Xeall Posted May 23, 2013 Report Share Posted May 23, 2013 Hi there, I am having some trouble reading variable length numbers in a "Protocol TCP/IP Scan" block. We are receiving a message of the form "-9999999999.999 [Counts16Bit]". Messages can be positive or negative and can contain a variable number of digits, so "9.999 [Counts16Bit]" is also a valid message. I am able to successfully use the scan block with fixed length messages. If I construct a message like "111 [Counts16Bit]0A" where the numeric variable is "Decimal ASCII: Fixed Length", Vector Length = 1, Length = 3, "No Prefix", I can receive any 3 digit number successfully. If I change the numeric variable to "Negative Only (-)", I can only receive messages with a "-" sign. I would expect to be able to receive 3 digit messages with or without a "-" sign. If I construct a message like "1 [Counts16Bit]0A" where the numeric variable is "Decimal ASCII: No Fixed Length", "No Prefix", I do not receive any messages, even ones with a single digit. Is there something I am missing. I would really appreciate any suggestions. Quote Link to comment Share on other sites More sharing options...
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