WEST P4100 - Page 71

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-DIN,
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- DIN Controllers & Indicators - Product Manual
Page 52 P6100, P8100 & P4100 Model Group 59305, Issue 5 – March 2005
Parameter Modbus
Parameter No.
ASCII Ident &
Message Types
Notes
Deviation
4
RO
V
Type 2
RO
Difference between Process Variable
and Setpoint (value = PV-SP)
Secondary
Proportional Band
5
R/W
U
Type 2, 3/4
R/W
Adjustable 0.0% to 999.9% of input
span. Read only when Self-Tuning.
Primary
Proportional Band
6
R/W
P
Type 2, 3/4
R/W
Adjustable 0.0% to 999.9% of input
span. Read only when Self-Tuning.
Direct / Reverse
Acting
7
R/W 1 = Direct Acting, 0 = Reverse
Automatic Reset
Time
(or Loop Alarm
Time)
8
R/W
I
Type 2, 3/4
R/W
Integral Time Constant value.
(or Loop Alarm Time value in ON/OFF
control mode if Loop Alarm Enabled)
Read only if Self-Tuning.
ASCII range: 0 to 99m 59sec (99.59)
Modbus range: 0 to 5999
Rate
9
R/W
D
Type 2, 3/4
R/W
Derivative Time Constant value.
Read only if Self-Tuning.
ASCII range: 0 to 99m 59secs. (99.59)
Modbus range: 0 to 5999
Output 1
Cycle time
10
R/W
N
Type 2
Type 3/4
RO
R/W
0.5, 1, 2, 4, 8, 16, 32, 64,128, 256 or
512 seconds.
Scale Range
Lower Limit
11
R/W
H
Type 2
Type 3/4
RO
R/W
Lower limit of scaled input range
Scale Range
Upper Limit
12
R/W
G
Type 2
Type 3/4
RO
R/W
Upper limit of scaled input range
Alarm 1 Value
13
R/W
C
Type 2, 3/4
R/W
Alarm 1 active at this level
Alarm 2 Value
14
R/W
E
Type 2, 3/4
R/W
Alarm 2 active at this level
Manual Reset
15
R/W
J
Type 2, 3/4
R/W
Bias value. 0% to 100% for single
control output or
-100% to +100% for dual outputs
Overlap /
Deadband
16
R/W
K
Type 2, 3/4
R/W
20% to +20% of
-RB- + -RB:;
Negative value = Deadband
Positive value = Overlap
On / Off Differential
17
R/W
F
Type 2, 3/4
R/W
0.1% to 10.0% of input span
Used for Primary output on/off
differential and for combined Primary
and Secondary on/off differential.
Decimal Point
Position
18
R/W
Q
Type 2
Type 3/4
RO
R/W
0 = xxxx
1 = xxx.x
2 = xx.xx
3 = x.xxx
Read only if not Linear Input.