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

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Specifications

This section provides the general specifications for the EtherCAT Slave Unit.
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General Specifications

The general specifications conform to those of the NJ-series CPU Units.
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Functional and Performance Specifications

This section provides the functional and performance specifications of the EtherCAT Slave Unit.
Model number
Applicable Controller
Unit classification
Applicable unit numbers
Mounting position
Number of Units that can be mounted
Words allocated
in the memory
used for
CJ-series Unit
Transmission

specifications

Current consumption
CJ-series EtherCAT Slave Units Operation Manual for NJ-series CPU Unit (W542)
Item
CJ1W-ECT21
NJ Series
CPU Bus Unit
0 to F
CPU Rack or Expansion Rack
16 Units max.
I/O port (not 25 words/Unit
retained during
Unit Status 1, Unit Status 2, Slave Status 1, Slave Status 2
power interrup-
*1
tions)
I/O port (retained 100 words/Unit
during power inter-
I/O Communication Area Setting Table, I/O Communication Area Ref-
*1
ruptions)
erence Table
*2
Other I/O memory I/O communication area in any area
Communications EtherCAT protocol
protocol
Modulation Baseband
Baud rate 100 Mbps
Physical layer 100BASE-TX (IEEE 802.3)
Topology Depends on the specifications of the EtherCAT master
Transmission Category 5 or higher twisted-pair cable (Recommended cable: dou-
media ble-shielded cable with aluminum tape and braiding)
Transmission dis- Distance between nodes: 100 m or less
tance
Send/receive PDO Allocatable IN and OUT data area sizes of 0, 50, 100, 200 or 400 bytes
data sizes
Mailbox data size Input: 512 bytes
Output: 512 bytes
Mailbox Emergency messages and SDO requests
Refreshing meth- Free-Run Mode
ods
Node address set- 1 to 255 (hardware switch setting)
ting range
1 to 65535 (software switch setting)
340 mA max. at 5 V DC
1 Features and System Configuration
Specification
*3
1
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