Modbus Register Assignments
7
Section 7 - DP606A and DP612A Modbus Register Assignments
All accesses to the DP606A and DP612A database information is made thru the
following Modbus registers.
Data types:
R – single 16 bit register (may be Boolean, byte, char, int16 or uint16 data)
L – dual (32 bit) register (may be int32 or uint32 data)
F – IEEE Floating point value
B – Byte Array
All data is transferred using Big Endian formatting, where the most significant byte
is transmitted first.
Section 7.1 - System Registers
Index
Mnemonic
Type Access
Description
0x0000
40000
Layout Version
R
R
Hardware layout version
0x0001
40001
Device Description
R
R
Device description
0x0002
40002
FW Version Major Minor
R
R
First two octets of Firmware Version
0x0003
40003
FW Version Minor Fix
R
R
Last two octets of Firmware Version
0x0004
40004
HW Version
R
R
Hardware version
0x0005
40005
Max Zones
R
R
Max zones supported by device
0x0006
40006
Temperature Scale
R
RW
Select Fahrenheit or Celsius degree
0x0007
40007
Sensor Type
R
RW
Enumerated sensor type
0x0008
40008
Sensor Subtype
R
RW
Enumerated sensor sub-type
0x0009
40009
Password
R
RW
4 digit password
0x000a
40010
Modbus Address
R
RW
Device address on the bus.
0x000b
40011
Scan Time Second
R
RW
Display time per zone in seconds
0x000c
40012
Active Zone
R
RW
Bitmap of currently active zone
0x000d
40013
Hours Operation
R
RW
Accumulated hours of operation
0x0013
40019
Factory Default
R
RW
Reset device to factory default
0x0015
40021
System State
R
RW
Enumerated system state
0x0018
40024
System Alarm Type
R
RW
Enumerated alarm type
0x0019
40025
System Alarm Latch
R
RW
Enumerated setting toggle
0x001A
40026
Password Enable
R
RW
Enumerated toggle setting
0x001b
40027
Decimal Point
R
RW
Enumerated decimal point setting
Table 11 - System Registers
23