Pax2c frequently used modbus registers – Red Lion PAX2C User Manual

Page 42

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PAX2C FREQUENTLY USED MODBUS REGISTERS

Only frequently used registers are shown below. The entire Modbus Register Table can be found at www.redlion.net and on the included flash drive.

Values less than 65,535 will be in (LO word). Values greater than 65,535 will continue into (Hi word). Negative values are represented by two’s complement of the

combined (Hi word) and (LO word).

Note 1: The PAX2C should not be powered down while parameters are being changed. Doing so may corrupt the non-volatile memory resulting in checksum errors.

REGISTER

ADDRESS

REGISTER NAME

LOW LIMIT

HIGH LIMIT

FACTORY

SETTING

ACCESS

COMMENTS

FREQUENTLY USED REGISTERS

40001

Process Value

N/A

N/A

N/A

Read

1 = 1 Display Unit

40002

Maximum Value

-1999

9999

N/A

Read

1 = 1 Display Unit

40003

Minimum Value

-1999

9999

N/A

Read

1 = 1 Display Unit

40004

Active Setpoint Value

-1999

9999

0

Read/Write 1 = 1 Display Unit

40005

Setpoint 1 Value

-1999

9999

0

Read/Write 1 = 1 Display Unit

40006

Setpoint 2 Value

-1999

9999

0

Read/Write 1 = 1 Display Unit

40007

Setpoint Deviation

N/A

N/A

N/A

Read Only

40008

Output Power

-1000

1000

N/A

Read/Write Output Power: Heat/Cool; * writable only in manual mode; 1 =

0.1%

40009

Active Proportional Band

0

9999

40

Read/Write 1 = 0.1 Display Unit

40010

Active Integral Time

0

65000

120

Read/Write 1 = 1 Display Unit

40011

Active Derivative Time

0

9999

30

Read/Write 1 = 0.1 Display Unit

40012

Active Power Filter

0

600

10

Read/Write 1 = 1 Display Unit

40013

Auto-Tune Code

0

4

2

Read/Write 0 = Very Aggressive, 1 = Aggressive, 2 = Default,

3 = Conservative, 4 = Very Conservative

40014

Auto-Tune Request

0

1

0

Read/Write 0 = Off, 1 = Invoke Auto-Tune

40015

Auto-Tune Phase

0

4

0

Read

0 = Off, 4 = Last Phase of Auto-Tune

40016

Auto-Tune Done

0

1

0

Read

1 = Successful Auto-Tune since last power cycle.

40017

Auto-Tune Fail

0

1

0

Read/Write

40018

Control Mode

0

1

0

Read/Write 0 = Automatic, 1 = Manual Mode

40019

Setpoint Selection

0

1

0

Read/Write 0 = Setpoint 1, 1 = Setpoint 2

40020

Remote/Local Setpoint Selection

0

1

0

Read/Write 0 = Local, 1 = Remote

40021

PID Parameter Selection

0

1

0

Read/Write 0 = Primary PID Values, 1 = Alternate PID Values

40022

Disable Integral Action

0

1

0

Read/Write 0 = Enabled, 1 = Disabled

40023

Disable Setpoint Ramping

0

1

0

Read/Write 0 = Enabled, 1 = Disabled

40024

Setpoint Ramping In Process

0

1

0

Read/Write 0 = Off, 1 = In Process

40025

Setpoint Ramp Rate Value

-1999

9999

0

Read/Write 1 = 1 Display Unit

40026

Alarm (1-16) Status Register

0

65535

0

Read

Bit 15 = A16, Bit 0 = A1

40027

Input Range Alarm

0

1

0

Read

40028

User Input Status

0

2

0

Read

Bit 1 = User Input 2, Bit 0 = User Input 1

40029

Digital Output Status

0

15

N/A

Read/Write

Status of Digital Outputs. Bit State: 0 = Off, 1 = On

Bit 3 = Out1, Bit 2 = Out2, Bit 1 = Out3, Bit 0 = Out4

Outputs can only be activated/reset with this register when the

respective bits in the Manual Mode Register (MMR) are set.

40030

Output Manual Mode Register (MMR)

0

31

0

Read/Write

Bit State: 0 = Auto Mode, 1 = Manual Mode

Bit 4 = DO1, Bit 3 = DO2, Bit 2 = DO3, Bit 1 = DO4,

Bit 0 = Linear Output

40031

Reset Output Register

0

15

0

Read/Write

Bit State: 1 = Reset Output, bit is returned to zero following

reset processing; Bit 3 = DO1, Bit 2 = DO2, Bit 1 = DO3,

Bit 0 = DO4

40032

Analog Output Register (AOR)

0

4095

0

Read/Write

Functional only if Linear Output is in Manual Mode.

(MMR bit 0 = 1)

Linear Output Card written to only if Linear Out (MMR bit 0) is

set.

40033

Active Alarm 1 Value

-1999

9999

0

Read/Write Active List (A or B)

40034

Active Alarm 2 Value

-1999

9999

0

Read/Write Active List (A or B)

40035

Active Alarm 3 Value

-1999

9999

0

Read/Write Active List (A or B)

40036

Active Alarm 4 Value

-1999

9999

0

Read/Write Active List (A or B)

40037

Active Alarm 5 Value

-1999

9999

0

Read/Write Active List (A or B)

40038

Active Alarm 6 Value

-1999

9999

0

Read/Write Active List (A or B)

40039

Active Alarm 7 Value

-1999

9999

0

Read/Write Active List (A or B)

40040

Active Alarm 8 Value

-1999

9999

0

Read/Write Active List (A or B)

40041

Active Alarm 9 Value

-1999

9999

0

Read/Write Active List (A or B)

40042

Active Alarm 10 Value

-1999

9999

0

Read/Write Active List (A or B)

40043

Active Alarm 11 Value

-1999

9999

0

Read/Write Active List (A or B)

40044

Active Alarm 12 Value

-1999

9999

0

Read/Write Active List (A or B)

40045

Active Alarm 13 Value

-1999

9999

0

Read/Write Active List (A or B)

40046

Active Alarm 14 Value

-1999

9999

0

Read/Write Active List (A or B)

40047

Active Alarm 15 Value

-1999

9999

0

Read/Write Active List (A or B)

40048

Active Alarm 16 Value

-1999

9999

0

Read/Write Active List (A or B)

40049

Active Alarm 1 Band/Dev. Value

-1999

9999

0

Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.

40050

Active Alarm 2 Band/Dev. Value

-1999

9999

0

Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.

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