Omron SYSMAC CS Series User Manual

17
Outline Section 1-1
1-1-10 Loop Controller Mechanism
Overall Mechanism The following illustration shows a block diagram of the overall mechanism.
The following describes each of the functions of the Loop Controller.
1) External I/O
!WARNING Do not perform writing operations on the same I/O memory address allocated
to contact outputs or analog outputs between the Loop Controller component
and the CPU Unit.
If writing is performed on the same address, the externally connected load
may function unexpectedly, causing an injury.
1
CMND
PID
Loop Controller
Field Terminals
CPU Unit
Analog
Input/Output Unit
Basic I/O Unit
I/O memory
Computer
User Program
Ex: Wiring of ITEM
data in operation
blocks using FINS
commands
Input 1 of Analog
Input Unit
Input 2 of Analog
Input Unit
Field Terminal
block
Analog
Input
Analog
input
Field Terminal
block
Output of Analog
Output Unit
Field Terminal
block
Analog
output
Control block
All functions are achieved by software wiring between any combinations of function blocks.
Operation block
∗
1:
Data is exchanged via
allocated words in
the CPU Unit's
CIO Area
I/O memory
HMI data
in
specified
bank of
EM area
Control and
operation
blocks
External controller
blocks
Sequence table
and step ladder
blocks
Allocated
ITEMs
Allocated
ITEMs
HMI
function
Allocated
ITEMs from
control,
operation,
and external
controller
blocks
User link
table
Tag A
Tag B
Tag C
Tag D
User-
specified
words
∗
1
∗
CSV tags
specified.
CSV tags
specified.
Addition
/Sub-
traction

Omron SYSMAC CS Series Specifications

General

Brand	Omron
Model	SYSMAC CS Series
Category	Controller
Language	English