All PLCs must communicate via RS-485 Serial as Slaves, by defining a unique Slave ID for their addressing on the RS-485 Serial network.

If communication with PLCs is via Ethernet TCP/IP, users must pay attention to the following details:

•M90-, M91- and Vision 120-type PLCs do not support communication in Ethernet mode

•230-, 260-, and 280-type Vision PLCs require the installation of an Ethernet port for communication via TCP/IP

This Driver communicates using the UnCmDrv1.dll ActiveX, provided by the PLC manufacturer. However, this ActiveX requires several dependencies, which must be pre-installed and registered in the operating system. The next files are required:

•ssa3d30.ocx

•ComDlg32.ocx

•MSComCtl.ocx

•AmiCommPro.ocx

•MSComm32.ocx

•MSWinSck.ocx

•UnCmDrv1.dll

By default, installing any Unitronics software must install all these dependencies in order. However, if any of these files is not registered, users must use the regsvr32 command on a Command Prompt with Administrator privileges, according to the next example.

regsvr32 [filename with extension]