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Chapter 9
Specific Features of the 1732E-OB8M8SR Scheduled Output Module
Configurable Point-Level
Output Fault States
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•
Normal Output – The output behaves like a normal output point such
that the module updates the output point upon receiving new I/O data
from the client controller.
•
Scheduled Mode – The output module is updated at a specific scheduled
time. The client controller sends the output data value along with the
associated time information to the output point. When the system time
as kept by the module reaches the scheduled time, the output value is
written. If the module system time is already past the scheduled time, the
output value is written immediately.
Each individual output point can provide high-speed scheduling of every
output signal based on time scheduling. The user can configure which output
points are to be used for scheduling purposes, leaving the other output points
for use as normal outputs.
Time-Scheduled Output Control
Time-scheduled output control is a feature available on the eight outputs of the
1732E-OB8M8SR module.
By using the time-scheduled output control feature, the module can turn the
outputs On or Off at a specific CIP Sync time. You can set the time setpoint (in
1 μs increments) for the output to turn On or Off in the application program.
The 1732E-OB8M8SR module manages the time locally as such that the output
is turned On or Off at the time specified.
MAOC Instructions with Time-Scheduled Output Control
The Motion Axis Output Cam (MAOC) instruction provides position-based
control of outputs, by using position and velocity information of any motion
axis. When the 1732E-OB8M8SR module is specified as the output source for
the MAOC instruction, then the MAOC instruction automatically handles the
time-based output scheduling and enables it on the eight outputs on the
1732E-OB8M8SR module. The benefit of using output scheduling in this
manner is that the resolution of the output control is improved from the
motion coarse update rate (typically 1...32 ms), to 100 μs.
To learn more about this feature and usage of the module, see Use the
Sequence of Events Input and Scheduled Output Modules on
Individual outputs can be independently configured to unique fault states,
either On, Off, or Hold in case of a communication failure or Program mode.
Through the Studio 5000 Logix Designer software, the user can set output
state during Program Mode and Fault Mode for channels 0...7. Valid values are
On, Off, and Hold.
Fault Duration can be set with 1, 2, 5, 10 seconds and Forever or 0.
Fault Final State can be set as On or Off. On the Configuration tab, it is grayed
out unless Fault Duration is something other than Forever.
To enable a fault state, follow these steps:
Rockwell Automation Publication 1732E-UM003D-EN-E - November 2021
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