Rockwell Automation 1203-GK5 DeviceNet Communications Module FRN 1.xxx-3.xxx - Manual (Page 30)

3-2 Installing the 1203-GK5 Module or 1336-GM5 Board
DeviceNet Cables
You can connect a device to a DeviceNet network using either a drop
line or daisy chain. A drop line connects a device directly to the
DeviceNet trunk. In Figure 3.1, Node 1 uses a drop line. A daisy
chain connects one device to another device. In Figure 3.1, Node 3 is
connected to the network using a daisy chain.
Figure 3.1
Example of 1203-GK5 Modules Connecting SCANport Products to DeviceNet
Determine how you are connecting the device to the network, and
then refer to the following guidelines:
• Select either a 5-pin connector or a 10-pin connector for the
cable. (Both are included with the 1203-GK5 module).
– Use the 5-pin connector if you are connecting a device to the
network using a drop line.
– Use the 10-pin connector if you are connecting a device using
a daisy chaining.
• Determine limitations of the trunk and drop cables. Refer to the
following table.
• Keep DeviceNet cables away from high power cables to guard
against introducing noise into your system.
For more information on DeviceNet cables and cable systems, refer to
the DeviceNet Cable System Planning and Installation Manual,
Publication DN-6.7.2.
DeviceNet
1305
SMC
1336 PLUS
PLC-5
Node 0
Node 1
Node 2
Node 3
Data Rates 125 Kbps 250 Kbps 500 Kbps
Thick Trunk Line 500 m (1,640 ft) 250 m (820 ft) 100 m (328 ft)
Thin Trunk Lengths 100 m (328 ft) 100 m (328 ft) 100 m (328 ft)
Maximum Drop Length 6 m (20 ft) 6 m (20 ft) 6 m (20 ft)
Cumulative Drop Budget 156 m (512 ft) 78 m (256 ft) 39 m (128 ft)