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Issue
possible cause
relays are not enabled for
control/alarm/timer system
sensor is configured for
temp (high), pH, and or
conductivity relays do
timed control
not de-energize when set
point values are read
Network Troubleshooting
Issue
possible cause
no communication to
Are master/slave menus
properly configured?
networked unit(s)
Is termination relay enabled
in 1st & last IOEM and REM
on network?
Are slaves enabled and rec-
ognized at master?
more than one device is
configured as a master
slow network perfor-
nicked wires;
mance
improper wiring
Firmware Updater Troubleshooting
Issue
possible cause
Device "timed out" error
incorrect wiring of RS232
connection
IOEM/REM Safey and Installation Guide
Troubleshooting
possible solution
Verify menu configura-
tion- See Set Points,
Controls, and Alarm>relay
enable menus and
Timer System>relay enable
menus, 5X00 instrument
user manuals.
See Set Points, Controls,
and Alarm, 5X00 instru-
ment user manuals.
possible solution
See Networking - page
48.
See Termination Relay -
page 56.
See System → Communica-
tions → Network →Master
menu, 5X00 instrument
user manuals.
See System → Communica-
tions → Network →Master
menu, 5X00 instrument
user manuals.
Verify network wiring -
See Wire Network - page
48.
possible solution
See Connect RS232 Com-
munication Cable - page
58 .
86
Issue
possible cause
IOEM and REM does
incorrect wiring of RS232
not go into downloader
connection
mode when "program
device" is selected at
Firmware Updater
unit does not upload new
unit is not in downloader
code at downloader
mode
AquaManager Troubleshooting
Refer to AquaManager online Help for all AquaManager operation and troubleshooting
information.
IOEM/REM Safey and Installation Guide
Troubleshooting
possible solution
see "Status leds" on page
85 to confirm that expan-
sion module is in down-
loader.
see "Status leds" on page
85 to confirm that expan-
sion module is in down-
loader
87
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Table of Contents
Troubleshooting
