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3BSE 002 415R701 Rev A 1-73
All I/O modules are supervised at system start-up as well as under normal operation. The status
of a module is indicated with front mounted LEDs; RUN (R), green, normal operation, FAULT
(F), red, when a fault is detected, WARNING (W), yellow, when a channel fault is detected and
OUTPUT SET AS PREDETERMINED (OSP), yellow, when the module has lost
communication. Detailed status and diagnostics are available on the System Status Displays of
the Operator Station.
All I/O modules can be replaced with both system power and field power connected.
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The digital I/O modules all have galvanic isolation relative to chassis ground. All modules have
LEDs to indicate channel status (on/off) and the standard set of module status indicators. Some
modules has also a LED per channel indicating fault.
24 V and 48V modules have two isolated groups with 8 channels.each Each group has a field
power status input to indicate presence of field power. Loss of field power is indicated on
Warning LED and channel status set to error. 120/250 V and modules with intrinsically safe
interface modules have individually isolated channels. The input module can be configured to
monitor field power status. Outputs do not need external inductive load suppression components.
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DI810 Digital Input 24 V d.c., 2 x 8 channels. Current sink.
Rated isolation voltage 50 V.
DI811 Digital Input 48 V d.c. 2 x 8 channels. Current sink.
Rated isolation voltage 50 V.
DI814 Digital Input 24 V d.c. 2 x 8 channels, current source.
Rated isolation voltage 50 V.
DI820 Digital Input 120 V a.c. 8 x 1 channels. Current sink.
Rated isolation voltage 250 V.
DI821 Digital Input 230 V a.c. 8 x 1 channels. Current sink.
Rated isolation voltage 250 V.
DI830 16 channels (2x8) 24V d.c., current sink, with sequence of event
(SOE) handling.
DI831 16 channels (2x8) 48V d.c., current sink, with sequence of event
(SOE) handling.
DI885 Digital Input 24/48 V d.c. 1 x 8 channels, Current sink with
sequence of event (SOE) handling.
Rated isolation voltage 50 V.
DI890 Digital Input, Intrinsically safe interface 8 x 1 channels
Rated isolation voltage 50 V.
DO810 Digital Output 24 V d.c. 0.5 A Current source short circuit proof,
2 x 8 channels. Rated isolation voltage 50 V.