400262

Failure of handheld unit

Definitions:

Handheld unit (HHU) at handheld unit interface has failed. Timer of FB1 parameter HHUTimeout has expired.

Reactions:

Remedy:

- Alarm display.

Check the connection with the HHU. Do not use timer T0 through T9 in the user program. Increase the value of timer parameter HHU1Timeout. Set HHUCycl to the default value.

Program Continuation:

Internal