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ControlWave Instruction Manual (CI-ControlWave)
3.5 Digital Output (DO) Modules
DO modules provide 32 or 16 DOs to control signaling functions.
DO modules consist of a DO PCB with either a terminal block assembly
(for local termination) or a header block assembly (for remote
termination). DO modules also include an LED board, a terminal
housing assembly, as well as I/O assembly and mounting hardware.
Table 3-4 DO Module General Characteristics
Type Number
Supported
Characteristics
Digital Outputs
(DO)
32 or 16
Each DO supports/ includes:
Optically isolated open source
MOSFET with surge suppression that
is capable of handling 500mA at 31V.
Maximum operating frequency of 20
Hz.
Dedicated LED on module turns ON
when DO is ON.
Detailed Technical
Specifications
For detailed technical specifications, please see document CWPAC
available on our website http://www.emersonprocess.com/remote.
Configurations
The DO module (general part number
396358-XX-X
) comes in several
possible configurations, see
Table 3-5
:
Table 3-5. Isolated DO Module Configurations
Part Number Number of
DOs
Termination
Connector
Notes
396358-01-2 32 Local
396358-02-0 16 Local
396358-11-0 32 Remote
396358-12-8 16 Remote
396358-20-9
16
Remote
DO with read-back
Outputs set OFF on
power-up
An on-board DO load register stores output data. At power-up the load
register clears and sets all outputs to “OFF.”
Digital Output with
Readback
Newer digital output modules with 16 outputs support read-back
capability for use in redundant systems. A DO with read-back module
operating in online mode monitors the DO values of its standby
counterpart in order to verify that standby DO values are consistent
should a failover occur. Depending upon software configuration
settings; a failover can be prevented if they are inconsistent. A
standard DO module used in a redundant system does not perform this
monitoring; therefore the potential exists to failover to a backup DO
Revised Nov-2010
I/O Modules
3-13
Содержание ControlWave
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