Nortech Systems RS-422/485 ユーザーズマニュアル

To connect DeviceNet components to the Adept DeviceNet Scanner, connect a dropline to 
the female Micro-style 12 mm thread DIN connector on the front of the SmartController. 
Then you must configure the DeviceNet Scanner correctly using the 

CONFIG_C

 

program. See the 

 for information on using 

CONFIG_C. 

See the 

 monitor command in the

 for 

detailed information about the DeviceNet software setup in V

+

.

NOTE: Adept does not supply 24V on the SmartController to power the 
DeviceNet bus. A separate power supply is required to power the 
components on the DeviceNet bus.

The DeviceNet physical layer and media specifications are published in the ODVA 
manual, chapter 9, volume 1. It describes possible topologies and components of the 
physical layer of the DeviceNet.

 shows several possible topologies. The DeviceNet specifications also specify 

system grounding, mixing of thick and thin cable media, termination, and power 
distribution. 

The basic topology is the trunkline-dropline topology. This topology uses separate 
twisted-pair buses for the distribution of signals and power. The specifications allow 
trunklines and droplines made of thick or thin cable. The baud rate, maximum distance 
from end-to-end of the network, and cable size are dependent on each other. See 

 for further details.

The DeviceNet specification requires that the 

CAN_H and CAN_L signal lines tolerate voltages up to 
18V. Since the supply voltage exceeds 18V, improperly 
wiring the supply voltage to these signal lines may cause 
permanent damage.