Alarm from 3-out-of-2 AI card
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Does an alarm from one of the three fault status lights on the 3-out-of-2 card indicate a fault in one of the channels? ? ?
Check whether the three displayed values are normal. Generally, two out of three are used for control logic. It should be displayed in all cases; if it is not visible on the screen, check the online configuration to see whether the displayed value is correct. If the fault point is located, an analog signal can be applied to determine whether it is a fault with the field instrument or a fault with the card.
I think so, but it’s best to check the instructions or ask the manufacturer.
The display of the surveillance footage is fine; it’s just that the card-related alarms occur frequently, but resetting it resolves the issue