General Interrupt Routing In The Programmable Controllers - Siemens SIMATIC S5 Equipment Manual

Operating Instructions

General Interrupt Routing in the Programmable Controllers

Setting for the 1P 241 without interrupt processing
DIP Switch S2: All switches OPEN
DIP Switch S1: IRA to IRD OPEN
Settings for one 1P 241 with interrupt processing via hardware line
Depending on the interrupt line used, the corresponding switch on the module must be closed.
The switches for the unused lines must be opened.
IRA line
Settings for one 1P 241 with interrupt processing via peripheral byte O (PYO) and no additional
interrupt module.
The DIP switches for interrupt lines S1 .2/S1 .4/S1 .6/S1.8 must be opened.
The interrupt is output as a group interrupt via the peripheral byte O; in this case switch S2.1
must be opened.
Switch S2.2 must be closed. (After recognition of the address O and of the control signal MEMR,
the acknowledgement signal RDY goes to the CPU of the programmable controller.)
The switches S2.3 to S2.1 O must be closed.
Thus an evaluation is only possible in OB2 of the programmable controller.
2 – 6
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Switch
Switch
S1.2
x
—
—
—
x = closed – = open
Switch Switch
S1 .8
S1 .6
— —
—
x
—
x
— —
—
—
—
x