Input Signal Width - Omron CJ2 CPU UNIT User Manual

Application Precautions
• Interrupt Input Units must be mounted in the locations described below.
When using a CJ2H-CPU6@-EIP CPU Unit, all Interrupt Input Units must be connected in any of the
four positions immediately to the right of the CPU Unit, i.e., slots 0 to 3 on the CPU Rack. When
using a CJ2H-CPU6@ CPU Unit or CJ2M-CPU@@ Unit, all Interrupt Input Units must be connected
in any of the five positions immediately to the right of the CPU Unit, i.e., slots 0 to 4 on the CPU
Rack. If an Interrupt Input Unit is connected in any other position on the CPU Rack or anywhere on
an Expansion Rack, and I/O setting error (fatal) will occur.
Example: CJ2H-CPU6@-EIP
Power
CPU
Supply
Unit
Unit
• The Interrupt Input Units must be connected in the slot ranges specified above even when the I/O
tables are edited using the CX-Programmer. If the Interrupt Input Units are not connected in the cor-
rect positions, an error will occur when the I/O tables are generated from the CX-Programmer.
A401.10 will turn ON to indicate an I/O setting error and A405.08 will turn ON to indicate that an Inter-
rupt Input Unit is in the wrong position.
Note Even if a Unit is physically in one of the correct positions, a Dummy Unit can be registered in the I/O tables,
causing a Unit to be defined in a position different from its physical position.
• There are limits to the number of Interrupt Input Units that can be mounted. If these limits are
exceeded, a too many I/O points error (fatal error) will occur.
• The input response time cannot be changed for the CJ1W-INT01, and the related portions of the
Basic I/O Unit input time constants in the PLC Setup, and the setting status in A200 to A259 will not
be valid.

Input Signal Width

Input signals must meet the following conditions.
ON
Unit
CJ1W-INT01
CJ2 CPU Unit Hardware User's Manual
0 1 2 3 4 5 6 7 8
Connect here. Cannot be used.
OFF
ON time OFF time
0.05 ms min. 0.5 ms min.
3 Nomenclature and Functions
9
3
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