CJ1W-SRM21 OMRON I/O communication module

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Item Specification Communications method Special CompoBus/S protocol Communications baud rate High-speed Communications Mode	750 kbps Long-distance Communications Mode
frame length check
and parity check Cable VCTF cable (JIS C 3306) Two 0.75 mm2 conductors (2 signal wires) Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires) Special Flat Cable Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires) Commu- nications distance 2-conductor VCTF cable High-speed Communications Mode Main line length	100 m max. Branch line length
provided that the total length of cable is a maximum of 200 m. Special Flat Cable High-speed Communications Mode Main line length	30 m max. Branch line length
the main line can be up to 100 m long and the total branch line length can be up to 50 m in High-speed Communications Mode. Long-distance Communications Mode	Flexibly branched
provided that the total length of cable is a maximum of 200 m. Specifications I/O points 256 (128 inputs and 128 outputs) or 128 (64 inputs and 64 outputs) (Switch- selectable) Applicable PLC models CJ-series PLCs Unit type Special I/O Unit Allocated words * For 256 I/O	20 words (8 for inputs
8 for outputs
4 for status) For 128 I/O	10 words (4 for inputs
4 for outputs
2 for status) No. of mountable Master Units 40 Node address 8 addresses per node No. of connectable Slaves 32 Status information Communications Error Flags
Participation Flags

Item Specification Communications method Special CompoBus/S protocol Communications baud rate High-speed Communications Mode

750 kbps Long-distance Communications Mode

frame length check

and parity check Cable VCTF cable (JIS C 3306) Two 0.75 mm2 conductors (2 signal wires) Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires) Special Flat Cable Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires) Commu- nications distance 2-conductor VCTF cable High-speed Communications Mode Main line length

100 m max. Branch line length

provided that the total length of cable is a maximum of 200 m. Special Flat Cable High-speed Communications Mode Main line length

30 m max. Branch line length

the main line can be up to 100 m long and the total branch line length can be up to 50 m in High-speed Communications Mode. Long-distance Communications Mode

Flexibly branched

provided that the total length of cable is a maximum of 200 m. Specifications I/O points 256 (128 inputs and 128 outputs) or 128 (64 inputs and 64 outputs) (Switch- selectable) Applicable PLC models CJ-series PLCs Unit type Special I/O Unit Allocated words * For 256 I/O

20 words (8 for inputs

8 for outputs

4 for status) For 128 I/O

10 words (4 for inputs

4 for outputs

2 for status) No. of mountable Master Units 40 Node address 8 addresses per node No. of connectable Slaves 32 Status information Communications Error Flags

Participation Flags

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