
B–61863E/15
3. PMC I/O SIGNAL DISPLAY AND
INTERNAL RELAY DISPLAY
(PMCDGN)
PMC OPERATION (CRT/MDI)
441
This function checks the signal history which cannot be checked in the
status display. Using one- or two-byte addressing, the function records
a state when the signal changes. In two-byte addressing, discontinuous
addresses can be set.
Pressing the [TRACE] key on the PMCDGN screen displays the trace
screen when signals are being read. When signals are not being read, the
parameter setting screen for reading signals is displayed. After displaying
either screen, pressing the [TRCPRM] key on the trace screen displays the
parameter setting screen and pressing the [T.DISP] key on the parameter
setting screen displays the trace screen.
TITLE STATUS ALARM
T.DISP EXEC NEXT
M.SRCH ANALYS USRDGN
RET
TRACE
or
TRCPRM
or
STOP
Data to be used for reading signals needs to be specified to check the
signal history.
1) Parameters
TRACE MODE : Sets a mode used for reading signals
0 : 1-byte data
1 : 2-byte data (discontinuous addresses can be
specified)
2 : Word data (with continuous addresses)
ADDRESS TYPE : Sets addresses used
0 : PMC address
1 : Physical address
ADDRESS : Sets addresses at which a signal is traced
MASK DATA : Sets a masked bit or bits (signals can be read with
unnecessary bits masked)
Range : 00 to FF
The above trace parameters are retained if the power is turned off.
3.4
TRACE FUNCTION
(TRACE)
3.4.1
Operation
3.4.2
Parameter Setting
Screen