Setup Messages Chapter Five: Remote RS-232 Operation
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1 = Open valve at power failure
2 = Close valve at power failure
To check the direction of the valve battery back-up control, issue the request:
R 40
The controller responds with the message [K value], where:
value: 0 = Option disabled
1 = Valve opens at power failure
2 = Valve closes at power failure
An example response, if the valve is set to open upon a power failure, is:
K 1
To change the valve control so that it closes upon a power failure, enter:
K 2