95BSTEP 7 programming software
2.3 Easy-to-use tools
S7-1200 Programmable controller
32
System Manual, 11/2011, A5E02486680-05
●
To add an input or output, click the "Create" icon or right-click on an input stub for one of
the existing IN or OUT parameters and select the "Insert input" command.
●
To remove an input or output, right-click on the stub for one of the existing IN or OUT
parameters (when there are more than the original two inputs) and select the "Delete"
command.
2.3.5
Expandable instructions
Some of the more complex instructions are expandable, displaying only the key inputs and
outputs. To display the inputs and outputs, click the arrow at the bottom of the instruction.
2.3.6
Selecting a version for an instruction
The development and release cycles for certain sets of instructions (such as Modbus, PID
and motion) have created multiple released versions for these instructions. To help ensure
compatibility and migration with older projects, STEP 7 allows you to choose which version
of instruction to insert into your user program.
Click the icon on the instruction tree task card to enable the
headers and columns of the instruction tree.
To change the version of the instruction, select the
appropriate version from the drop-down list.
