Siemens SIMATIC S5-115U User Manual page 607

S5-115U Manual
Abb. Explanation
PB Program block
(with block call and return operations)
PB
Peripheral byte
- Digital inputs
- Analog inputs
- Digital outputs
- Analog outputs
PW Peripheral word
- Digital inputs
- Analog inputs
- Digital outputs
- Analog outputs
Q Output
QB Output byte
QW Output word
System data range
RS
- for load operations (supplementary operations) and
transfer operations (system operations)
- for bit test and set operations (system operations)
SB Sequence block
T Timer
- for the bit test and set operations (system operations)
1 See Section 7.3.1 for an overview of the organization blocks and their functions
Note
Please note that the execution times specified in A.2 to A.4 are guideline values. This is
determined by the processor architecture. The operation runs in the standard
processor or in the STEP 5 coprocessor, depending on CPU type.
The strict execution time is increased by a transfer time when changing from direct
processing in the coprocessor to interpretive processing in the standard processor.
These transfer times are contained in the execution times specified, based on an
operation mix.
EWA 4NEB 811 6130-02b
Permissible operand value range for
CPU 941 CPU 942
0 to 255
0 to 127
128 to 255
0 to 127
128 to 255
0 to 126
128 to 254
0 to 126
128 to 254
0 to 127.7
0 to 127
0 to 126
0 to 255
0.0 to 255.15
0 to 255
0 to 127
0.0 to 127.15
Operations List
CPU 943 CPU 944
A-3