Siemens SIMATIC Manual page 440

Analog modules
6.11 Analog input module SM 331, AI 6 x TC isolated (6ES7331-7PE10-0AB0)
Status
Several different calibration steps are required to calibrate a channel, depending on the
measurement type which has been set. The "Status" field indicates whether the last
calibration step was completed with or without a fault. If a fault occurs while a calibration step
is being executed, the fault is indicated here and the calibration for that channel is canceled.
All calibration values recorded up to that point are deleted. The calibration values which were
active before the user-calibration function was launched take effect once more.
Comment
The following entries are displayed in the "Comment" field:
● The number of calibration steps completed thus far
● The number of calibration steps which still need to be carried out for the channel to be
fully calibrated
● The calibration value currently being determined by the module
Instructions
The "Instructions" field indicates which actions the user has to personally carry out for the
currently active calibration step. Perform the actions indicated here and confirm by pressing
the "Continue" button. The module now executes the actions required for the currently active
calibration step. If this step is processed without a fault, the function proceeds to the next
calibration step.
If you want to avoid recording existing calibration values again during user calibration,
confirm the currently active calibration step by pressing the "Skip this step" button (rather
than "Continue"). In this case, the factory-set calibration value is used for the calibration step
which has been skipped (see "Comment" field).
440
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ