Controllers And Programmers - Honeywell DCP551 Mark ΙΙ User Manual

5-4 Controllers and Programmers

C21
Setup data allows the user to select the controller function or the programmer function.
Controller
Programmer
PV
PV
Controlled process
NOTE
PID controller computations can be performed using PV, SP and PID set values and the
result of the manipulated variable is output via an analog output.
ON-OFF control can be used instead of PID control.
In the MANUAL mode, manipulated variable levels can be controlled by keys available
in the basic display status.
DCP551
Controller
MV
PV
Controlled process
PID control computations are not performed and 4 to 20mA output of scaled SP signals
are output.
In the MANUAL mode, SP levels can be controlled by keys available in the basic dis-
play status.
DCP551
Programmer
SP output
4 to 20mA
controller
MV
The constant value control mode cannot be invoked when the programmer function is
used.
controller
MV
PV
Controlled process
Chapter 5. FUNCTIONS
RSP input
controller
MV
PV
Controlled process
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