Siemens S7-400PLC Spezifikationen PDF herunterladen (Seite 67)

Integrating FB20 in the PLC program

01.00|FB20|en

• bii_1_mot_fkt_asf

If the current is on 1/True here, the control function is ex-

ecuted using the current settings. If a value is changed, such as

the control functions or a position specification, the control

function is automatically started. With a signal change from

1/True to 0/False, the drive is stopped.

• bii_1_mot_fkt_start

The positive edge (signal change from 0/False to 1/True)

launches the control. With a signal change from 1/True to

0/False, the drive is stopped.

• bii_1_mot_fkt_start_pf

This signal represents the same function as the

I_CMD_START_POS input signal from the FB10. This means

that the control function is started with the signal change from

0/False on 1/True and is only stopped again when the function

has been executed/completed, or due to factors such as mal-

functions, stop signals or signal release.

• io_fkt_vfs_nr, reo_fkt_sw_i, reo_fkt_sw_pos

If the control functions could be completed, the outputs give

out the values that were set at the start of the control function.

Fig. 81

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Siemens S7-400PLC Spezifikationen Seite 67