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Modbus Accessible Parameter Mapping. The customized controller allows access to (29)
controller parameters and settings, which can be accessed in Integer Mode or Floating point
mode. This is accomplished with (2) Point Address ranges, allowing data exchange in either
integer or floating point format, for all controller parameters and settings. All data conversion
such as rounding, integer float, Etc, is transparent and handled by the controllers,
since
internal
variables data type can be different for the MODBUS data exchange types.
The Advanced and M2B+ controllers are customized controller software supports the
following Modbus Parameters and Settings:
Figure 4: Modbus Parameters List
Parameter
/ Item
Index
R/W
Integer
Data
Region
Point
Address
Float
Data
Region
Point
Address
Min
Value
Max
Value
Description
0
R
0000
4000
0
0
Version ID (4369)
1
R
0001
4002
-34
343
Delivery Temp (ºC)
2
R
0002
4004
-34
343
Mold Temp (ºC)
3
R
0003
4006
-34
343
Return Temp (ºC)
4
R
0004
4008
0
999
Flow Value
5
R/W
0005
4010
0
1
System Standby Heat/cool
6
R/W
0006
4012
0
1
Temp Units
7
R/W
0007
4014
-34
343
Setpoint 1 (ºC)
8
R/W
0008
4016
-34
343
Setpoint 2 (ºC)
9
R/W
0009
4018
-34
343
Alarm 1 Low (ºC)
10
R/W
0010
4020
-34
343
Alarm 1 High (ºC)
11
R/W
0011
4022
1
343
Prop. Band Heat (ºC)
12
R/W
0012
4024
1
343
Prop. Band Cool (ºC)
13
R/W
0013
4026
0
999
Reset (seconds)
14
R/W
0014
4028
0
999
Rate (seconds)
15
R/W
0015
4030
0
999
Autotune.State
16
R/W
0016
4032
0
999
Autotune.TuneDutyPercent
17
R/W
0017
4034
0
999
Autotune.PeakOverShoot
18
R/W
0018
4036
0
999
Autotune.PeakUnderShoot
19
R/W
0019
4038
0
999
Autotune.InitialTempDeviation
20
R/W
0020
4040
0
999
Autotune.ProcessTripTemp
21
R
0021
4042
-34
343
Delivery Temp (ºF)
22
R/W
0022
4044
-34
343
Setpoint 1 (ºF)
23
R/W
0023
4046
0
999
Proportional Percent (%)
24
R/W
0024
4048
0
999
Integral Percent (%)
25
R/W
0025
4050
0
999
Direvative Percent (%)
26
R/W
0026
4052
0
999
PID Output Percent (%)
27
R/W
0027
4054
0
999
Heater Output Percent (%)
28
R/W
0028
4056
0
999
Cooling Output Percent (%)
30
R
0030
4060
0
1
Pump Status
31
R
0031
4062
0
1,2,3
Heater Status; 1=low, 2=high,
3=low & high
32
R
0032
4064
0
1
Vent Status