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Figure 10: IOM37 with cover removed showing EOL
switch location
Setting the End-of-Line (EOL) switch
Each expansion module has an EOL switch, which, when
set to ON, sets the expansion module as a terminating
device on the bus. See Figure for the EOL switch location.
The default EOL switch position is Off.
Figure 11: End-of-Line switch positions
LED status and description table
Table 7: Status LEDs and descriptions of LED states
LED label
LED Color
POWER
Green
FAULT
Red
SA/FC BUS
Green
EOL
Amber
16
IOM3711 Input/Output Module Installation Guide
Normal LED State Description of LED States
Off Steady = No Supply Power or the expansion module's polyswitch/resettable
fuse is open. Check Output wiring for short circuits and cycle power to the
On Steady
expansion module.
On Steady = Power Connected
Off Steady = No Faults
On Steady = Device Fault; no application loaded; Main Code download required,
Off Steady
if the expansion module is in Boot mode, or a firmware mismatch exists between
the FEC and the ZFR1811 Wireless Field Bus Router.
Blink - 2 Hz = Download or Startup in progress, not ready for normal operation
Blink - 2 Hz = Data Transmission (normal communication)
Blink - 2 Hz
Off Steady = No Data Transmission (N/A - auto baud not supported)
On Steady = Communication lost, waiting to join communication ring
Off (Except on
On Steady = EOL switch in ON position
terminating
Off Steady = EOL switch in Off position
devices)
To set the EOL switch on an expansion module:
1.
Determine the physical location of the expansion
module on the SA or FC bus.
2.
Determine if the expansion module must be set as a
terminating device on the bus.
Note: The EOL termination rules for SA buses
and FC buses are different. Refer to the MS/TP
Communications Bus Technical Bulletin (LIT-12011034)
for detailed information regarding EOL termination
rules and EOL switch settings on SA and FC buses.
3.
If the expansion module is a terminating device
on the FC bus, set the EOL switch to ON. If the
expansion module is not a terminating device on the
bus, set the EOL switch to Off.
When an expansion module is connected to power with its
EOL switch set to ON, the amber EOL LED on the expan-
sion module cover is lit.
Commissioning the Expansion Modules
You commission expansion modules with the Controller
Configuration Tool (CCT) software, either via a Bluetooth
Wireless Commissioning Converter, a Zigbee wireless
®
dongle, through MAP 4.2+/BACnet Router (Mobile Access
Portal (MAP) Gateway at version 4.2 or above), or in
BACnet™ router mode when connected to an NAE or
NCE. Refer to the Controller Tool Help (LIT-12011147)
for detailed information on commissioning expansion
modules.
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