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The 8RO, 8IO, and MultiFlex Outputs Input and Output Setup • 9-11
(all other output boards).
Table 9-3 shows how the fail-safe switch, jumpers,
and/or Form C contacts should be configured based on
how
you want the output to perform during both normal
operation and during network/power loss.
Table 9-3
- Output Board Fail-Safe and Switch Settings
Controller
Co
mmand vs.
Contact State
Fail
S
tate
Set
Switch
To
:
Set Jumper
or W
ire
Form C
Contacts
To:
ON=CLOSED
OFF=OPEN
ON UP N.C.
ON=CLOSED
OFF=OPEN
OFF UP N.O.
ON=OPEN
OFF=CLOSED
ON DOWN N.O.
ON=OPEN
OFF=CLOSED
OFF DOWN N.C.
9.2.3 Setting the Fail-Safe Dip
Switch
The fail-safe dip switch determines the sate of the relay
when communication is lost between the board and E2.
The fail-safe dip switches are labeled S2 on the 8RO, and
switch S3 on the 8IO. Each of the eight rockers on the fail-
safe dip switch corresponds to an output on the board. Set
the rocker UP to close the relay and turn the output ON
during network failure. Set the switch DOWN to open the
relay and turn the output OFF during network failure.
9.2.4 Relay Output Test Mode
Newly released versions of the MultiFlex I/O board
family and the 8ROSMT have a new feature that allows
relays to be manually energized and de-energized without
use of an override from a Hand-Held Terminal when the
board is offline. When a MultiFlex is in Relay Output Test
Mode, the output fail-safe dip switches may be used to
cycle the states of the relay outputs. The feature is
designed to help manufacturers of panels test output wir-
ing quickly and easily without need for a site controller or
HHT
.
Relay Output Test Mode is available in the following
produ
ct versions:
Board Type Version
8RO-SMT output board 1.20F01
and above
MultiFlex 168, 88, 168AO,
and
88AO combination input/
output boards
1.60F01
and above
MultiFlex 168DO combina-
tion input/output boards with
di
gital outputs
1.60F01
and above
MultiFlex 1616LAO and
16
16LDO combination input/
output board
1.30F01
and above
MultiFlex 1616L combina-
tion input/output board w/o
anal
og outputs
1.20F01
and above
To activate Relay Output Test Mode for MultiFlex, set
swit
ches 1-8 on DIP Switch banks S3 and S4 to the OFF
(LEFT) position. For 8ROSMT, set switches 1-8 on DIP
Switch bank S1 (NETWORK) to the OFF (DOWN) posi-
tion. The board will enter Relay Output Test Mode.
In Relay Output Test Mode, fail-safe dip switches 1-8
(l
ocated on the output board layer of MultiFlex I/O boards,
and next to switch bank S1 on the 8ROSMT) can be used
to change the state of the relays.
A fail-safe switch in the ON position will cause the
correspo
nding relay to be energized (i.e., OPEN on the
N.C. terminals, and CLOSED on the N.O. terminals). A
fail-safe switch in the OFF position will cause the relay to
be de-energized (i.e., CLOSED on the N.C. terminals and
OPEN on the N.O. terminals).
The LED that shows the output sta
te will also be ON
when the switch is ON and OFF when the switch is OFF.
To exit Relay Output Test Mode, set the address
swit
ches S3 and S4 to any position other than “all OFF.”
The fail-safe switches will resume normal operation.