INTRODUCTION
I-E96-207A
2 - 1
SECTION 2 - DESCRIPTION AND OPERATION
INTRODUCTION
This section explains the inputs, outputs, logic power and con-
nections for the Controller Module (IMCOM03/04). The COM is
a process field I/O interface and controller module.
DESCRIPTION
This board contains the reset switch, status LED, module
address/test dipswitch, analog output dipswitches, digital
input jumpers, the microprocessor unit (MC68B09), read only
memory (ROM), and random accessory memory (RAM). Edge
connector P1 enables module bus communications and pro-
vides module operating power, and edge connector P3 provides
the interface for field input/output. Further details of the
switches and connectors appear in the installation and trou-
bleshooting sections of this document.
The controller module mounts in one slot of the INFI 90 Module
Mounting Unit (IEMMU01/02/04). Two edge connectors pro-
vide the IMC0M03/04 with power, communication and process
I/O. They receive power and system communication (module
bus) through the MMU backplane. Process inputs and optional
Analog Control Station (IISAC01) connect to the Control I/O
Termination Unit (NTCS02) or module (NICS01). The controller
module receives I/O and communicates with the SAC through
its cable connection to the termination unit or module. The
COM communicates with other master modules on the module
bus as shown in Figure
. It references the address set by the
address dipswitch (S4). Figure
is a block diagram of the
COM. The controller module can be operated in three modes:
EXECUTE, CONFIGURE AND ERROR. Details of the function
of these three modes are in the operation section of this
document.
The controller module receives and transmits signals by way of
the communication highway and the module bus. This allows
the module to act as a stand-alone or as part of a larger
system.
NOTE: This document covers versions 03 and 04 of the controller
module. The difference between these versions is the amount of
available configuration memory and the menu of executable control
functions.
The main function of the module is control strategy implemen-
tation. The circuits on the module also do these functions:
•
Store and run the configuration entered into the COM.
