User Manual

42
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.