2

CS1W-DRM21-V1

Communications Specifications

*1. Terminators are required at both ends of trunk line.

*2. Indicates the maximum network length when thick cables are used. Reduce the network length to 100 m max. when using thin cables.

Network Specifications

Item

Specifications

Communications protocol

DeviceNet

Connection methods

Multi-drop and T-branch connections can be combined (for trunk and branch lines)

*1

Baud rate

500 Kbps, 250 Kbps, or 125 Kbps

Communications media

Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line)

Special 4-wire flat cables (2 signal lines, 2 power lines)

Communications distances for

special 5-wire cables

Baud rate

Network length

Branch line length

Total branch line length

500 kbps

100 m max.

6 m max.

39 m max.

250 kbps

250 m max.

*2

6 m max.

78 m max.

125 kbps

500 m max.

*2

6 m max.

156 m max.

Communications distances for

special 4-wire flat cables

Baud rate

Network length

Branch line length

Total branch line length

500 kbps

75 m max.

6 m max.

35 m max.

250 kbps

150 m max.

6 m max.

48 m max.

125 kbps

265 m max.

6 m max.

135 m max.

Communications

power supply

24 V DC supplied externally

Max. number of nodes

64 nodes (including Masters, Slaves, and Configurator)

Device

Device

Device

Device

Device

Device

Device

Device

Device

Device

Device

Terminating

resistance

Terminating

resistance

Tap

Tap

Tap

Tap

24 V DC power supply

for network

Tap

Device

Tap

Trunk Line Length (100 m: 500,000 bps; 250 m: 250,000 bps; or 500 m: 125,000 bps)

Multidrop

Star Connections

T-Branch

Branching to

Branch Lines