Panasonic LP-M Series, Руководство по последовательной связи

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175
Troubles Causes Measures
Serial communication
control fails
Communication parameter settings
are changed when the backup data is
restored to the laser marker.
Check the communication parameter settings.
If Ethernet is used, confirm the IP address and
other parameters.
When the backup data is restored to the laser
marker, communication parameter settings are
overwritten with the backup data.
Command data is not received from
external equipment.
Using commercially available line monitor or
protocol analyzer, check if external equipment
transmits data.
Communication data format is
incorrect.
Check if format of communication data command
transmitted from external equipment is correct.
• Check if start code STX (02: HEX) is placed at
beginning of transmitted data.
• Check if the delimiter is added to the end of the
transmission data. ([CR] (0D: HEX) or [CR+LF]
(0D: HEX 0A: HEX) for RS-232C, [CR] (0D:
HEX) for Ethernet)
READY signal is not
turned to ON.
Alarm or error occurs.
Release the alarm or warning referring to the
measures for the corresponding error code.
Laser has not been pumped. Refer to “The laser is not pumped”.
Internal shutter is closed.
Open the internal shutter.
• When controlling the shutter by I/O signal,
turn off DIP switch No. 2 and turn on terminal
SHUTTER in terminal block.
• When controlling the shutter by serial
communication, turn on DIP switch No. 2 and
send shutter command (SHT).
• To change the DIP setting, the switch of the
laser marker should be set at power OFF state.
LP-Mxxx-S type:
Since the returning to the original
position of the laser gate is not
performed correctly, the laser gate
cannot be opened.
Input the laser gate control signals for the
returning to the original position after start-up of
the laser marker.
LP-Mxxx-S type:
The laser gate is closed.
Input the control signal to [L-GATE OP IN] on
the laser gate terminal from the external control
device.
The changing operation of the file data
is unfinished.
It takes from tens of msec. to several seconds to
complete the changing file data.
During that time, READY output is in OFF status.
Enter marking trigger signal after making sure that
[READY] output is on if you want to change file to
another one.
Marking data is not sent to the laser
marker from the external devices, in
case of using Rank Function, External
Offset Function, or Serial Data Input
Function.
If rank, external offset and serial data functions
are enabled while marking conditions are not
yet specified, enter respective data per marking
cycle.
Enter marking trigger signal after making sure
that [READY] output is on or checking status of
READY using status request command.
Under serial communication control:
Mark trigger signal is ON while the
command reception permission (MKM
command) is set to “Reception mode
ON”.
Set “reception mode OFF” for command reception
permission (MKM command). Before entering
marking trigger signal, use status request
command [STS] to make sure that READY is on.
ME-LPMSZ-SR-9