User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-N16
–
for
Controller output
parameter block:
•
in
Offset
parameter write
0
,
•
in
Low output limit
write
0 mA
,
•
in
High output limit
write
20 mA
,
After leaving the configuration save the settings. In next steps we should set Logical
channels (examples of logical channel configuration are presented in
Chapter 7.8.11.
Examples of Logical Channels configuration
, especially
7.8.11.6. Application of Logical
channel in the Controller mode
), set Modbus for a Slave device (examples of Modbus
configuration are presented in
Chapter 7.15.4. Modbus - Example of Modbus protocol
, examples of external outputs configuration which will
communicate with a Slave device via RS-485 are presented in
Chapter 7.11.4. Examples of
external output configurations
7.13.2.2.
Application of the Controllers in cooperation with heater which is controlled
by
OC-type
output.
See also:
Chapter 7.13. CONTROLLERS
Chapter 7.10.3. Built-in output - PWM
(Pulse-width modulation) mode for OC-type relay output
Task:
The task is to configure the controller which will control the heater using the OC-type
output in order to obtain a constant object temperature. Logical channels with a set point
value and temperature from the thermocouple type K sensor are connected to the controller.
Due to the fact that choosing a PID controller is not a matter of the task, we can use the
following demonstration values: P=5, I=10, D=1. We do not want the controller to respond to
a deviation lower than 2ºC. On the controller's output set 4-20mA range because that is the
range of the converter we use to control the heater in this task.
Solution:
First configure the controller, then connect the type K thermocouple and Current
converter to the device. Examples of these connections are presented in
204
