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23

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 byInputType,Resolution,Scaling& OffsetValue

(Relative Value = Absolute Input Value + Offset Value)

Process value of present input level. This value is

affected byInputType,Resolution,Scaling& OffsetValue

(Relative Value = Absolute Input Value + Offset Value)