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Installation manual
CNC 8055
CNC 8055i
7.
CONCEPTS
SOFT: V02.2X
Open communication
7.21.3 Trace of characters sent and received
To help debug the open communication at a CNC, it is possible to do a trace of all characters that
are sent and received through the RS232 serial line.
The trace will be triggered with two PLC marks:
• RSTRAEN : PLC mark that enables the trace. From this instant on, it will capture the traces all
the characters sent/received through the serial line.
• RSTRATRG : PLC mark that triggers the trace. In order to pay attention to this signal, the trace
must've been enabled with the RSTRAEN signal. It captures 15 lines sent/received before and
after triggering this trace.
Once the trace has been triggered, it won't be triggered until the CNC is powered up again, until
it is saved into the file and/or until another ENABLE is done again.
The trace data may be displayed on the STATUS-DNC screen that offers the [OPENRS] softkey.
Pressing this softkey gives access to the open communication status screen.
As shown on the screen below, besides displaying the two communication buffers (COMBUF1 and
COMBUF2), there are two softkeys to activate and manage traces without having to use PLC
instructions.
PLC instructions are used to begin a trace, the [SAVE TRACE] softkey must be pressed to save
the trace into the KeyCF.
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