Siemens SIMATIC S7-300 Manual For Migrating page 68

5 Software Conversion
Programming
Table 5-18
STEP 7 TIA Portal
All instructions are available in
all programming languages
Same performance for all
programming languages
Symbols and comments are
saved in CPU -> full upload
possible
Hardware identifier and
hardware constant – simplified
handling of system functions
Several branches in a network
Migration S7-300/S7-400 nach S7-1500
Entry ID: 109478811, V1.1,
In STEP 7 V5.x not all instructions were available in LAD/FBD
In TIA Portal all programming languages are directly compiled into
machine code and therefore offer all the same performance.
Now it is possible to carry out a full system upload.
The newly introduced "Hardware Identifier" and hardware
constants enable a symbolic programming without (logic) I/O
addresses.
Entry in the module settings
Entry of the hard constants in the tag table
Exemplary wiring on a block
In order to be able to use networks as logic units, it is possible to
add several branches in a network
05/2017
Description/advantage
68