4
When the displayed value is between the output offset and output full scale value:
1. The output voltage = 10
(displayed rate - offset value)
(Full scale value - offset value)
V,
2. The output current = 16
(displayed rate - offset value)
(Full scale value - offset value)
mA + 4 mA
RS 485 Serial Communications Option Board
The optional serial communication board allows a host device to download and read
programming parameters and to read status information from the rate meter, such
as display value, relay status, etc.
This manual does not contain information on the serial communication protocol or
the serial command list. That information is contained in the 57700 serial specifica-
tion and is obtainable by contacting the Durant Literature Department at 800-540-
9242 (U.S. and Canada), or 920-261-4070, or by FAX at 920-261-9097.
DESCRIPTION cont.
