AW Gear Meters FEM-03 - Manual (Page 36)

FEM-03 Flow Monitor
Operation and Programming Manual
35
The answer received back from the FEM-03 will look like this:
A03E36712XXcr
^.............……….all answers start with A
^^...........……….low byte in Hex at address 0F34 (MSB)
^^.........……….next byte in Hex at address 0F35
^^....………....next byte in Hex at address 0F36
^^.....………..high byte in Hex at address 0F37 (LSB)
^^...………...checksum
..………….carriage return ends the string
The protocol format for writing to the FEM-03 is as follows:
>01J03340F3587XXcr
^..................…………start of string must use the > sign
^^...............…………..unit number 1 to 200 (01H to C8H)
^..............…………....write/write command, J for write
^^^^..........……………address to write into
^^.....…………..…..byte written in Hex to 0334 (MSB)
^^....………….……byte written in Hex to 0335
^^...………….…….byte written in Hex to 0336 (LSB)
^^..………….……...checksum (in Hex, LSB of string checksum)
.………….….……carriage return
If the write was successful, the answer received back from the FEM-03 looks like this:
Acr.
^..................………Acknowledged write operation
...............…………..carriage return