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Omron PLC CJ1W
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| Place of Origin | China/Japan |
| Brand Name | Omron |
| Model Number | CJ1W-CLK23 |
• Large-capacity data links are easily achieved without programming simply by setting data link tables.
• Up to 20,000 *1 send/receive words can be set per node for Units (up to 62,000 words for Boards).
• Data links can be performed with up to 4,000 *2 words per node while ensuring data concurrency.
• User-set data link tables can be changed while data links are operating. *3
• Errors for the entire system can be monitored by using error diagnosis support software and a variety of status flags.
*1. Supported for unit version 1.2 or later.
*2. CJ1W-CLK23 and 3G8F7-CLK[]3 are supported.
*3. Supported for CJ1W-CLK23, 3G8F7-CLK[]3, and models ending with "-V1".
| Items | Specifications |
|---|---|
| Model | CJ1W-CLK23 3G8F7-CLK23-E CJ1W-CLK21-V1 *1 3G8F7-CLK21-EV1 *1 |
| Type | Wired (shielded twisted-pair cable) |
| Communications method | N:N token-bus method |
| Code | Manchester code |
| Modulation | Baseband code |
| Synchronization | Flag synchronization (conforms to HDLC frames) |
| Transmission path format | Multidrop method (bus type) |
| Transmission speed | The following are the maximum transmission distances depending on the transmission speed. 2 Mbits/s: 500 m 1 Mbits/s: 800 m 500 kbits/s: 1 km |
| Maximum transmission distance |
|
| Maximum distance between nodes |
Not specified. (Maximum transmission distance must be satisfied for the entire system.) |
| Medium | Specified shielded twist-pair cable Two signal wires, one shield |
| Node connection method | PLC: Connection to terminal block Computer: Connection using special (supplied) connector |
| Maximum number of nodes | 32 or 62 nodes *2 *3 |
| Applicable Programming Devices |
CX-Integrator in CX-One, CX-Net in CX-Programmer *3, and Programming Console |
| Communications functions | Data links and message service |
| Number of data link words | Send words per node: 4,000 words max. (CJ1W-CLK[]3), 1,000 words max. (All other Units) Number of send/receive words per node: 12,000 words max. (Pre-Ver. 1.2) 20,000 words max. (unit Ver. 1.2 or later) Total number of send words per network: 62,000 words max. |
| Data link areas | PLC: Bit areas (CIO Area, Work Area, Link Area *4), Data Memory (DM), Extended DM Area (EM) Computer: FinsGateway event memory |
| Message length | 2,012 bytes max. (including the header) |
| RAS functions | Polling node backup function Self-diagnosis function (hardware checking at startup) Echoback test and broadcast test (using the FINS command) Watchdog timer Error log function |
| Error control | Manchester code check CRC check (CCITT X16 +X12 +X5 +1) |
| Item | Specifications |
|---|---|
| Model | CJ1W-CLK23 CJ1W-CLK21-V1 * |
| Applicable PLC | All CJ-series CPU Units |
| Number of mountable Units | 8 max. |
| Installation site | Install onto a CPU Backplane or Expansion Backplane (classified as a CPU Bus Unit). |
| Storage location of network parameters and manually set data link tables |
System Bus Unit Area (in the CPU Unit parameter area). |
| Storage location of routing tables | CPU Unit parameter area |
| Weight | 110 g |
| Current consumption: 5 V in PLC | 0.35 A |
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