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Problem Some older software is not compatible with Windows 7. The software can be run in Windows XP in Windows Virtual PC. However, problem arises when older software needs to access communication port such as RS-232 port. Solution Physical ports in Windows 7 can be mapped to Virtual PC. Make sure that communication port is […] Description Beckhoff PC uses software to communicate with Allen-Bradley CompactLogix or ControlLogix. The software is called TwinCAT EthernetIP Slave. Without this software, Allen-Bradley can not get Beckhoff PC’s information. However, I could not find any document on how to check it. With help from Beckhoff technical support, I figured it out and wanted to show […] Problem Adding Function Block in Beckhoff TwinCAT structure text is not as straight forward as it should be in version 2.11 and before. There are some trick steps. Steps to Add Function Block in Structure Text Move cursor to programing area where you want to add a function block. Function Block in Struture […] |
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