YINGD Posted November 23, 2015 Report Share Posted November 23, 2015 I have an application where I need to communicate with an ACTech VFD via Ethernet IP using a Unistream based controls system. I am using Output Assembly 100 and Input Assembly 101 to send and receive communications with the drive. At this time, communications seem to be working well with Word 0 of each Assembly but I cannot find out how to read the and write to Word 1, 2, and 3 of each assembly as individual words. When I set the Data Type to INT16, I get 16 Bits that I can read/write as Word 0 and when I change the data type to INT 32, I get 32 bits that I can read&write to but the 32 bits translate to Worda 0 and 1 of each assembly but I cannot fidn out how to see access Words 2 & 3 of each assembly. My questions are: 1. How do I access words 2 and 3 of each Assembly 2. How do I breakup words 0 & 1 which I can currently see as one 32 bit word into two 16 bit arrays so that it is seperated into Words 0 and 1? The manual for the ACTech communications module can be seen at the link below. I could not seem to upload the manual because the file size was too large. http://download.lenze.com/TD/COM__ESV__SMV%20EtherNet-IP%20module__v2-0__v2.0-B__EN.pdf Quote Link to comment Share on other sites More sharing options...
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