Siemens SIMATIC FM 456-2 Installation, Hardware, And Startup page 69

Application function module
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Interrupt Assignment
Table 4-6
Interrupt Assignment
Interrupt
NMI
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
FM 456-2 Application Function Module Installation, Hardware, and Startup
C79000-G7076-C458-01
Group signal for fault signals
System timer
Reserved for keyboard
Cascading of the 2nd interrupt controller
Reserved for COM2, otherwise free
Reserved for COM1, otherwise free
Reserved for LPT2, otherwise free
Reserved for floppy disk drive, otherwise free
Reserved for LPT1, otherwise free
Real time clock
Software interrupt, diverted to IRQ2
Reserved for IF 964-DP or free
Reserved for CP1401 or free
PS2 mouse, otherwise free
Numeric coprocessor
Hard disk
S7 system interrupt
FM 456-2 Functions and Technical Data
Function
4-15

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