January 2012 1.2 NC Software 548 328-02 33
Enhanced: Compilation of PLC program
• If the PLC program has already been compiled in the PLC Programming
mode of operation before the Power interrupted message has been
acknowledged, the PLC program will not be compiled again when the
message is acknowledged. This change makes it possible to observe
the PLC operands with the integrated oscilloscope during start-up of the
PLC program:
- Start the control, do not acknowledge the Power interrupted
message.
- Compile the PLC program in the PLC Programming mode of operation.
- Activate the integrated oscilloscope in order to observe the desired
PLC operands and start the measurement.
- Acknowledge the Power interrupted message now for the control to
start the PLC program.
• Now a PLC program is compiled even if the machine parameters refer
to symbolic names of PLC operands that are not defined in the PLC
program. The control issues an error message for every undefined
symbolic name and then compiles the PLC program.
Enhanced: Commands for string processing
Symbolic operands (B/W/D operands) can now be used for indexed access
to the string operands "S" or the PLC error and dialog files, See "Commands
for String Processing" on page 1723.
Enhanced: WATCH LIST and TRACE function
New TYPE column: Type (M for marker, B for byte, W for word, etc.) of the
PLC operand, See "The WATCH LIST function" on page 1491.
The ADD TO WATCH LIST soft key can be used to transfer the PLC operands
of the currently highlighted line to the WATCH LIST, See "The TRACE
function" on page 1495.
Enhanced: EDIT function
The features and the operation of the editor were changed. The editor is
now a full-fledged ASCII editor. The cursor can be positioned in all directions
and line breaks can be inserted, See "The EDIT function" on page 1498.
New: Moving PLC axes with the handwheel
It is now possible to assign a PLC axis to a handwheel via Module 9036. In
the El. Handwheel mode of operation, the machine operator can use the
axis keys to select a PLC axis and move it with the handwheel.
A PLC program with undefined symbolic PLC operands can lead to
hazardous behavior of the machine! It is essential that you check whether
the parameters for configuring the M functions (CfgPlcMStrobe) contain
meaningful strobe definitions. The data of strobe definitions must be
mapped onto defined PLC operands.
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