Absolute and symbolic
operands
You can enter the operand absolutely or symbolically (using an
assignment list) as shown in the following example:
Absolute representation: :A I 1.4
Symbolic representation: :A -Motor1
For more information on absolute and symbolic programming, refer to
your STEP 5 manual.
Application of STEP 5
operations
The STEP 5 operation set enables you to do the following:
•• set or reset and combine binary values logically
•• load and transfer values
•• compare values and process them arithmetically
•• specify timer and counter values
•• convert number representations
•• call blocks and execute jumps within a block
and
•• influence program execution
Result of logic operation RLO
The central bit for controlling the program is the result of logic
operation RLO. This is obtained as a result of binary logic operations
and is influenced by some operations.
Section 3.5 describes the whole STEP 5 operation set and explains how
the RLO is obtained. This section also includes programming examples
for individual STEP 5 operations.
STEP 5 Programming Language
CPU 948 Programming Guide
C79000-G8576-C848-04
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