Dover OPW 88 Series - Modbus

Rack Monitor 88XX
Document: Operation Manual
Date: January 2024
Version: A.0 subject to change
Page 33 of 43 – Operations Manual
Modbus
Two register tables are available due compatibility with previous systems. Below is the old and brief defined
register table.
This information will be available in register 20A to 21A.
Serial communication is available via the RS485 port with a pre-settable baud-rate see Error! Reference source n
ot found..
The Vehicle Serial Number registers contain the currently-connected truck’s “serial number”, if any. A value of 0x00
means there is no readable serial truck number, a value of 0xFFFFFFFFFFFF means the serial number hasn’t been
determined yet.
The layout of the truck’s serial number in the three Truck Serial Number registers is:
The truck status register contains relevant data of the connected Truck.
Truck Status Register 21A
Reg.
Name
Dir
Storage
Description
20A-20C
Truck Serial Number
R
Dynamic
48-Bit Truck ID/serial number
20D-214
Sensor State Bytes
R
Dynamic
Individual tank/sensor state (one byte per
sensor/channel)
21A
Truck Status
R
Dynamic
Flags indicating Truck status
Vehicle Id. Register 20A~20C
MSB
LSB
MSB
LSB
MSB
LSB
Register 20A
Register 20B
Register 20C
S/N MSB
Vehicle ID
S/N LSB
Sensor
Register 20D
State
1
Register 20E
Register 20F
MSB
LSB
MSB
LSB
MSB
LSB
Register 210
MSB
LSB
State
2
State
3
State
4
State
5
State
6
State
7
State
8
Register 211
State
9
Register 212
Register 213
MSB
LSB
MSB
LSB
MSB
LSB
Register 214
MSB
LSB
State
10
State
11
State
12
State
13
State
14
State
15
State
16
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor