Panasonic LP-GS Series Serial Communication Command Manual page 165

⿎ External control
Troubles
Laser marker is not in remote
mode.
The connection with external
Signals from outside devices is inadequate.
are refused
There are noises coming
from surrounding equipment.
Type of connection cable
used is inappropriate.
Communication parameter
settings are incorrect.
The communication setting
was changed at the time of
backup file restoration.
Command data is not
Control by serial
received from external
communication fails
equipment.
Communication data format
(start code) is inadequate.
Communication data format
(end code) is inadequate.
Command mode (LP-400/V
compatibility setting) is wrong.
Causes
• Select the remote mode by following the procedure indicated
in Setup/Maintenance Guide.
• Check if the entering method of the remote mode set in the
system settings screen (I/O or PC software) and the actual
control method are consistent.
• If the entering method of the remote mode is changed in the
system settings screen, restart the laser marker.
• Check connections with external equipment for mis-
connection, disconnection or contact failure due to any loose
connector.
• Check for continuity using tester or the like.
Protect laser marker against noises as follows:
• Securely ground the frame ground terminal of laser marker or
surrounding equipment.
• Isolate power and signal lines from each other if they have
been routed in parallel.
• Shield signal line.
• Isolate power supply for laser marker from other equipment.
• Use noise cut transformer to absorb noises from power
supply.
• Check the connection method described in Setup/
Maintenance Guide for proper wiring.
• Match communication parameter settings to external
equipment.
• If the Ethernet communication settings or RS-232C usage are
changed, restart the laser marker.
• When using RS-232C, specify the "Flow control" to "None"
at the communication port settings of the external control
device.
Check the communication setting. If Ethernet is used, check
the IP address, etc. When the backup file is restored, the
communication setting is overwritten by the backup data.
Using commercially available line monitor or protocol analyzer,
check if the external equipment transmits data.
Check if the start code specified in laser marker system settings
screen and start code of the transmitted data are consistent.
• Check if an end code is placed at the end of the transmitted
data.
• For RS-232C, check if the end code is the value specified in
the laser marker system settings screen.
• If you want to use the same command format with the
previous models of LP-400/LP-V series, enable "LP-400/V
compatibility" in system settings of Laser Marker NAVI smart.
• If you want to use the standard command format, switch the
mode by RSM command or disable "LP-400/V compatibility"
in system settings of Laser Marker NAVI smart.
ME-LPGS-SR-5
Measures
165