Sinumerik Alarm 20170 Channel %1 machine data $AC_FIFO invalid

Sinumerik Alarm 20170 Channel %1 machine data $AC_FIFO invalid

Parameters:
%1 = Channel number

Definitions:
The structure of the FIFO variable $AC_FIFO – $AC_FIFO10 determined by the machine data $MC_NUM_AC_FIFO, $MC_START_AC_FIFO, $MC_LEN_AC_FIFO and $MC_MODE_AC_FIFO cannot be stored in the R parameter field defined in $MC_MM_NUM_R_PARAM.

Reactions:
– Alarm display.
– Interface signals are set.
– NC Start disable in this channel.

Remedy:
Please inform the authorized personnel/service department. Increase the number of the R parameters or reduce the FIFO elements. $MC_MM_NUM_R_PARAM = $MC_START_AC_FIFO + $MC_NUM_AC_FIFO x ($MC_LEN_AC_FIFO + 6)

Program Continuation:
Switch control OFF – ON.