Siemens SIMATIC S5 Equipment Manual

Programming Instructions
R 02/92
Direct parameterization (PB 11)
FD 134
KH – 00000225
(Actual value)
FW 132
KM – 0000000000010000
(Track identifier bit 4 set)
FD 138 KH – 00000200
(Initial setpoint track 4)
FD 142
KH – 00000300
(End setpoint track 4)
Indirect parameterization (FB 11)
The information about the actual value or the setpoints can be read in data double word DD 3 of
working data block DB 158. Their contents are identical to those of direct parameterization. In con-
trast, the track identifier bits are located in data word DW 5 of the same data block.
The programmer can now be used to specify new setpoints for track 4. For example:
DB 156 (User data block)
DW 30
KH – 0000
(Interrupt preelection)
DD 31
KH – 00000250
(Initial setpoint)
DD 33
KH – 00000350
(End setpoint)
After the values in user data block DB 156 are changed with the “control variable” PG function and
the status display is activated, the
setpoints in the flag double words (direct parameterization) or in
the data words of working data block DB 158 (indirect
parameterization) still show the old values.
The
setpoints are transferred to the module only when input 14.4 is activated.
If, as shown above, the actual value is between the old initial value (200) and the new initial value
(250), no track identifier bit is set after the
parameterization:
Direct parameterization (PB 11)
FD 134 KH – 00000225
(Actual value)
FW 132 KM – 0000000000000000
(Track identifier bit 4 not set)
FD 138
KH – 00000250
(Initial setpoint track 4)
FD 142 KH – 00000350
(End setpoint track 4)
Indirect parameterization (FB 11)
The desired information can also be obtained here, as described above, from data double word
DD 3 or data word DW 5 in working data block DB 158.
If positive pulses are acquired, starting with value 250, track identifier bit 4 is set. Starting with value
300, two track identifier bits (bit 4 and bit 5) have the signal status”1”. Above value 350, only bit 5 is
left.
9 – 54
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)