Simplex 4100 - Page 94

Page 86 SIMPLEX 4100 EWIS
INSTALLATION MANUAL
Document No.: 4100-M011 March 1998 Issue 1.0
IF THE LCD DISPLAYS POSSIBLE CAUSE SOLUTION
NETWORK HAS FAILED
NETWORK GROUND
FAILED
NETWORK IS
OPERATING IN
DEGRADED STATE *7
• Section of the RS 485
loop faulty or
disconnected from
module.
• Check section and
termination, or field
wiring.
• Check internal comms
connections.
• Ensure all modules are
plugged in.
Ensure modules are
installed in correct
order.