Siemens Simatic Field PG Manual page 47

Performing a Teach-in Cycle
Broadly speaking, the procedure for a teach-in cycle is as follows:
1. Power supply operation: Charge the battery until it is full (battery display on
the device is green). Duration: About 3 hours for an empty battery.
2. Battery operation: Discharge the battery until the battery display on the device
changes from orange to red. To do this, remove the power supply unit from the
Field PG.
Duration: approximately 2–4 hours.
3. Power supply operation: Charge the battery for about 30 minutes; to do this
connect the power supply unit again.
You can carry out an automatic teach-in cycle with the "Field PG" panel (see
section 3.5).
SIMATIC Field PG Manual
A5E00075760-04
Configuring And Operating The SIMATIC Field PG
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