Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 308)

Publication 1760-UM002B-EN-P - March 2005
6-2 Pico-Link and Point-to-Point Serial Connections
Pico-Link Topologies,
Addressing and Functions The Pico-Link allows the configuration of a line topology. There are two
wiring methods which can be used for the required addressing options:
• “Loop through the unit” wiring arrangement,
• Wiring arrangement using a T connector and a spur line.
Loop Through the Unit Wiring Method
With this wiring method it is possible to implement the addressing of the
stations via station 1 or the PicoSoft Pro. If the line is interrupted, the network
is no longer operational from this point in the network.
T-Connector and Spur Line
Each device must be addressed individually with this wiring method by:
• Downloading the program
• Downloading the address with PicoSoft Pro
• Using the display or
• The device is already assigned an address.
If a spur line is removed on a station, all other devices in the network remain
functional.
IMPORTANT
CAN has been used as the basis for the design of the
Pico-Link. The messages have been adapted and
optimized to suit the requirements of the Pico GFX-70
environment.
IMPORTANT
The spur line between the T connector and the
device must not exceed 0.3 m. Otherwise
communication via the Pico-Link may be impaired.