I/O Allocation - Omron SYSMAC CS1 Operation Manual

Programmable Controller Functions
Mountable Units
Programming Devices

1-5-1 I/O Allocation

The Power Supply Units, I/O Units, Special I/O Units, and CPU Bus Units that
can be mounted to CS-series Expansion Racks can be used with the SYSMAC
CS1 Board except for Inner Boards and Units that must be mounted to the CPU
Rack. Refer to the CS-series Programmable Controllers Operation Manual
(W339) for details.
The following Units cannot be used: Interrupt Input Units, Loop Control Units,
and Serial Communications Boards.
Any CS-series Programming Device that connects to the peripheral port can be
used with the SYSMAC CS1 Board. Use the same Connecting Cables that are
used with CS-series PLCs. Refer to the CS-series Programmable Controllers
Operation Manual (W339) for details.
Allocation of I/O words for the SYSMAC CS1 Board is the same as for the CS-se-
ries PLCs, i.e., Units can be mounted in any slot and words are allocated to the
Units based on the Units mounted in the PLC.
Words are allocated to Units in the Expansion Racks from left to right, as shown
in the following diagram. Words are not allocated to empty slots.
Expansion I/O
Board
Words are allocated
to Racks in order.
(Nearest to farthest)
Words (starting with CIO 0000) are allocated to slots starting with the leftmost
slot in the first Rack.
Note 1. There are special data areas allocated for Special I/O Units and CPU Bus
Units. The allocation of words for these Units is the same as for the CS-se-
ries PLCs.
2. Refer to the CS-series Programmable Controllers Operation Manual
(W339) for more details on the word addresses allocated to I/O Units, Spe-
cial I/O Units, and CPU Bus Units.
Computer
Words are allocated starting
from CIO 0000.
CS-series Expansion
Rack
Section 1-5
CS-series Expansion
Rack
9