Siemens SIMATIC S5 Equipment Manual

Operating Instructions R 02/92
4) Interrupt processing
OB2
– Save scratchpad flags
- Interrupt processing with FB 157 (BEF = KB)
– Evaluate the interrupt bits; in case of interrupt, jump on interrupt program
FBX1 or FBX2
– Reload the scratchpad flags
5) Interrupt programs
FBX1
– Change over to crawl speed
FBX2
– STOP
2 – 20
1P 241 Equipment Manual
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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)