4. WIRING
IMR01Y36-E2
14
•
Termination resistors:
Install termination resistors to both ends of a trunk line in DeviceNet.
Specification of termination resistor: 121
Ω
,
±
1 %, 1/4 W (Metal film resistance)
•
Communications power supplies:
To use DeviceNet, connect a communications power supply (24 V DC) to the communications
connector of each node with a cable.
•
Communication length:
Maximum network length *
Communication
speed
Thick trunk length Thin trunk length
Maximum
drop length
Cumulative
drop length
125 kbps
500 m
156 m or less
250 kbps
250 m
100 m
6 m
78 m or less
500 kbps
100 m
39 m or less
* Maximum distance between nodes
For details of DeviceNet Network installation conditions and methods, refer to the
instruction manual of the DeviceNet master unit or DeviceNet Specifications.
DeviceNet specifications are available at ODVA (Open DeviceNet Vendor Association).
URL: http://www.odva.org
