MCT-MC
4.3
FDC MCT-MC
- 156 -
Appendix
A.1.10.1 Control Registers
The loop control register data table provides the list of available data for each loop controller attached to the
MC. In order to read the process value of each loop for example, you must send separate read commands
addressed specifically to each controller.
The loop controls are addressed in sequential order starting with the Modbus address entered on the
communications settings screen on the MC. If the Modbus address is set to 3 and there are 5 loop controls
attached, the loop control addresses would be 3, 4, 5, 6 and 7. Sending the read register command to the MC
to read register 128 with an address of 5 would result in the MC returning the process value of loop number 3.
The third loop based on the example, responds to the Modbus address of 5.
For a system of 1 to 10 loops, simply changing the address of the command allows you to send or receive the
same data from the next loop controller. Utilizing a read register command starting at register 127, and reading
a total of 13 registers, allows you to retrieve the current operating status of the loop control in a single command.
By repeating the command for each loop attached to the MC, your software can continually monitor the status
of all loops attached quickly and efficiently.
The design of the serial interface also allows the MC to connect to Future Design Conrtols’ Envision software.
The software is free of charge and provides a host of features and is compatible with all FDC products. Using
the P-Series controller selection in EnVision, each loop controller of the MC can be configured in EnVision as
individual P-Series controls. This allows each one to be independently monitored and controlled over the MC
interface.
Register Address
Parameter Description
Data
*A
Range *B
*C
Type
Low
High
Unit
0
(0x0000)
Controller Set Point (Static Mode)
W
-32768
32767
*C1
1
(0x0001)
Current Program/Segment Number
R/W
*B1
*B1
-
5
(0x0005)
Set Point for Alarm 1
R/W
-32768
32767
*C1
6
(0x0006)
Set Point for Alarm 2
R/W
-32768
32767
*C1
7
(0x0007)
Set Point for Alarm 3
R/W
-32768
32767
*C1
9
(0x0009)
Input Unit Selection
R
*B2
*B2
-
10
(0x000A)
Decimal Point Selection
R
0
3
-
11
(0x000B)
Operation Mode
R/W
*B3
*B3
-
127
(0x007F)
Manual Event Output
R/W
*B4
*B4
-
128
(0x0080)
Process Value (PV)
R
-32768
32767
*C1
129
(0x0081)
Set Point Value (SV) for Control
R
-32768
32767
*C1
130
(0x0082)
Output 1 Percentage Value (MV1)
R/W
0.00
100.00
%
131
(0x0083)
Output 2 Percentage Value (MV2)
R/W
0.00
100.00
%
132
(0x0084)
Mode and Operational Status
R
*B5
*B5
-
133
(0x0085)
Error Code
R
*B6
*B6
-
134
(0x0086)
Current Program and Segment Running
R
*B1
*B1
-
135
(0x0087)
Total Number of Steps
R
1
64
-
136
(0x0088)
Total Time for Step Running
R
0
99.59
-
137
(0x0089)
Set Point for Current Step
R
-32768
32767
*C1
Summary of Contents for MCT-MC 4.3
Page 1: ...MCT MC 4 3 User Manual MCT MC 4 3 User Manual Rev A February 2018...
Page 176: ...MCT MC4 3 FDC MCT MC 176 Appendix...
Page 177: ...MCT MC4 3 Appendix 177 FDC MCT MC Open Frame Power Supply Specifications...
Page 178: ...MCT MC4 3 FDC MCT MC 178 Appendix...
Page 179: ...MCT MC4 3 Appendix 179 FDC MCT MC A 6 Power On Delay Relay Specifications GE1A C10HA110...
Page 180: ...MCT MC4 3 FDC MCT MC 180 Appendix...
