RS485 alarm if the other device does not respond in certain time

[admin]

Is the device constantly sending data or do you need to poll for it? For polling you should not use 0 sleep time. If you increase the sleep time then the number of errors for the alert should be adjusted accordingly. If the device doesn't respond then each cycle time = sleep time + timeout value. If you poll every 2 seconds with 3 second timeout then the whole cycle is 5 seconds. Then the counter value of 60 equals 5 minutes.