Dynasonics Fusion Water Flow Meter - Manual (Page 32)

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The flow rate is normalized to return 0 for min flow and 65535
for the maximum flow as specified in the system configuration for
Full Flow rate. (See page 23.)
Command: <addr><04><00><00><00><01><crc-16>
Reply: <addr><04><02><data HI><data LO><crc-16>
The totalizer returns the displayed value in four 8 bit words.
Command: <addr><04><00><02><00><02><crc-16>
Reply: <addr><04><04><MSW HI><MSW LO><LSW
HI><MSW LO><crc-16>
Opcode 05 – Force Single Coil
This opcode sets the state of a single coil (digital output).
The following Coil Registers are defined:
The transition of coil 9 from 0 to 1 will initiate function. This bit is
auto reset to 0, so there is no need to set it to 0 after a totalizer
reset command.
Command: <addr><05><00><08><FF><00><crc-16>
Reply:
<addr><05><00><08><FF><00><crc-16>
Coil # Description
1..8 Spare
9 Reset Totalizer
10.16 Spare