41-621.1 HART
®
to Modbus
®
Adaptor Operating Manual
109
I.
HART over RS485 Communication Registers
Parameter
Data Type
Number of
Registers
Modbus Register
type
Modbus
Register
number
Values
Default
Floating Point Format
Code
UINT8
1
Holding
3000
0 - AB CD
1 - CD AB
2 - DC BA
3 - BA DC
Slave address
UINT8
1
Holding
3001
1 to 247
Protocol Type
UINT8
1
Holding
3002
2
4
No of Data bits
UINT8
1
Holding
3003
7 - 7 bits
8 - 8 bits
8
Stop bits
UINT8
1
Holding
3004
1 - 1 bit
2 - 2 bits
1
Parity
UINT8
1
Holding
3005
0 - None
1 - Odd
2 - Even
1
Baud rate
UINT8
1
Holding
3006
0 - 1200
1 - 2400
2 - 4800
3 - 9600
4 - 19200
0
HMA Mode
UINT8
1
Holding
3007
0 - HMA
1 - Device
1
Auto-switch to
HART over RS-485
UINT8
1
Holding
3008
0 - no switch
1 - switch
1
Reserved/
Unused
No of retries
(General)
UINT8
1
Holding
3010
0, 1, 2, 3
Reserved/Unused
Device Discovery
mode (DDM)
UINT8
1
Holding
3012
0 - Polled
1 - Saved
2 - Single
Polling Range
(if DDM = 0, 2)
UINT8
1
Holding
3013
0 - 0 only
1 - Find first only
2 - search 0-15
3 - search 0-31
4 - search 0-63
Summary of Contents for Jupiter JM4
Page 2: ......