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11.2.6
Master control
Function
The master control specifies which interface has the authorisation to control the EMCS-ST.
During operation, only one of the following interfaces can be the master control:
–
digital inputs/outputs (DIO) [Logic]
–
IO-Link (LK) [Logic]
–
Display and operating component (HMI)
The display and operating component (HMI) always has higher priority than the control interface
"digital inputs/outputs (DIO)" or "IO-Link (LK)" [Logic].
If the pushbutton actuator lock is released, incoming travel commands are blocked and not executed.
"Digital inputs/outputs (DIO)" or "IO-Link (LK)" master control
After switching on the power supplies and initialising the EMCS-ST, the master control is automatically
assigned to the "digital inputs/outputs (DIO)" control interface. The detection of an active IO-Link
master causes the master control to switch automatically to the "IO-Link" control interface. If the IO-
Link communication is interrupted, the master control automatically returns to the "digital inputs/out-
puts (DIO)" control interface.
Timing
The diagrams show the automatic transfer of the master control between the "digital inputs/outputs
(DIO)" and "IO-Link (LK)" [Logic] control interfaces.
1 IO-Link master active "control interface
[Logic]"
2 Master control "DIO"
3 Master control "IO-Link"
4 LED C/Q (system referenced)
5 LED C/Q (system not referenced)
Fig. 16 "Digital inputs/outputs (DIO)" or "IO-Link (LK)" master control
Drive system
39
Festo — EMCS-ST — 2020-04a
Содержание EMCS-ST
Страница 1: ...8123666 EMCS ST Integrated drive 8123666 2020 04a 8123668 Operating instructions ...
Страница 29: ...11 1 2 Dimension reference system Drive system 29 Festo EMCS ST 2020 04a ...
Страница 48: ...Fig 22 Single end to end operation Drive system 48 Festo EMCS ST 2020 04a ...
Страница 50: ...Fig 23 Stop and continue single end to end motion Drive system 50 Festo EMCS ST 2020 04a ...
Страница 54: ...Fig 25 End to end operation with press function Drive system 54 Festo EMCS ST 2020 04a ...
Страница 56: ...Fig 26 Stop and resume end to end travel with press function Drive system 56 Festo EMCS ST 2020 04a ...