Siemens SINUMERIK 840D Description Of Functions page 397

11.03
;
N100 IDS=08 EVERY QUIT_PLC
N101 IDS=09 EVERY QUIT_PLC
N102 IDS=10 DO QUIT_MARKER = 0
N103 IDS=11 EVERY NOT_HALTE == 0 DO QUIT_TIMER3 = 0
N104 IDS=12 EVERY NOT_HALTE == 1 DO QUIT_TIMER3 = -1
N105 IDS=13 EVERY QUIT_REQUEST == 1 DO QUIT_MARKER =
; -------------------------------------------------------------
N110 IDS=14 DO NOT_HALT = NOT_HALTE AND (NOT_HALT OR NOT_QUIT
After 200 ms (T24) has elapsed acknowledgement is cancelled by transferring
the S7 variable with value "0" (MB194): Forced checking procedure of the
inputs and outputs is completed as soon as the variables have been sent in
FC21.
7.3.7 Protective door interlocking
Description In this example, the two-channel door switch checkback signal "Door closed
and interlocked" is used and connected to one input of the NCK I/Os and one
input of the PLC I/Os. The door switch is monitored through two channels by
the crosswise data comparison of the NCK and PLC inputs. The signal is
available as INSE[2]/TUERZUVER and INSEP[2]/"SPL".TUERZUVER for
programming the NCK-SPL and PLC-SPL.
The door solenoid is enabled by the PLC so that the request to "open door" is
made with a single-channel button (e.g. MCP). The signal "Door closed" from
the door switch is also made available to the PLC to automatically interlock the
door switch with the door solenoid when the protective door is closed.
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
(QUIT_TIMER3<0.4)
OR QUIT_MARKER)
Note
The time for timer 22 must be matched to the drop-out time of the contactors
used. The times for timers 23 and 24 are dependent on the PLC cycle time
and have to be appropriately adapted.
7 Configuring example
7.3 Safety Integrated with SPL
== 1 DO QUIT_REQUEST = 1
== 0 DO QUIT_REQUEST = 0
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