Rockwell Automation 1788 NetLinx Media Checker Users Manual - Manual (Page 34)

34 Calculating the Distance to a Short
1788-UM002A-US-P – April 2000
Table 13. DeviceNet and DH+/RIO Cable Resistances
Cable Type
Data Pair
(H, L)
Power Pair
(+,-) Shield
DeviceNet
Thick 0.0069 Ω /ft
0.0226
Ω
/m
0.0032 Ω /ft
0.0105
Ω
/m
0.00175 Ω /ft
0.00575
Ω
/m
DeviceNet
Thin 0.028
Ω
/ft
0.0918
Ω
/m
0.01617
Ω
/ft
0.053
Ω
/m
0.0032
Ω
/ft
0.0105
Ω
/m
DeviceNet
KwikLink 0.00404
Ω
/ft
0.01325
Ω
/m
0.00404
Ω
/ft
0.01325
Ω
/m
NA
DH+/RIO 0.00944
Ω
/ft
0.031
Ω
/m
NA 0.0041
Ω
/ft
0.0135
Ω
/m
Table 14. ControlNet Cable Resistances
Cable Type Center
Conductor
Shield
ControlNet RG6
0.028
Ω
/ft
0.0918
Ω
/m
0.0036
Ω
/ft
0.0118
Ω
/m
ControlNet RG6F
0.0099
Ω
/ft
0.0325
Ω
/m
0.0029
Ω
/ft
0.0095
Ω
/m
ControlNet DS3/4
0.0255
Ω
/ft
0.0836
Ω
/m
0.0032
Ω
/ft
0.0105
Ω
/m