red lion PAXDP, User Manual, Page: 22 / 32

22
PAXDP FREQUENTLY USED MODBUS REGISTERS
Only frequently used registers are shown below. The entire Modbus Register Table can be found at www.redlion.net. The below limits are shown as Integers or
HEX < > values. Read and write functions can be performed in either Integers or Hex as long as the conversion was done correctly. Negative numbers are represented
by two’s complement.
Note: The PAXDP should not be powered down while parameters are being changed. Doing so may corrupt the non-volatile memory resulting in checksum errors.
1
For Input Registers, replace the 4xxxx with a 3xxxx in the above register address. The 3xxxx are a mirror of the 4xxxx Holding Registers.
2
An attempt to exceed a limit will set the register to its high or low limit value.
Bit State: 1= Reset Output; Bit is returned to zero
following reset processing
Bit 3 = SP1, Bit 2 = SP2, Bit 1 = SP3, Bit 0 = SP4
Status of Setpoint Outputs: Bit State: 0=Off, 1=On,
Bit 3 = SP1, Bit 2 = SP2, Bit 1 = SP3, Bit 0 = SP4
Outputs can only be activated/reset with this register
when respective bits in Manual Mode (MMR) register
are set
Bit State: 0=Auto Mode, 1=Manual Mode
Bit 4 = SP1, Bit 3 = SP2, Bit 2 = SP3, Bit 1 = SP4,
Bit 0 = Linear Output
Functional only if Linear Output is in manual mode
(MMR bit 0 = 1). Linear Output Card is written to only
if Linear Out (MMR bit 0) is set
Gross value of present Input A level. This value is
affected by Input Type, Resolution, Scaling, but not
affected by Offset Value
Gross value of present Input B level. This value is
affected by Input Type, Resolution, Scaling, but not
affected by Offset Value
Relative Input Value (standard meter value) is sum of
Input Offset Value and Input Absolute Value
Setpoint List B
Setpoint List A
Setpoint List A
Setpoint List A
Setpoint List A
Relative Input Value (standard meter value) is sum of
Input Offset Value and Input Absolute Value
Input B Relative Value (Lo word)
REGISTER
ADDRESS
1
REGISTER NAME LOW LIMIT
2
HIGH LIMIT
2
FACTORY
SETTING
ACCESS COMMENTS
FREQUENTLY USED REGISTERS
40001
40002
Input A Relative Value (Hi word)
Input A Relative Value (Lo word)
N/A N/A N/A Read Only
40003 Input B Relative Value (Hi word)
N/A N/A N/A Read Only
40004
40005
40006
40007
40009
40011
40013
40017
40015
40019
40008
40010
40012
40014
40018
40016
40020
Calculation Value (Hi word)
Calculation Value (Lo word)
Maximum Value (Hi word)
Minimum Value (Hi word)
Total Value (Hi word)
Setpoint 1 Value (Hi word)
Setpoint 3 Value (Hi word)
Setpoint 2 Value (Hi word)
Setpoint 4 Value (Hi word)
Maximum Value (Lo word)
Minimum Value (Lo word)
Total Value (Lo word)
Setpoint 1 Value (Lo word)
Setpoint 3 Value (Lo word)
Setpoint 2 Value (Lo word)
Setpoint 4 Value (Lo word)
N/A
-19999
-19999
-199999000
-19999
-19999
-19999
-19999
N/A
99999
99999
999999000
99999
99999
99999
99999
N/A
N/A
N/A
N/A
100
300
200
400
Read Only
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
40021
40022
40023
40024
40025
40027
40026
40028
40029
40041
40039
40035
40037
40033
40031
40030
40042
40040
40036
40038
40034
40032
Setpoint Output Register (SOR)
Manual Mode Register (MMR)
Reset Output Register
Analog Output Register (AOR)
Input A Absolute Value (Hi word)
Input B Absolute Value (Hi word)
Input A Absolute Value (Lo word)
Input B Absolute Value (Lo word)
Input A Offset Value (Hi word)
Alternate Setpoint 1 Value (Hi word)
Main Setpoint 4 Value (Hi word)
Main Setpoint 2 Value (Hi word)
Main Setpoint 3 Value (Hi word)
Main Setpoint 1 Value (Hi word)
Input B Offset Value (Hi word)
Input A Offset Value (Lo word)
Alternate Setpoint 1 Value (Lo word)
Main Setpoint 4 Value (Lo word)
Main Setpoint 2 Value (Lo word)
Main Setpoint 3 Value (Lo word)
Main Setpoint 1 Value (Lo word)
Input B Offset Value (Lo word)
0
0
0
0
N/A
N/A
-19999
-19999
-19999
-19999
-19999
-19999
-19999
15
31
15
4095
N/A
N/A
99999
99999
99999
99999
99999
99999
99999
N/A
0
0
0
N/A
N/A
0
100
400
200
300
100
0
Read/Write
See Note
Read/Write
Read/Write
Read/Write
Read Only
Read Only
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Calculation Result of Math Function
Process value of present input level. This value is
affected by Input Type, Resolution, Scaling & Offset Value
(Relative Value = Absolute Input Value + Offset Value)
Process value of present input level. This value is
affected by Input Type, Resolution, Scaling & Offset Value
(Relative Value = Absolute Input Value + Offset Value)