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System Sentry Devices Screen
About this task
The Devices screen provides statistics concerning the communication to a factory device.
todo:To choose a device for evaluation:
Procedure
Click the button to the right of the Device ID bar.
The Select a Device dialog box opens.
Select the device to be evaluated.
guide:Guidelines for reading the Devices screen include:
Review the number of transmissions per second (Transm/Sec) and responses per second (Resp/Sec) to and from the device are meeting your polling requirements.
Make sure Failures and Retries are zero. Non-zero values indicate a problem. They could indicate that the device is being turned off or the communication link to the device is periodically failing.
Check the Skipped Polls to determine if too many points are being polled too fast. If they are, you will need to reduce the polling rate to a rate that can be sustained by the communication media and PLC.