Omron CS1 -, Operation Manual

Page: 91 / 173

6-3 Section SR Area
71
6-3 SR Area
In the following table, Unit in the Controlled by column indicates areas for which
only reading is possible using instructions from the ladder program, and User
indicates areas for which both reading and writing is possible from the ladder
program.
Address Bits Function Controlled
by
SR 220
00 to 15
Arguments for MCRO instruction Unit
to
SR 224
...
g
SR 224
00 to 15
SR 225 00 to 15 Return values for MCRO instruction
to
SR 229
...
SR 229
00 to 15
SR 230 00 For exchanging data
with words allocated in
CPU Unit’s CIO Area
(f
d f
Correspond-
ing word in
CIO Area Details
(for commands from
CPU Unit to
Customizable Counter
Unit)
n Monitors RUN/STOP commands from
the CPU Unit
Note: This function is enabled only
when bits 00 to 07 in word m allocated
in DM Area are set to 00 Hex.
01 to 07 (Reserved by system.) (Reserved by system.)
08 to 15
For exchanging data
i h d ll d i
General-purpose input (i.e., from the
CPU U i )
SR 231 00 to 15
g g
with words allocated in
CPU Unit’s CIO Are
n+1
( ,
CPU Unit) area
SR 232 00 to 15
CPU Unit’s CIO Area
(from CPU Unit to
n+2
SR 233 00 to 15
(from CPU Unit to
Customizable Counter
U it)
n+3
SR 234 00 to 15
Unit)
n+4