Operation Initialization and Monitoring

Initialization Overview

Upon startup, the system performs a consistency check of the predefined configuration. In case of problem with the configuration, the setpoint programmer indicates the error and remains in initialization state.

Runtime Control Operation

Setpoint processing checks for two types of critical errors: parameter errors (not written in floating point format) and internal calculation errors (division by zero, overflow, etc.).

If	Then
an error in the setpoint calculation has been detected	the setpoint result is frozen
the error disappears	normal status is resumed.
a ramp includes two identical setpoints	a warning is displayed, while the system proceeds with the setpoint calculation. The system immediately switches to the next segment if the programmer is on the faulty segment.
a ramp has a rising or falling speed of zero (0.0)	a warning is displayed, while the system proceeds with the setpoint calculation. The calculated setpoint is frozen if the programmer is on the faulty segment.
a dwell has two distinct setpoints	a warning is displayed, while the system proceeds with the setpoint calculation. There is a rise or a fall depending on the setpoint values if the programmer is on the faulty segment.
the guaranteed dwell time is configured with a threshold value of 0.0	a warning is displayed, while the system proceeds with the setpoint calculation. Processing of the guaranteed dwell time is disabled if the programmer is on the faulty segment.

If the setpoint programmer is on the faulty segment, an additional warning displays the following message: "Error on current segment."

NOTE: For these warnings to be displayed, the execution time for each segment must necessarily be greater than the PLC task processing time.