Emerson DL8000 - Discrete Output (DO) Modules; DL8000 Powered Pulse Input Module Field Wiring

DL8000 Preset Instruction Manual
3-14 Modules Revised February-2016
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-
12KHz PI FILTER &
LEVEL DETECTION
+T
METER COIL
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DOC0511A
H
L
H
L
C
O
M
C
H
2
C
H
1
+
T
PI
2 CHAN
OPEN DRAIN TYPE DEVICE
OR
OPEN COLLECTOR
ROC800 POWERED
C
O
M
Figure 3-12. DL8000 Powered Pulse Input Module Field Wiring
Caution
You can induce ground loops by tying commons from various modules
together.
3.2.9 Discrete Output (DO) Modules
The five-channel Discrete Output (DO) module provides two-state
outputs to energize solid-state relays and power small electrical loads.
These are solid-state relays. A Discrete Output may be set to send a
pulse to a specified device. Discrete Outputs are high/low outputs used
to turn equipment on/off. The DO module provides LEDs that light
when each output is active.
You can configure DO modules as latched, toggled, momentary, or
Timed Duration Outputs (TDO). You can also configure the DO to
either retain the last value on reset or use a user-specified fail-safe
value. Refer to the ROCLINK 800 Configuration Software User Manual
(for DL8000) (part D301259X012).
When a request is made to change the state of a DO, the request is
immediately sent to the DO module. There is no scan time associated
with a DO. Under normal operating conditions, the DO channel
registers the change within 2 milliseconds. If the DO is in momentary or
toggle mode, the minimum time on that can be entered is 4
milliseconds.
Figure 3-13 displays the field wiring connections to the output circuit of
the DO module.
Representative
Internal Circuit
Field Wiring