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Author Topic: interrupt routine in PLC?  (Read 1100 times)
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asahin11
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« on: April 16, 2008, 03:54:36 15:54 »

Hi all,

i wounder if the PLC systems have interrupt routine? if yesi how can i activate this routine(s)?

thanks, regards
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ausdev
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« Reply #1 on: April 22, 2008, 02:43:00 02:43 »

Most modern PLC's have some form of interrupt function.
Allen Bradley PLC's all employ a High speed interrupt for capturing encoder or pulse events
But the Micrologix range of PLC's has even more interrupt functions:
STI : selectable time interrupts. Program scan entera user set file every configured time period
UII : User select interrupt, the user sets an event (input or flag) and configures program file to enter upon event

Hope this helps!!
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asahin11
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« Reply #2 on: April 26, 2008, 10:08:09 10:08 »

thank you for your reply.

i wonder that program an interrupt routine in PLC is same as in microcontroller such as PIC, Motorola etc.?

regards,
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tuvoj
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« Reply #3 on: April 30, 2008, 09:03:20 09:03 »

Look at Z-Worlds PLC-related boards--they program in concurrent C/C++ and have full interrupt support that works very much as any other processor would...

Cheers-Tuvo
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