Honeywell 900U02-0100 User And Installation Manual page 184

Table 26.
PROGRAM Mode
In the PROGRAM Mode, active control processing is suspended. This mode is used for safe execution of
utility functions such as configuration download and calibration of analog inputs and outputs.
All outputs are Off.
RUN Mode
The Run Mode is used for normal operation of the controller; that is, for running the control configuration
that was previously downloaded. Configuration download and other utility functions can be performed in
this mode when the physical mode switch is placed in the Run/Program position. See the Designer
Software User Guide for precautions, restrictions, and procedures. Functions placed on the Safety
worksheet may not be forced or written to in this operational mode when the physical mode switch is
placed in the RUN position. The mode switch must be placed in the RUN position. for runtime on Safety
applications. The physical mode switch while in the RUN position prevents unintentional configuration
changes and is the recommended operational position when modifications to the configuration are not
anticipated.
170 ControlEdge HC900 Process & Safety Controller User and Installation Manual Revision 10
May 2019