-43-
Released 2018-01-12 Drawing No. LP0932
The following is an example of the necessary query and corresponding response for holding register 2. In this example register 2 is the decimal value
123.
Query: 01 03 00 01 00 01 D5 CA
Response: 01 03 02 00 7B F8 67
Notes:
1. The PXU registers can be read as holding (4x) or input (3x) registers.
2. The PXU should not be powered down while parameters are being changed. Doing so may result in an incomplete write to the non-volatile memory
and produce checksum errors.
REGISTER
(4x)
REGISTER NAME LOW LIMIT HIGH LIMIT
FACTORY
SETTING
ACCESS COMMENTS
FREQUENTLY USED REGISTERS
1 Process Value (PV) N/A N/A N/A Read Only 1 = 1 Display unit
2 Active Setpoint (SP) -999 9999 0 Read/Write 1 = 1 Display unit
3 Setpoint 1 (SP1) -999 9999 0 Read/Write 1 = 1 Display unit
4 Setpoint 2 (SP2) -999 9999 0 Read/Write 1 = 1 Display unit
5 Setpoint Deviation N/A N/A N/A Read Only 1 = 1 Display unit
6 Alarm 1 Value -999 9999 1000 Read/Write 1 = 1 Display unit
7 Alarm 2 Value -999 9999 2000 Read/Write 1 = 1 Display unit
8 Alarm 3 Value -999 9999 3000 Read/Write 1 = 1 Display unit
9 Output Power 1 0 1000 0 Read/Write 1 = 0.1%; writable when in manual mode only.
10 Output Power 2 0 1000 0 Read/Write 1 = 0.1%; writable when in manual mode only.
11 PB Proportional band (Active) 1
999(.9)° or
9999 (process)
700 Read/Write 1 = 1 Display unit
12 Integral time (Active) 0 9999 120 Read/Write 1 = 1 second
13 Derivative time (Active) 0 9999 30 Read/Write 1 = 1 second
14 Integration default (Active) 0 1000 0 Read/Write 1 = 0.1 % output power
15 PID parameter set selection 0 6 0 Read/Write
0 = PID Set 1, 1 = PID Set 2, 2 = PID Set 3, 3 = PID
Set 4, 4 = PID Set 5, 5 = PID Set 6, 6 = Auto
16 Auto-Tune Start 0 1 0 Read/Write 0 = No; 1 = Yes
17 Control Mode Transfer (Auto/Manual) 0 1 0 Read/Write 0 = Automatic (PID), 1 = User (Manual Mode)
18 Controller Status 0 4 1 Read/Write
0: Stop, 1: Run, 2 = End (Profile mode), 3 = Pause
(Profile mode), 4 = Advance Profile (Profile mode)
19 Setpoint Select 0 1 0 Read/Write 0 = SP1, 1 = SP2
20 SP Ramp Rate 0
999(.9)° or
9999 (process)
0 Read/Write 1 = 1 Display unit/minute; 0 = Ramping disabled
21 LED Status N/A N/A N/A Read Only
Bit State: 0 = Off, 1 = On
b0: ALM3, b1: ALM2, b2: °F, b3: °C, b4: ALM1, b5:
OUT2, b6: OUT1, b7: AT
22 Pushbutton Status N/A N/A N/A Read Only
Bit State: 0 = Key pressed, 1 = Key not pressed
b0: N/A, b1: F2, b2: Down, b3: P, b4: N/A, b5: F1, b6:
Up, b7: D
23 Alarm Reset 0 7 0 Read/Write
Bit State: 1 = reset alarm, bit is returned to zero
following reset
b0: Reset Alm1, b1: Reset Alm2, b3: Reset Alm3
24 Setpoint Ramping Disable 0 1 0 Read/Write 0 = Enabled, 1 = Disabled
25 Integral Action Disable 0 1 0 Read/Write 0 = Enabled, 1 = Disabled
26 Current Profile
27 Current Profile Segment 0 15 0 Read Only
28 Profile Segment Remaining Time 0 15 0 Read/Write 1 = 0.1 Minute?
29 Starting Profile Number 0 15 0 Read/Write
30 Starting Segment Number 0 15 0 Read/Write
PID PARAMETERS
33 Proportional band 1 1
999(.9)° or
9999 (process)
700 Read/Write 1 = 1 Display unit
34 Integral time 1 0 9999 120 Read/Write 1 = 1 second