Communication converters are used for communication of scanning units with the control system. The interfaces used are TCP/IP, RS485, respectively RS232. A prerequisite for a proper function of the converter is on-line communication with the control program PUMPA, which directly addresses scanning units that provide data by executing a particular operation or by providing an empty entry.
Connection variant is always chosen with regard to the customer’s conditions.
The simplest solution is direct connecting of the scanning unit by the line RS232 to a computer with program PUMPA. Any computer with the required configuration can be used as a communication server. This task is not exclusive, other programs can run simultaneously. There can be more communication servers. This solution is ideal where the scanning unit is close to a computer (line RS232 is 10 metres long), because there are no further costs involved.
Where there is no computer, but ETHERNET is available, it is possible to use direct connection of scanners by means of TCP/IP protocol via internal XPORT or external module MTCP (connecting MTCP with the line RS232).
Scanning units (up to 35 units) can be connected by the communication line RS485 to converter KPB4. The converter is connected to ETHERNET via TCP/IP protocol.
All the solutions are equivalent, they are applied with regard to the individual places and conditions.