Woodward MicroNet Simplex - Figure 6-7. CAN Cable Specification

Manual 26166V1 MicroNet Simplex & MicroNet Plus
Woodward 62
6.2.10—CAN Cable Specification
Thick trunk cable is preferred and recommended. Most CAN / DeviceNet (trademark of ODVA, Inc.) cable
is not rated for temperatures above 80 °C so be careful during installation to avoid hot routing areas.
Always use shielded cables for improved communications in industrial environments.
Impedance:
120 Ω 10% at 1 MHz
DC resistance:
< 7  per 1000 ft.
Cable capacitance:
12 pF/ft. at 1 kHz
Propagation delay
1.36 ns/ft. (maximum)
Data Pair:
19 strands, 1.0 mm² corresponds to 18 AWG, individually tinned, 3 twists/foot
Power Pair:
19 strands, 1.5 mm² corresponds to 15 AWG, individually tinned, 3 twists/foot
Drain / Shield Wire:
19 strands Tinned Copper shielding braid or shielding braid and foil
Cable type:
twisted pair cable. 2x2 lines
Bend Radius:
20x diameter during installation or 7x diameter fixed position
Signal attenuation:
0.13 dB/100 ft. @ 125 kHz (maximum)
0.25 dB/100 ft. @ 500 kHz (maximum)
0.40 dB/100 ft. @ 1000 kHz (maximum)
Figure 6-7. CAN Cable Specification
6.2.11. Recommended Bulk Cable
Cable manufacturer Turck and Belden are widely available in North America. Turck, Lumberg, and Lapp
Cable products are available in Europe. All cables below are suitable for DeviceNet trunk and drop
cabling. Be aware that cable vendors may not use the same wire colors on individual conductors.
Note: Turck and Lumberg can also provide custom length cord sets with connectors.
Note: Use only screw-on type CAN connectors
Table 6-3. Recommended Bulk Cable
Manufacturer Part Number Website
Belden 3082A DeviceNet Thick Cable–Grey www.belden.com
Belden 3083A DeviceNet Thick Cable–Yellow www.belden.com
Lapp Cable 2710-250 Unitronic DeviceNet Thick www.lappcable.com
Lumberg STL 613 www.lumbergusa.com
Turck Type 575, DeviceNet Thick Cable – Grey www.turck.com
6.2.12—Troubleshooting and Tuning
The MicroNet CPU module runs off-line and on-line diagnostics that display troubleshooting messages
through the debug Service Port and AppManager. Off-line diagnostics run automatically on power-up and
when the Reset switch is asserted. On-line diagnostics run during normal Control System operation when
the GAP application is active. More information on diagnostics tests, subsequent LED flash codes, and
serial port messages is contained in the VxWorks manual.
Released