Omron C200HX Operation Manual page 50

IR (Internal Relay) Area
Allocation for Group-2
High-density I/O Units and
B7 Interface Units
See
note.
32
Group-2 High-density I/O Units and B7A Interface Units are allocated words be-
tween IR 030 and IR 049 according to I/O number settings made on them and do
not use the words allocated to the slots in which they are mounted. For 32-point
Units, each Unit is allocated two words; for 64-point Units, each Unit is allocated
four words. The words allocated for each I/O number are in the following tables.
Any words or parts of words not used for I/O can be used as work words or bits in
programming.
32-point Units
I/O number
0 IR 30 to IR 31
1 IR 32 to IR 33
2 IR 34 to IR 35
3 IR 36 to IR 37
4 IR 38 to IR 39
5 IR 40 to IR 41
6 IR 42 to IR 43
7 IR 44 to IR 45
8 IR 46 to IR 47
9 IR 48 to IR 49
A IR 330 to IR 331
B IR 332 to IR 333
C IR 334 to IR 335
D IR 336 to IR 337
E IR 338 to IR 339
F IR 340 to IR 341
Note Unit numbers A to F cannot be set when using the following CPU Units:
C200HE-CPU32(-Z), C200HE-CPU42(-Z), C200HG-CPU33(-Z), C200HG-
CPU43(-Z), C200HX-CPU34(-Z), and C200HX-CPU44(-Z). Set unit number 0
to 9 when using these CPU Units.
When setting I/O numbers on the High-density I/O Units and B7A Interface
Units, be sure that the settings will not cause the same words to be allocated to
more than one Unit. For example, if I/O number 0 is allocated to a 64-point Unit,
I/O number 1 cannot be used for any Unit in the system.
Group-2 High-density I/O Units and B7A Interface Units are not considered Spe-
cial I/O Units and do not affect the limit to the number of Special I/O Units allowed
in the System, regardless of the number used.
The words allocated to Group-2 High-density I/O Units correspond to the con-
nectors on the Units as shown in the following table.
Unit
32-point Units p
64-point Units p
Note 1. Group-2 High-density I/O Units and B7A Interface Units cannot be mounted
to Slave Racks.
2. Refer to the Installation Guide for limitations on the number of Special I/O
Units that can be mounted to Slave Racks.
64-point Units
Words I/O number
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Word
m
m + 1
m
m + 1
m + 2
m + 3
Section 3-3
Words
IR 30 to IR 33
IR 32 to IR 35
IR 34 to IR 37
IR 36 to IR 39
IR 38 to IR 41
IR 40 to IR 43
IR 42 to IR 45
IR 44 to IR 47
IR 46 to IR 49
Cannot be used.
IR 330 to IR 333
IR 332 to IR 335
IR 334 to IR 337
IR 336 to IR 339
IR 338 to IR 341
Cannot be used.
Connector/row
Row A
Row B
CN1, row A
CN1, row B
CN2, row A
CN2, row B