Item list of CJ1W-ECT21
The general specifications conform to those of the CJ-series PLCs, CP-series PLCs and NSJ-series PLCs.
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CJ1W-ECT21
CJ-series EtherCAT® Slave Unit
Hi-speed I/O link based on EtherCAT
about this Product Family
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last update: April 01, 2015
General Specification
Specifications
EtherCAT Slave Unit CJ1W-ECT21
| Item | Specification | |
|---|---|---|
| Model number | CJ1W-ECT21 | |
| Applicable PLCs | NJ-series, 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) *1 |
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) *2 |
100 words/Unit (one unit number’s words) | |
| I/O Communication Area Setting Table, I/O Communication Area Reference Table | ||
| Other I/O memory *3 | I/O communication area in any area *4 | |
| 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 | |
| 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) | |
*1. Access via the device variables for CJ-series Unit when using NJ-serires CPU Units.
*2. Using the user-defined variable for R/W to the allocation area when using NJ-serires CPU Units.
*3. The IN and OUT data exchanged with the EtherCAT master is designated to memory areas by configuring the I/O Communication Area Setting Table. Refer to “CJ-series EtherCAT Slave Units Operation Manual” for NJ-series CPU Unit (W542)
*4. Set with allocated DM area words (CPU Bus Unit words) or CX-Programmer when using CJ/CP/NSJ-series CPU Units.
EtherCAT Communications Specifications
| Item | Specification |
|---|---|
| Communications standard | IEC 61158 Type 12 |
| Physical layer | 100BASE-TX (IEEE 802.3) |
| Modulation | Baseband |
| Baud rate | 100 Mbps |
| Topology | Depends on the specifications of the EtherCAT master. |
| 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 |
Unit Versions and Software Versions
| Model mumber of
EtherCAT Slave Unit |
Unit
version |
Corresponding unit version/version * | |||
|---|---|---|---|---|---|
| Using NJ CPU Unit | Using CJ/CP/NSJ-series CPU Unit | ||||
| Unit version of
CPU Units |
Sysmac Studio Version | Unit version of
CPU Units |
CX-Programmer version | ||
| CJ1W-ECT21 | Ver.1.0 | Ver.1.10 or later | Ver.1.13 or higher | The oldest available
version or later |
Ver.9.54 or higher |
* Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version, support is provided by the oldest available version after the specified version. Refer to the user’fs manuals for the specific Units for the relation between models and versions.
last update: April 01, 2015
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