Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers Installation - Manual (Page 7)

SmartGuard 600 Controllers 7
Publication 1752-IN001C-EN-P - January 2009
Before You Begin
Before you install the controller, set its DeviceNet node address and communication
rate.
Set the Node Address
Use a small screwdriver to set the DeviceNet node address by using the two rotary
switches on the front panel of the controller. Use care not to scratch the switches.
Values from 00…63 are valid. The default setting is 63.
Follow these steps to set the node address.
1. Set the tens digit of the node address (decimal) by turning the left rotary
switch.
2. Set the ones digit by turning the right rotary switch.
3. To set the node address by using RSNetWorx for DeviceNet software, set the
rotary switches to a value from 64…99.
Setting the Communication Rate
The default communication rate for a DeviceNet network is 125 Kbps.
If you choose to use a different communication rate, the length of the trunkline and
types of cable determine which communication rates your application can support.
IMPORTANT
Turn off power to the controller before setting the node address or communication rate
via the switches.
Do not change the switch settings while the power supply is on. The controller will detect
this as a change in the configuration and will switch to the ABORT mode.
IMPORTANT
A node address duplication error will occur if the same node address is set for more than
one node.
DeviceNet Communication Rates and Cable Lengths
Communication
Rate Distance, Max Cumulative Drop
Line Length
Flat Cable Thick Cable Thin Cable
125 Kbps 420 m (1378 ft) 500 m (1640 ft) 100 m (328 ft) 156 m (512 ft)
250 Kbps 200 m (656 ft) 250 m (820 ft) 100 m (328 ft) 78 m (256 ft)
500 Kbps 75 m (246 ft) 100 m (328 ft) 100 m (328 ft) 39 m (128 ft)