wyse 50 mode

[joshuatree]

Hi all,

    Using LabVIEW 8.5,  I have to interface to a device using RS-232.  Simple enough.  The operators manual says the terminal port that i need to connect to is: "RS-232 (WYSE 50 emulation)"

I'm not familiar with wyse 50 at all.  How is this different than VT100?    The owners manual also says...

Poll for transactions with C . Transactions are transmitted in the computer

format shown below; the unit then waits for a response.

If `NAK <CR>' (`^U <CR>') comes in from the target computer, the unit resends the same transaction.

A `ACK <CR>' (`^F <CR>') causes the unit to transmit the next transaction. An `X <CR>' can be

entered any time to abort the transmission. An `EOT' ("end of transactions") is transmitted when there are no

transactions left to poll. 

That's all i have to go on.  That the messages aren't terminated with <CRLF> is telling me there's something i don't know...

Any experience with wyse 50?

Thanks in advance

[RavensFan]

I've never heard of wyse 50.

But some of the commands listed make sense.

NAK or Ctrl-U is an ASCII control character decimal 21 or hex 15.  EOT is dec or hex 4.  Ctrl-X is decimal 24 hex 18.

You can send those by creating a string that is set for hex display.  So to send ACK CR send a string (in hex display) that shows 06 10.  NAK CR would be 15 10  .

[joshuatree]

Thanks Ravens Fan for responding.

After more digging, it seems that wyse is a company that made those nasty "green screen" dumb terminals years ago.  when i was in the navy they used em for interfacing to the logistics system...  ugh!!

For those who come along in the future, here's a description of the terminals in general:

http://tldp.org/HOWTO/Text-Terminal-HOWTO-24.html#ss24.8

and here's the manufacturer's site:

http://www.wyse.com/service/support/kbase/KBmenu1.asp?Q=4