Specifications; General Specifications; Functional And Performance Specifications - Omron CJ1W- ECT21 Operation Manual

1-4

Specifications

This section provides the general specifications of the EtherCAT Slave Unit.
1-4-1

General Specifications

The general specifications conform to those of the CJ-series PLCs, CP-series PLCs and NSJ-series
PLCs.
1-4-2

Functional and Performance Specifications

This section provides the functional and performance specifications of the EtherCAT Slave Unit.
Model number
Applicable PLCs
Unit classification
Applicable unit numbers
Mounting position
Number of Units that can be mounted
CPU Unit words
used
Transmission

specifications

Current consumption
Weight
Dimensions
*1. Set with allocated DM area words (CPU Bus Unit words) or CX-Programmer.
*2. The CJ-series EtherCAT Slave Unit conforms to EtherCAT standards. Confirm the specifications of the con-
nected EtherCAT master for the support topology. The EtherCAT Slave Unit with unit version 1.0 or later sup-
ports a ring topology.
CJ-series EtherCAT Slave Units Operation Manual (W541)
Item
Allocated CIO Area words
(CPU Bus Unit words)
Allocated DM Area words
(CPU Bus Unit words)
Other I/O memory
CPU Bus Unit setting area
Communications protocol
Modulation
Baud rate
Physical layer
Topology
Transmission media
Transmission distance
Send/receive PDO data
sizes
Mailbox data size
Mailbox
Refreshing methods
Node address setting
range
1 Features and System Configuration
Specification
CJ1W-ECT21
CJ-series, CP-series, NSJ-series
CPU Bus Unit
0 to F
CPU Rack or Expansion Rack
16 Units max. (you must allocate unique words)
25 words/Unit (one unit number's words)
Unit Status 1, Unit Status 2, Slave Status 1, Slave Status 2
100 words/Unit (one unit number's words)
I/O Communication Area Setting Table, I/O Communication
Area Reference Table
I/O communication area in any area
Not used
EtherCAT protocol
Baseband
100 Mbps
100BASE-TX (IEEE 802.3)
Depends on the specifications of the EtherCAT master
Category 5 or higher twisted-pair cable (Recommended cable:
double-shielded cable with aluminum tape and braiding)
Distance between nodes: 100 m or less
Allocatable IN and OUT data area sizes of 0, 50, 100, 200 or
400 bytes
Input: 512 bytes
Output: 512 bytes
Emergency messages and SDO requests
Free-Run Mode
1 to 255 (hardware switch setting)
1 to 65535 (software switch setting)
340 mA max. at 5 V DC
97 g max.
31 × 90 × 65 mm (W × H × D)
*1
*2
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