Honeywell HC900 Installation And User Manual page 161

Operating Characteristics - Controller Modes
OFFLINE Mode
The OFFLINE Mode can be entered only from the RUN Mode, and is intended primarily for performing AI
calibration.
CAUTION
Because Function Blocks are not processed and outputs are Frozen in this mode,
inputs (that is, process values) can vary from the values that existed when the
OFFLINE Mode was entered.
Before entering the OFFLINE Mode:
• KNOW all potential consequences of suspending control action..
• PLAN for all operator actions required to preclude adverse consequences while
processing is suspended, and when resuming control processing.
• EXECUTE prudent control actions (such as placing all control loop in the Manual
Mode).
Failure to comply with these instructions may result in product damage.
Revision 19
06/14
HC900 Process Controller Installation and User Guide 149