Rockwell Automation 2080 Micro800 Digital and Analog Plug-in Modules - Manual (Page 52)

44 Rockwell Automation Publication 2080-UM004B-EN-E - December 2013
Appendix 5 DeviceNet Plug-in – 2080-DNET20
Calculate Voltage Requirement
SUM {[(Ln * (Rc)) + (Nt * (0.005))] * In} < 4.65 V
Where:
Ln = Length in meter or feet
Rc = Resistance of the cable per meter or feet
(Kwiklink flat media = 0.019 ohms/meter or 0.0058/feet)
Nt = Number of the node starting from 1 close to power supply and increasing.
Dual Source Power Supply (both ends – Kwiklink Lite Cable)
9.00
8.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
0 (0)
40
(131) 80
(262) 120
(394) 160
(525) 200
(656) 240
(787) 280
(919) 320
(1050) 360
(1181) 400
(1312)
Dual source power supply (both ends – Kwiklink Lite Cable)
Network length
in meters (ft) Current, max Network length
in meters (ft) Current, max
0 (0) 8.00
(1)
(1) Exceeds NEC CL2/CECode 4A limit.
220 (722) 4.69
20 (66) 8.00 240 (787) 4.30
40 (131) 8.00 260 (853) 3.97
60 (197) 8.00 280 (919) 3.69
80 (262) 8.00 300 (984) 3.44
100 (328) 8.00 320 (1050) 3.23
120 (394) 8.00 340 (1115) 3.04
140 (459) 7.35 360 (1181) 2.87
160 (525) 6.43 380 (1247) 2.72
180 (591) 5.72 400 (1312) 2.59
200 (656) 5.16 420 (1378) 2.46