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F-2 • E2 RX/BX/CX I&O Manual 026-1610 Rev 13 14-SEP-2011
Echelon Network Problems Faulty wiring. Check connections. Are wires
broken or loose? Check network
polarity (positive to positive/
negative to negative). Check for
wire damage.
Termination jumpers are set
incorrectly.
Check for proper setting of ter-
minating resistance jumpers.
Network segment should be ter-
minated on the two endpoints of
the daisy chain and unterminated
everywhere else. Refer to Sec-
tion 8.4, Device Termination.
Subnet (unit #) is set incorrectly. Each controller must have its
own subnet address. Refer to
Section 8.3, Echelon Network
Structuring (Daisy-Chains).
SYMPTOM POSSIBLE PROBLEM SOLUTION