Siemens SIMATIC S5 Equipment Manual

R 02/92
Operating Instructions
2.7 General Interrupt Processing with S5–150 S/U
The operating system of the programmable controller scans the peripheral byte O (PYO) at each
block limit.
When an interrupt occurs, a jump to the correlated interrupt organization block (OB2 to OB9)
takes place.
In the programmable controller the bits 0.0 to 0.7 are directly allocated to the OBS 2 to OB9.
Bit 0.0 activates OB2, bit 0.1 activates OB3 and so on.
A bit of byte O can be allocated to any 1P 241.
This allows a maximum of 8
IPs with interrupt processing in the expansion unit.
In the programmable controller S5–150SIU, the 1P 241 may only be operated in the
Example:
x = closed
– = open
PYO DIP switch S2..
Jum
E
Master
Slave 1 Slave 6
too
No.
Bit O .10 Group interrupt
2
x
—
—
Bit 1 .9 –“-
3 –
x
—
Bit 2 .8 –“-
4 x
— —
Bit 3 .7 –“-
5
x
— —
Bit 4 .6 –“-
6
x
— —
Bit 5 .5 –“-
7
x
—
—
Bit 6 .4 –“-
8 – –
x
Bit 7 ,3
9 x
—
—
x
x x
.1 Changeover: OB2 only (o en)
8
—
x x
or OB2 to B9 (closed)
programmable controller S5– 150SIU does not have interrupt lines.
1P 241 Equipment Manual
@ Siemens AG 1989, Order No.: 6ES5 998-0KD21
2 – 13
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Siemens SIMATIC S5 Specifications

General

Product type designation	SIMATIC S5
Programming language	STEP 5
Digital inputs	Varies by model
Digital outputs	Varies by model
Analog inputs	Varies by model
Analog outputs	Varies by model
Supply voltage	24V DC
CPU Type	Varies by model
Memory	Varies by model
Digital I/O	Varies by model
Analog I/O	Varies by model
Communication	PROFIBUS
Operating Temperature	0°C to 60°C
Relative Humidity	5% to 95% (non-condensing)