Omron CJ1W- ECT21 User Manual

1 - 9
1 Features and System Configuration
CJ-series EtherCAT Slave Units Operation Manual (W541)
1-4 Specifications
1
1-4-1 General Specifications
1-4 Specifications
This section provides the general specifications of the EtherCAT Slave Unit.
The general specifications conform to those of the CJ-series PLCs, CP-series PLCs and NSJ-series
PLCs.
This section provides the functional and performance specifications of the EtherCAT Slave Unit.
1-4-1 General Specifications
1-4-2 Functional and Performance Specifications
Item Specification
Model number CJ1W-ECT21
Applicable PLCs CJ-series, CP-series, NSJ-series
Unit classification CPU Bus Unit
Applicable unit numbers 0 to F
Mounting position CPU Rack or Expansion Rack
Number of Units that can be mounted 16 Units max. (you must allocate unique words)
CPU Unit words
used
Allocated CIO Area words
(CPU Bus Unit words)
25 words/Unit (one unit number’s words)
Unit Status 1, Unit Status 2, Slave Status 1, Slave Status 2
Allocated DM Area words
(CPU Bus Unit words)
100 words/Unit (one unit number’s words)
I/O Communication Area Setting Table, I/O Communication
Area Reference Table
Other I/O memory
I/O communication area in any area
*1
*1. Set with allocated DM area words (CPU Bus Unit words) or CX-Programmer.
CPU Bus Unit setting area Not used
Transmission
specifications
Communications protocol EtherCAT protocol
Modulation Baseband
Baud rate 100 Mbps
Physical layer 100BASE-TX (IEEE 802.3)
Topology
Depends on the specifications of the EtherCAT master
*2
*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.
Transmission media Category 5 or higher twisted-pair cable (Recommended cable:
double-shielded cable with aluminum tape and braiding)
Transmission distance Distance between nodes: 100 m or less
Send/receive PDO data
sizes
Allocatable IN and OUT data area sizes of 0, 50, 100, 200 or
400 bytes
Mailbox data size Input: 512 bytes
Output: 512 bytes
Mailbox Emergency messages and SDO requests
Refreshing methods Free-Run Mode
Node address setting
range
1 to 255 (hardware switch setting)
1 to 65535 (software switch setting)
Current consumption 340 mA max. at 5 V DC
Weight 97 g max.
Dimensions 31 × 90 × 65 mm (W × H × D)

Omron CJ1W- ECT21 Specifications

General

Brand	Omron
Model	CJ1W- ECT21
Category	Computer Hardware
Language	English