Memory Allocation - Omron C200H-TV Series Operation Manual

Memory Allocation

4-1

Memory Allocation

Memory Allocation
C200H PC
IR area
Unit#0 IR100 to IR109
Unit#1 IR110 to IR119
Unit#2 IR120 to IR129
Unit#3 IR130 to IR139
Unit#4 IR140 to IR149
Unit#5 IR150 to IR159
Unit#6 IR160 to IR169
Unit#7 IR170 to IR179
Unit#8 IR180 to IR189
Unit#9 IR190 to IR199
Selecting Allocated Data
36
According to the Unit number switch setting on the front of the C200H Heat/Cool
Temperature Control Unit, 10 words are allocated for each Unit number in the
Special I/O Unit IR area between IR100 to IR199, which is used as the I/O
refresh data area. The IR area used by the C200H Temperature Control Unit is
refreshed on each C200H PC I/O refresh cycle.
OUT
IN
During the PC's I/O refresh,
each cycle is executed for
the outputs (PC to Heat/Cool
Temperature Control Unit)
followed by the inputs (Heat/
Cool Temperature Control
Unit to PC).
Note A Duplicate I/O Unit error occurs if the set Unit number corresponds to the num-
ber of an existing Special I/O Unit.
The data allocated to each IR word due to the Unit number setting is determined
by the setting of SW2-1 on the front of the Unit.
ON Normal
OFF Fixed
This setting becomes valid immediately when the switch is set.
Heat/Cool Temperature Control Unit
I/O refresh data area
Wd (n)
Output
to
refresh
Wd (n+2)
Wd (n+3)
Input
to
refresh
Wd (n+9)
(n=100 + 10 x Unit number)
The terms "output" and
"input" are defined from
the C200H PC side.
All data can be set using commands.
Parameters are fixed for the set point (SP).
Section 4-1