Red Lion PXU - Manual (Page 29)

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PXU MODBUS REGISTER TABLE 10/23/2013
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 1: The PXU 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 (PV) N/A N/A N/A Read Only 1 = 1 Display unit
40002 Active Setpoint (SP) -999 9999 0 Read/Write 1 = 1 Display unit
40003 Setpoint 1 (SP1) -999 9999 0 Read/Write 1 = 1 Display unit
40004 Setpoint 2 (SP2) -999 9999 0 Read/Write 1 = 1 Display unit
40005 Setpoint Deviation N/A N/A N/A Read Only 1 = 1 Display unit
40006 Alarm 1 Value -999 9999 100 Read/Write 1 = 1 Display unit
40007 Alarm 2 Value -999 9999 200 Read/Write 1 = 1 Display unit
40008 Alarm 3 Value -999 9999 300 Read/Write 1 = 1 Display unit
40009 Output Power 1 0 1000 0 Read/Write 1 = 0.1%; writable when in manual mode only.
40010 Output Power 2 0 1000 0 Read/Write 1 = 0.1%; writable when in manual mode only.
40011 PB Proportional band (Active) 1
999(.9)° or
9999 (process)
70 Read/Write 1 = 1 Display unit
40012 Integral time (Active) 0 9999 120 Read/Write 1 = 1 second
40013 Derivative time (Active) 0 9999 30 Read/Write 1 = 1 second
40014 Integration default (Active) 0 1000 0 Read/Write 1 = 0.1 % output power
40015 PID parameter set selection 0 1 0 Read/Write 0 = PID Set 1, 1 = PID Set 2
40016 Auto-Tune Start 0 1 0 Read/Write 0 = No; 1 = Yes
40017 Control Mode Transfer (Auto/Manual) 0 1 0 Read/Write 0 = Automatic (PID), 1 = User (Manual Mode)
40018 Controller Status 0 1 1 Read/Write 0: Stop, 1: Run
40019 Setpoint Select 0 1 0 Read/Write 0 = SP1, 1 = SP2
40020 SP Ramp Rate 0
999(.9)° or
9999 (process)
0 Read/Write 1 = 1 Display unit/minute; 0 = Ramping disabled
40021 LED Status N/A N/A N/A Read Only
Bit State: 0 = Off, 1 = On
b7: AT, b6:OUT1, b5: OUT2, b4: ALM1, b3: °C, b2:
°F, b1: ALM2, b0: ALM3
40022 Pushbutton Status N/A N/A N/A Read Only
Bit State: 0 = Key pressed, 1 = Key not pressed
b7: D, b6: Up, b5: F1, b4: N/A, b3: P, b2: Down, b1:
F2, b0: N/A
40023 Alarm Reset 0 7 0 Read/Write
Bit State: 1 = reset alarm, bit is returned to zero
following reset
b3: Reset Alm3, b1: Reset Alm2, b0: Reset Alm1
40024 Setpoint Ramping Disable 0 1 0 Read/Write 0 = Enabled, 1 = Disabled
40025 Integral Action Disable 0 1 0 Read/Write 0 = Enabled, 1 = Disabled
PID PARAMETERS
40033 Proportional band 1 1
999(.9)° or
9999 (process)
70 Read/Write 1 = 1 Display unit
40034 Integral time 1 0 9999 120 Read/Write 1 = 1 second
40035 Derivative time 1 0 9999 30 Read/Write 1 = 1 second
40036 Integration default 1 0 1000 0 Read/Write 1 = 0.1 %
40037 Proportional band 2 1
999(.9)° or
9999 (process)
70 Read/Write 1 = 1 Display unit
40038 Integral time 2 0 9999 120 Read/Write 1 = 1 second
40039 Derivative time 2 0 9999 30 Read/Write 1 = 1 second
40040 Integration default 2 0 1000 0 Read/Write 1 = 0.1 %
40041 Output Power Offset 0 1000 500 Read/Write 1 = 0.1 % output power
INPUT PARAMETERS
40051 Input Type 0 19 1 Read/Write
0 = tc-K 1 = tc-J 2 = tc-t 3 = tc-E 4 = tc-N
5 = tc-r 6 = tc-S 7 = tc-b 8 = tc-L 9 = tc-U
10 = tc-txk 11 = r392 12 = r385 13 = n1
14 = cu50 15 = 5v 16 = 10v 17 = 0-20mA
18 = 4-20mA 19 = 0.05v
40052 Temperature Scale 0 1 0 Read/Write 0 = °F, 1 = °C