Specifications And Characteristics - Omron CJ1W-CT021 Operation Manual

Specifications and Characteristics

1-3 Specifications and Characteristics
1-3-1 General Specifications
Item
Unit type
General Specifications
Ambient Operating
Temperature
Ambient Storage Temperature −20 to 75 °C
Ambient Operating Humidity
Internal Current Consumption
Dimensions (mm)
Weight
Mounting Position
Maximum Number of CT021
Units per Rack
Maximum Number of CT021
Units per basic CJ PLC
Data Exchange with CPU Unit • I/O Refresh Data Area (CIO-bits 200000 to 255915, CIO-words 2000 to
CJ1W-CT021
CJ-series Special I/O Unit
Conform to general specifications for SYSMAC CJ-series
0 to 55 °C
10% to 90% without condensation
280 mA (at 5 V)
31 x 90 x 65 (W x H x D)
100 g
CJ-series CPU Rack or CJ-series Expansion Rack (see Note 1)
Equal to the number of slots of the Rack (see Note 2)
24
2959): Note 3)
• Special I/O Unit DM-Area (D-words 20000 to 29599): 400 DM-words per Unit
are transmitted form the CPU to the Unit at Power Up or when the Unit is
restarted (see Note 4)
Note 1. The Unit must be in one of the five positions immediately to the right of the CJ1-
H CPU Unit or in one of the three positions immediately to the right of the CJ1M
CPU Unit to activate external interrupt tasks. No external interrupt tasks can be
activated if the Unit is in any other position (i.e., 6th Unit position or further away
from the CJ1-H CPU Unit, or 4th Unit position or further away from the CJ1M
CPU Unit), or if it is on a CJ-series Expansion Rack.
2. The maximum number of Units per Rack is also depending on the maximum
supply current of the Power Supply Unit and the current consumption of other
Units on the Rack.
3. The CJ1W-CT021 Special I/O Unit is allocated words for 40 words in the Spe-
cial I/O Unit (CIO) Area (refer to 4-2-3 "CIO-Memory Mapping").
4. The CJ1W-CT021 Special I/O Unit is allocated words for 4 Units in the Special
I/O Unit DM Area. From the 400 DM words that are allocated, the first 113
words are used to make the DM-settings and the remaining 287 words can be
used as work-words (refer to 4-2-4 "DM-Memory Mapping").
Section 1-3
7