are errors, handle them according to the error fault method< br />6ES7962-3AA00-0​AC0 SIEMENS SIMATIC S7-400 ST74 6ES796

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