| Item | Specification | |
| Model Name | CJ1W-CRM21 | |
| Communications protocol | CompoNet Network protocol | |
| Types of communications | Remote I/O communications (programless,constant sharing of data with Slave Units)and message communications (explicit message communications as required with Slave Units and FINS message communications as required with Controllers *1) |
|
| Baud rate | 4 Mbps *2,3 Mbps,1.5 Mbps,93.75 kbps | |
| Modulation | Base-band | |
| Coding | Manchester code | |
| Error control | Manchester code rules,CRC | |
| Communications media | The following media can be used.*3 Round cable I (JIS C 3306,2-conductor 0.75 mm2) Round cable II (JIS C3306 4-conductor 0.75 mm2) Flat Cable I (DCA4-4F10 Standard Flat Cable) Flat Cable II (DCA5-4F10 Sheathed Flat Cable) |
|
| Communications distance and wiring |
Refer to Cable Types,Baud Rates,and Maximum Distances. | |
| Connectable Master Units | CompoNet Master Units | |
| Connectable Slave Units | CompoNet Slave Units | |
| Maximum I/O capacity | Word Slave Units:1,024 inputs and 1,024 outputs (2,048 I/O points total) Bit Slave Units:256 inputs and 256 outputs (512 I/O points total) |
|
| Maximum number of nodes | Word Slave Units:64 input nodes and 64 output nodes Bit Slave Units:128 input nodes and 128 output nodes Repeater Units:64 nodes |
|
| Bits allocated per node address |
Word Slave Units:16 bits Bit Slave Units:2 bits |
|
| Maximum number of nodes per trunk line or sub-trunk line |
32 nodes (including Repeater Units) | |
| Applicable node addresses | Word Slave Units:IN0 to IN63 and OUT0 to OUT63 Bit Slave Units:IN0 to IN127 and OUT0 to OUT127 Repeater Units:0 to 63 |
|
| Repeater Unit application conditions |
Up to 64 Repeater Units can be connected per network.When Repeater Units are connected in series from the Master Unit,up to 2 extra segment layers can be created (i.e.,up to 2 Repeater Units are allowed between a Slave Unit and the Master Unit). |
|
| Signal lines | Two lines:BDH (communications data high)and BDL (communications data low) | |
| Power lines | Two lines:BS+and BS -(power for communications and internal Slave Unit circuits) Power is supplied from the Master Unit or Repeater Units. |
|
| Communications power supply |
24 VDC ± 10% | |
| Connection forms | Flat Cable at baud rate of 93.75 kbps:No restrictions Other cables or baud rates:Trunk line and branch lines |
|
| Connections for Slave Units and Repeater Units:T-branch or multidrop connections | ||
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