There are many Analog input instance used in customer’s project. Customer finds that after transferring the application or power cycle the CPU, the evaluation of an alarm conditions will be disabled. Since that customer need to enable the alarm by clicking the alarm enable switch on the Analog Input faceplate every time.
Since that, how to enable the alarm automatically after transferring the application or power cycle the CPU
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Please refer to AALARM_CFGW as the below screenshot indicates. Bit0 to Bit4 of the configuration word are used to enable or disable the alarm switch on the AnalogInput faceplate.
Customer can set the value of the configuration word to “31”. And you will find the evaluation of an alarm conditions will always be enabled.