Setting The Fault Action - Allen-Bradley 1203-SSS User Manual

Setting the Fault Action

By default, when DF1 serial communications are disrupted (e.g., a serial
cable is disconnected) and control I/O is being transmitted, the serial
converter and connected product respond by faulting. You can set the
following actions:
Action
Fault
Stop
Zero data
Hold last
ATTENTION: Risk of injury or equipment damage exists.
Parameter 04 - [Comm Flt Action] lets you determine the action of
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the serial converter and connected product if communications are
disrupted. By default, this parameter faults the product. You can set this
parameter so that the product continues to run. Precautions should be
taken to ensure that the setting of this parameter does not create a
hazard of injury or equipment damage.
To change the fault action
• Set the value of Parameter 04 - [Comm Flt Action] to the desired
fault action.
Figure 3.8 Comm Flt Action Parameter in HyperTerminal
Press the UP ARROW or DOWN ARROW key to scroll
through the parameter list. Press the LEFT ARROW or
RIGHT ARROW key to modify parameter values. Press
the ENTER key to save a new value.
4> Comm Flt Action = Fault
Changes to this parameter take effect immediately. A reset is not
required.
Description
The product will fault.
The product will stop and not fault (DPI host products only).
The product is sent 0 for output data after a communications disruption.
This does not command a stop.
The product continues in its present state after a communications
disruption.
Configuring the Serial Converter 3-9