adept technology Cobra s800, User Manual, Page: 83 / 156

DeviceNet Communication Link
Adept Cobra s800 Inverted Robot User’s Guide, Rev C 83
6.8 DeviceNet Communication Link
DeviceNet is a communications link that connects industrial I/O devices to a
message-packeting network. All devices connect to the same backbone cable, eliminating
the need for individual wiring for each I/O point.
Adept incorporates the following DeviceNet-ready hardware in the Adept Cobra s-series
robot:
• Female connector for the robot tower; Micro-style 12 mm thread DIN female
connector (see Figure 6-5 on page 73 and Figure 6-13 on page 84 ).
• Male Micro-style 12 mm thread DIN connector at the robot base (see Figure 6-3 on
page 71 ).
• A nonstandard DeviceNet cable consisting of two shielded twisted pairs that
connect the above connectors. Adept considers this cabling to be a drop line with a
maximum total length of 6 meters and therefore uses the following wire sizes:
This means that total current on the power pairs must be limited to 2 A instead of
the standard 3 A in a DeviceNet trunk line. Because this is intended to be a
DeviceNet “drop line” with a maximum of 6 meters (16.5 feet), the full data rate
should be achievable. However, Adept has tested the internal cable only at 125k
baud.
See the Adept SmartController User’s Guide for physical installation. See the Instructions
for Adept Utility Programs for software setup.
Wire Adept
DeviceNet
“thin cable”
Power pairs 24 22
Signal pairs 28 24