Simplex 4100 Operator's Manual page 37

SIMPLEX 4100 EWIS
OPERATOR MANUAL
FAULT / STATUS
NETWORK HAS FAILED
NETWORK GROUND
FAILED
NETWORK IS
OPERATING IN
DEGRADED STATE *7
Document No.: 4100-M010A
POSSIBLE CAUSE
• Section of the RS 485
loop faulty or
disconnected from
module.
May 1999
Page 27
SOLUTION
• Check section and
termination, or field
wiring.
• Check internal comms
connections.
• Ensure all modules are
plugged in.
Ensure modules are
installed in correct
order.
Issue 3.1