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MP Series
Users Manual, Rev. 1.0, Apr 2021
Checkpoint
Serial
Communication
via COM port
PC
58
•
Disable the PC network adapter temporarily:
<Start> <Settings> <Control panel> <System> <Hardware> <Device Manager> <Network adapters>
•
Switch on/off the scanner's power.
•
Software is not to be launched during the initialization time of the scanner (about 120 s).
•
Use the network administration utility Ping to test the reachability of the scanner. Call the Windows <Command
Prompt> and execute ping 192.168.42.30 (exemplary IP address)
•
Use the network protocol Telnet to provide a bidirectional text-oriented communication to the scanner by using
the scanner specific commands. Call the Windows <Command Prompt> and execute telnet 192.168.42.30 2727
(exemplary IP address and port).
Note: Telnet is not available on all Windows computers by default!
•
Verify correct C
port. If existing use another C
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•
To avoid communication problems the properties of all used C
<Start> <Settings> <Control Panel> <System> <Hardware> <Device Manager> <Ports (COM & LPT)>
<Communications Port COMx> <Ports Settings> <Advanced> <Receive Buffer>: Low
•
In case of using plug-in serial cards, disable <CTS/RTS> for the Auto Flow Control.
<Start> <Settings> <Control Panel> <System> <Hardware> <Device Manager> <Ports (COM & LPT)>
<Communications Port COMx> <Ports Settings> <Advanced>
•
Avoid the use of third party USB/RS232 converters!
•
Ensuring the RS232/485 converter is close to the PC (and not to the scanner)
•
In case of communication errors, the baud rate should be reduced step by step.
•
Software is not to be launched during the initialization time of the scanner (about 120 s).
•
On some computers, the performance of the software can be increased dramatically by switching off the
hardware graphic acceleration:
<Start> <Settings> <Control Panel> <Display> <Settings> <Advanced> <Troubleshooting> <Hardware
acceleration>: None
•
A too high display resolution can cause problems. Test temporarily a setting of 800x600 pixel at high color (16
bit).
•
For several reasons the PC can be overloaded. This can be checked by running the scanner software and
pushing CTRL+ALT+DEL at the same time. In the task manager a window for the system performance can be
selected. The value must be every time much below 100%.
•
In some cases, the graphic card of the computer can interrupt serial communications for too long a time. S3-
graphic cards are known to exhibit this problem. The only solution is to exchange the S3-graphic card.
Possible Cause / Solution
port on the computer.
OM
ports must be changed as follows:
OM
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