Chapter 5
– Troubleshooting
37
FCM II Installation Guide: 20160419 - Part # 2307
3) Select FCM COM
4) If screen display is the same as above, the FCM IIs are communicating with the MultiLoad II.
5) If an FCM II is not communicating, the message XX-ERR appears where XX is the address of the FCM that is
not communicating.
6) For a log of the occurances of dropped communications (including the registration as com loss when the
module has been powered down), select the menu option FCM HEALTH.
Should a module have a “ERR” state, double check that the device address has been set correctly and that two
devices do not share a duplicate address.
If all modules have an “ERR” state, check the bus communication
wiring (see section 2.5).
5.3
A
RE
T
HE
I
NPUTS
F
UNCTIONING
?
An input LED will only illuminate when a voltage of 5
– 30 Vdc appears across the input’s terminal pair. If a
problem occurs, verify the wiring shown in chapter 3.
5.4
A
RE
T
HE
O
UTPUTS
F
UNCTIONING
?
The output LED will illuminate in response to an output commanded on. If necessary, check the output terminal
with a voltmeter.
D I A G N O S T I C S M E N U
Card Reader Meters
COM Loopback Components
Serial Ports Additives
Network Test Custom Logic
Keypad
Display
Unicode
FCM Com
PCM Com
FCM Health
PCM Health
RCU
Bay
Preset
Next Prev Exit Enter
004 FCM COM DIAGNOSTICS
00-Ok
01-Ok
02-Ok
Exit
