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1 cs 1 single loop pid description, 2 setting up the standard pid loop – Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Installation User Manual

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4.1.1 CS 1 SINGLE LOOP PID DESCRIPTION

The "Standard PID" configuration of the Flexible Control Strategy (FCS) is designed to fulfill the re-
quirements of a large majority of process applications. CS1 implements a standard feedback con-
trol loop which automatically controls a process variable (PV) at a predetermined setpoint (SP).
The process variable and the control signal output are the only essential signals in this configura-
tion. CS1 is loaded from EPROM to set-up the FCS with a minimum of configuration effort. The
user must only configure the proper ranges and setpoints for the particular application.

AI0 - Process Variable (PV)

AI1 - Remote Setpoint

AI2 - Additive Feed Forward Input

AI3 - Tracking Input

AO0 - Controller Output

AO1 - Retransmitted PV

DI0 - Force Output Tracking (Open Contact)

DI1 - Remote Setpoint Enable (Closed Contact)

DO0 - Process Alarm 1

DO1 - Process Alarm 2

4.1.2 SETTING UP THE STANDARD PID LOOP

All Single Loop 53MC5000’s are shipped from the factory with CS1 loaded. For instruments being
installed for the first time, Steps 1, 2 and 3 are not required. If the state of the database is un-
known Steps 1, 2 and 3 should be followed.

1. For a first time start-up, it is suggested that the database be set to default values. This is done
by configuring B00 to load a default database. B00 is the Function Index (FIX) of the controller,
which identifies the type of control strategy being executed. Entering 98 in B00 will load the default
values. When the default process is complete, B00 will reset to 0 and the display will show the logo.
This means the 53MC5000 is in "Suspend mode" (B00=0) and the processor is halted.

2. With the 53MC5000 still in "Suspend" (B00=0), load the FCS set-up values for CS1 Standard
Single Loop PID from EPROM into controller RAM. This is done by setting B16=1. Other values in
B16 will load other strategy types (See Instruction Bulletin 53MC5000 ). B16 will always reset to 0
when the load is complete.

3. Set B00=1, which tells the controller to run the FCS strategy which has been loaded to operate
as CS1 Standard PID.

At this point, the 53MC5000 is a functional controller with default spans and tuning parameters.
The user may configure parameters specific to the application as described below.

MODULAR CONTROLLER QUICK START

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