Siemens SIMATIC S5 Equipment Manual

Programming instructions
R 02/92
Indirect parameterization (FB 12)
DB 158
(Working data block)
DD 3
KH = 00000572
(Actual value)
DD 5
KM = 0000000000000000
(Track identifier bits)
DD 3
KH = 00000250
(Initial setpoint track 4)
DD 3
KH = 00000350
(End setpoint track 4)
The actual value, initial cam value and end cam value cannot be output simultaneously when indi-
rect parameterization is used.
DB 156
(User data)
DW 30
KH = 0001
(Interrupt preelection)
DD 31
KH = 00000250
(Initial setpoint)
DD 33
KH = 00000350
(End setpoint)
During parameterization an interrupt can be triggered, depending on the position of the actual
value. If this occurs, the output Q 5.7/Q 9.7 is set. Via input 15.7, the output Q 5 .7/Q 9.7 can be
reset.
When (in the example) the actual value reaches the end cam value for track 4, an interrupt is trig-
gered. This occurs independently from the direction from which the actual value approaches
when no interrupt direction is inhibited with the “inhibit interrupt depending on direction” special
function.
It is also possible to supply both setpoints with interrupt identifiers. Then, whenever the actual
value enters or leaves track 4, an interrupt is triggered. The screen display then appears as fol-
lows:
Direct parameterization (PB 12)
FD 134
KH – 00000311
FW 132
KM – 0000000000110000
FD 138 KH – 00400250
FD 142
KH – 00400350
Indirect
parameterization (FB 12)
DB 158
DD 3 KH = 00000311
DW 5
KM = 0000000000110000
DD 3 KH = 00000250
DD 3
KH = 00000350
(Actual value)
(Track identifier bits)
(Initial setpoint track 4)
(End setpoint track 4)
(Working data block)
(Actual value)
(Track identifier bits)
(Initial setpoint track 4)
(End setpoint track 4)
The actual value, initial cam value and end cam value cannot be output simultaneously when indi-
rect parameterization is used.
DB 156
(User data block)
DW 30 KH – 0101
(Interrupt preelection)
DD 31
KH – 00000250
(Initial setpoint)
DD 33
KH – 00000350
(End setpoint)
In accordance with the above example, all functions and all operating modes of the digital position
decoder IP 241 can be tested by specific entries into data block DB 156.
9 – 58
1P 241 Equipment Manual
@ Siemens AG 1989, Order No.: 6ES5 998-0KD21
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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)