I/O Allocations To Special I/O Units - Omron SYSMAC CS Series Operation Manual

I/O Allocation Methods
8-2-2

I/O Allocations to Special I/O Units

Word Allocation
Example
Slot
0 C200H-ID212 16-point DC Input Unit
1 C200H-AD002 Analog Input Unit
2 C200H-OD21A 16-point Transistor Output Unit
3 C200H-NC211 Position Control Unit
4 C200H-OD218 32-point Transistor Output Unit
390
Special I/O Units include the following Units:
• CS-series Special I/O Units
• C200H Special I/O Units
Each of these Units is allocated ten words in the Special I/O Unit Area
(CIO 2000 to CIO 2959) according the unit number set on the Unit.
Special I/O Units can be mounted to the CPU Rack, CS-series Expansion
Racks, and C200H Expansion I/O Racks (see note 2).
1. Refer to 2-4 Units for more details on the available Special I/O Units.
Note
2. CS-series Special I/O Units cannot be mounted to C200H Expansion I/O
Racks.
The following table shows which words in the Special I/O Unit Area are allo-
cated to each Unit according to unit number.
Unit number
0
1
2
:
15
:
95
Special I/O Units are ignored during I/O allocation to Basic I/O Units. Slots
containing Special I/O Units are treated as empty slots and aren't allocated
any words in the I/O Area.
The following example shows the I/O word allocation to Basic I/O Units and
Special I/O Units in the CPU Rack.
Unit
Words allocated
CIO 2000 to CIO 2009
CIO 2010 to CIO 2019
CIO 2020 to CIO 2029
:
CIO 2150 to CIO 2159
:
CIO 2950 to CIO 2959
Special Special
IN OUT OUT
I/O I/O
16 16 32
Unit Unit
CIO CIO CIO
CIO CIO
0000 0001 0002
2000 2010
and
to to
0003
2009 2019
Words Words allocated
required
1 CIO 0000
10 CIO 2000 to CIO 2009
1 CIO 0001
20 CIO 2010 to CIO 2029
2 CIO 0002 and CIO 0003 ---
Section 8-2
CPU Rack
Unit Group
number
--- Basic I/O Unit
0 Special I/O Unit
--- Basic I/O Unit
1 Special I/O Unit
Basic I/O Unit