Clearing broadcast signals
Signals are generally cleared after consumption by an assigned WAIT. In addition, normal signals, i.e. non-broadcast signals, are cleared implicitly in the case of an NC-Reset (see also Chapter Reset handling). Since broadcast signals are not cleared by a WAIT unless the consumption counter is specified, they must be removed explicitly. An additional NC-command exists for this purpose. This NC-command can also be used to clear normal signals whereby, in this case, the identification number and the addressed channel must correspond.
If a single signal is specified for clearing, only one signal is removed if more than one identical signals are present. On the other hand, all signals are removed if a signal range is specified [ID; IDMAX], i.e. including several identical signal numbers within this range if they exist.
#SIGNAL REMOVE [<mode>] [ID<sgn_nr> |IDMIN<sgn_nr> [IDMAX<sgn_nr>] {CH<chan_nr>} ] (non-modal)<mode> Synchronization mode
Valid | Significance |
|---|---|
--- | Synchronization on decoder level (basic setting). This synchronization is required for instance if it is necessary to synchronize with parameters or variables. |
SYN | Synchronization on interpolator level. This synchronization is required in the case of real-time requests, e.g. synchronization of two machining units of a multi-column machine |
ID<sgn_nr>Number of the broadcast signal to be cleared. Positive integer
IDMIN<sgn_nr> First broadcast signal of a range to be cleared.
(Also alternatively to ID<sgn_nr>). Positive integer
IDMAX<sgn_nr> Last broadcast signal of a range to be cleared. Positive integer
CH<chan_nr> Channel number:
Valid values | Significance |
|---|---|
1...Max. number of channels(1) | Number of the channel for which the signal to be cleared is destined. |
--- | If no channel number is specified, the corresponding broadcast signal is cleared. |
(1)see [6]-2.4
Programming example
(Deleting of a broadcast signal 812, Synchronization on DEC-level)
N500 #SIGNAL REMOVE [ID812] oder #SIGNAL REMOVE [IDMIN812]
(Deleting of the signal 812 to Kanal2, Synchronization on DEC-level)
N500 #SIGNAL REMOVE [ID812 CH2]
(Deleting of all broadcast signals between 812-820, Synchronization on DEC-level)
N500 #SIGNAL REMOVE [IDMIN812 IDMAX820] oder #SIGNAL REMOVE [ID812 IDMAX820]
(Deleting of all signals 812 to Kanal 1, Synchronization on DEC-level)
N500 #SIGNAL REMOVE [ID812 IDMAX812 CH1]
(Deleting of the broadcast signals 813, Synchronization on IPO-level)
N600 #SIGNAL REMOVE SYN [ID813]