lanry Ultrawater, Operation & Maintenance Manual

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Display & Output Model
c) RS485 Settings
Baud rates
– Support Baud rates from 4800 to 19200
Data Bits
– 8 data bits (7 data bits is not valid setting for Modbus RTU)
Parity Bits
– Even, Odd and None
Stop Bits
– 1
Default settings will be 9600,8,N,1 .
d) Modbus Registers
The below list of parameters will all be located in the holding registers.
Register
address
Size
(Reg)
Mode/Access Data Type Description
00 4 Read only float Velocity
02 4 Read only float Flow rate
04 8 Read only double64 Net accumulation
08 8 Read only double64 Positive cumulation
12 8 Read only double64 Negative cumulation
16 4 Read only hh/mm/ss Time in BCD format
18 4 Read only yy/mm/dd Date in BCD format
20 4 Read only uint Device state
22 4 Read only uint ESN
24 8 Read only double64 Net accumulation for special date
28 8 Read only double64 Pos accumulation for special date
32 8 Read only double64 Neg accumulation for special date
36 4 Read/Write yy/mm/dd Set special date in BCD format
38 4 Read/Write uint Display control
40 4 Read/Write uint Rs485 control
42 4 Read/Write uint User control
48 4 Read/Write uint RS485 Retention time
50 4 Read/Write float Battery level
52 4 Read/Write float Software version
62 4 Read only float Pipe lose parameter