Table of Contents - TG Drives

PL2 MNEMONICS
TRACE RELATED MNEMONICS
Trace Related Mnemonics
Used in combination with SET and GET
instructions to simplify indexing into extended
registers.
Regencode R100,4,5 would give the adress to
the register
Pg.Posspeed.(32768+256*group+member)
The Trace function allows the user to trace the execution of the PL program. The
trace will save a time stamp and the current line number where code is executing.
There is room for 512 entries in the buffer. If the PL program is modified
after/during the trace, it will make the trace invalid. To conserve space in the buffer,
the tracing can be limited to interesting parts, by use of the Trace OFF/Trace
CONT command or a snapshot that fills the buffer, Trace ONCE. To inspect the
trace buffer content, use the TLIST command. When the Trace is active it slows
down the PL2 rate to about 70 % of the normal. That means if Trace is used for
measuring execution speed that has to be compensated for. It also states that
leaving trace active during normal operation is a waste of resources!!! To debug an
error situation the Trace can be used like this:
Turn on the Trace function with TRACE ON at the beginning of the program. Put
TRACE OFF at the end of the error handling routine. When the error occurs there
will be a log of the last 512 lines of PL2 code that lead up to the error.
Trace ON Initializes the trace buffer and starts trace.
Trace OFF Stops the trace.
Trace CONT Continue trace without initializing the buffer.
Trace ONCE Trace until buffer is full.(Single shot trace)
LAN1/ LAN1 RELATED MNEMONICS
SetObj Lan1 Sval Map the content in MsgObjLan1 to the priority
level specified in Sval.
For a detailed description see the LAN1
group.
GetObj Lan1 Sval Fill in the MsgObjLan1 with the message
object at priority level Sval.
For a detailed description see the LAN1
group.
Read Lan1 Reg, len, level Read len bytes and put in register Reg from
the buffer for message object at level. Where
len and level are Sval.
For a detailed description see the LAN1
group. If len is specified as negative the data
will be byte swapped.
Write Lan1 Reg, len, level Write len bytes to the buffer for message
object at level from register Reg.
For a detailed description see the LAN1
group. If len is specified as negative the data
will be byte swapped.
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001
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