Emerson Bristol ControlWave Express, Instruction Manual

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ControlWave Express Instruction Manual (CI-ControlWave Express)
Revised Mar-2011 I/O Configuration and Wiring 3-7
3.3.2 Non-Isolated Discrete Outputs (DO) on TB3 of Process I/O
Board
Process I/O Board terminal block connector TB3 provides interface to
two dedicated non-isolated discrete outputs DOs – DO1 and DO2. In
addition, terminal block connector TB3 provides two additional points
that can serve as either discrete inputs or discrete outputs (DO3 and
DO4 when wired as outputs).
Table 3-4. Non-Isolated DO General Characteristics
Type Number
Supported
Characteristics
Discrete Outputs
(DO)
2 to 4 (on
TB3)
 Supports 30V operating range. Can
sink 400 mA max at 30Vdc (open
drain).
 Maximum output frequency of 20Hz.

Surge protection between signal and
ground.
Wiring
See
Figure 3-2
for wiring diagrams.
Software Configuration
To use data from these DOs you must include a
CWM_EIO
board in
your ControlWave project using ControlWave Designer’s I/O
Configurator, and then configure it. See the
ControlWave Designer
Programmer's Handbook
(D5125) for more information. That same
manual includes an
I/O Mapping
section that describes, for advanced
users, the I/O map for this board.
Note:
You must specify whether a discrete input/output is a DO or a
DI in ControlWave Designer’s I/O Configurator by
configuring a DO pin or a DI pin.