5 simultaneously start/stop signals sta and stp, Simultaneously start/stop signals sta and stp – ADLINK PCI-8144 User Manual
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Signal Connections
3.5
Simultaneously Start/Stop Signals STA and STP
The PCI-8144 provides STA and STP signals, which enable simul-
taneous start/stop of motions on multiple axes. The STA and STP
signals are on CN1, STP @ pin 22 and STA @ pin 56.
The diagram below shows the onboard circuit. The STA and STP
signals of the four axes are tied together respectively.
The STP and STA signals are input signals. To operate the start
and stop action simultaneously, both software control and external
control are needed. With software control, the signals must be
generated from external event to the chip of PCD4541. Users can
also use an external open collector or switch to drive the STA/STP
signals for simultaneous start/stop.
If there are two or more PCI-8144 cards, tie all STA and all STP
signals of all cards resepectively for simultaneous start/stop con-
trol on all concerned axes. In this case, connect CN1 as below: