July 2013 6.11 Monitoring functions 895
If the reaction time of the PLC for switching off the monitoring functions is not
sufficient, you must use a high-speed PLC input. The input defined with
MP4130.0 is evaluated directly by the NC and is thus independent of the PLC
cycle time. After transmission to the MC, the PLC input is processed in the
position control loop cycle. The run times for PLC inputs also apply to this
input, see page 1662.
In MP4130.0, enter the number of the PLC input that is to be defined as
high-speed PLC input. The number "0" is valid and means input number "0".
Define in MP4131.0 the activation criterion for the PLC input specified in
MP4130.0.
Enable MP4130.0 with W522 bit 0. As soon as the input is set, the
monitoring functions are switched off, the axes stopped, and the drive is
switched off. If the following error is greater than MP1030.x (positioning
window), the actual value is saved as nominal value. The monitoring
functions become active again if the high-speed PLC input is reset or
MP4130.0 has been disabled with W522 bit 0.
MP1150.1 Time period for which the monitoring function is to remain
off after the fast PLC input defined in MP4130.0 is set
Input: 0 to 65.535 [s]
Recommended: 0.2 to 0.5
MP4130.0 Number of the high-speed PLC input for switching off the
monitoring functions
Input: 0 to 20 000 [no. of the PLC input]
-1: Function inactive
MP4131.0 Activation criterion for fast PLC input for switching off the
monitoring functions
Input: 0: Activation at low level
1: Activation at high level
Only the PLC inputs of a PLD in slots 1 to 4 of a PLB 6xxx can be used as
fast PLC inputs.
Set Reset
W522 Enabling the fast PLC inputs
Bit 0: Fast PLC input is defined in
MP4130.0 for switching off the
monitoring functions
PLC PLC
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