User`s manual

10-17
Data link DL1 (master station) function
10
[4] Check flow
When a communication operation on the data link DL1 produces has an error, check the following.
(1) When the FAULT lamp (CU section of the display panel) on the JW-32CUM1 lights.
Respond according to the light ON/OFF indicators on the JW-32CUM1 FT display (CM-M section on
the display panel).
Light ON
Light OFF
Conditions
Special relay 07374 (option error)
is ON.
Special relay 07373 (I/O error)
is ON.
Store error code 60
(H) (table verify
error) in system memory #160.
Store error code 61(H) (switch verify
error) in system memory #160.
Store error code 73(H) (switch setting
error) in system memory #160.
Countermeasure
Find error module by system
memory #050.
Save program and data in floppy
diskette, then check referring the "7-7.
Troubleshooting."
- Save program and data in floppy
diskette, then check referring the
"7-7. Troubleshooting."
- Find error module by system
memory #050.
- Replace JW-32CUM1.
FT lamp of
JW-32CUM1
Replace JW-32CUM1.
(2) FAULT lamp of the JW-32CUM1 lights OFF
Measures can be taken according to the status indicated by the "ER, 1 to 80" lamps on the JW-
32CUM1.
Indication
lamp of JW-
32CUM1
Error contents Countermeasure
ER 1to80
Light
ON
60
(H)
Mis-set switch
(SW3, 4)
Recheck the switch.
Light
OFF
Communication
monitoring flag is
turned "OFF".
(turned "OFF"
sometime)
- Check operation mode setting switch SW3.
- Check whether there is disconnection, mis-wiring, or branched
wiring.
- Check that termination resistance switch (LT) is ON at only
both ends.
- Check that FG terminal is connected to the rack panel.
- Check that communication cable total length is less than
500 m.
- Check that communication cable does not close or crossed
with high voltage and power lines.
- Check that the recommended communication cable type is
used.
- Check that the installed control panel is grounded.
- Check slave station switch settings.
- Check that slave station power is ON.
- Replace slave module.
Light
ON
00
(H)
Set switch SW5
other than "1 to 3
and 7"
Recheck the switch.