ABB AquaMaster 3, Manual

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AquaMaster 3
Electromagnetic flowmeter
MODBUS Tables Supplement COI/FET2XX/MOD/TBL-EN 7
MODBUS Protocol
Request Message (Hex) Response Message (Hex) =char Error Message (Hex)
byte19 00
byte20 00
byte21 00
byte22 00
byte23 00
byte24 00
byte25 00
byte26 00
byte27 00
byte28 00
byte29 00
byte30 00
byte31 00
byte32 00
byte33 00
byte34 00
byte35 00
CRC 2c
CRC ce
1.3.5 RO 32-Bit
Read-only access to 32-bit types.
Each AquaMaster 3 32-Bit type requires 2 MODBUS Registers (4 bytes). Consequently, RO 32-Bit
Register addresses are assigned at intervals of 2 and the Request Message must provide Quantity of
Inputs in multiples of 2.
32-Bit quantities are arranged in big-endian order.
Read Input Registers 4013 to 4014
var207 – Transmitter Unique ID
Request Message (Hex) Response Message (Hex) Error Message (Hex)
Address 01 Address 01 Function 84
Function 04 Function 04 Exception Code Exception Code
Starting Address Hi 0f Byte Count 04
Starting Address Lo ac H Register Value Hi 00
Quantity of Inputs Hi 00 H Register Value Lo 00
Quantity of Inputs Lo 02 L Register Value Hi 00
CRC b2 L Register Value Lo 1b
=27
CRC fe CRC bb
CRC 8f