6-11
Chapter 6 4100ES SPS Field Wiring
SPS IDNet Wiring
Class A Wiring 1. Route wire (between 12 and 18 AWG) from the B+, B-, and SHIELD outputs on TB1 of the
SPS to the appropriate inputs on a peripheral IDNet appliance.
2. Route wire from the first IDNet appliance to the next one. Repeat for each appliance.
3. Route wire from the last IDNet appliance to the A+ and A- inputs on TB1 of the SPS.
Figure 6-6. Class A Wiring
B+ B- SHLD
IDNet
A+
P1
3
2
1
A-
IDNet
DEVICE
IDNet
DEVICE
IDNet
DEVICE
IDNet LOOP
(CLASS A / STYLE G)
IMPORTANT:
x Max. allowed wire capacitance is .58uF.
Maximum distance to any device is 2500
feet (126-250 devices) or 4000 feet (up to
125 devices)
x Class A wiring must consider the above
limits under worst-case fault conditions.
Neither the "A" or "B" terminals may
exceed the distances noted above.
IDNet
DEVICE
IDNet
DEVICE
IDNet
DEVICE
Ferrite beads
required.