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mfuser · Banned Joined: 01 Mar 2005 Posts: 105 Topics: 58

Members,

If i right click on the Mainframe screen i get a small dialog box and the options available are below.Can anybody help me what exactly these options are used for ? Is there any document by which i can learn ?

warp5 · Posted: Fri Nov 03, 2006 2:18 am Post subject:

There should be documentation about these in your emulation. These are all keys that are available on a real 3270 Terminal Keyboard and your emulation allocates them to some PC Key. PA1 is usually used to print in CICS. CLEAR is clear the screen, EREOF is Erase EOF - erase the rest of the line, ATTN is attention, PA2, RESET, ERLNP, SYSREQ (System Request) you usually will not need. Depending on your emulation there should be another block too with more keys.

semigeezer · Posted: Fri Nov 03, 2006 3:56 am Post subject:

these AID (attention interrupt) keys have different meanings in different systems. Warp5 mentioned the CICS meanings. In TSO PA2 is useful to refresh the screen, PA1 to do an interrupt, ATTn to do a stronger interrupt, and SYSREQ is useful with the underlying communications layer in some but not all cases. EOF means end of field. Reset is best understood by understanding how a 3270 basically works, but there are some things that can cause the terminal to lock up and RESET unlocks it. Some if not most modern emulators have a setting to do the reset function automatically though. I've never heard of ERNLP. I don't know of any use for PA3. There used to be a DUP key that was used to chain commands in TSO, but I haven't seen anyone do that on 20 years.

warp5 · Posted: Fri Nov 03, 2006 5:42 am Post subject:

Thanks for adding more semigeezer. Actually, most of the keys have the same function in any 3270 session. As you mentioned, the PA keys do have a different function in different products, but they are programmable keys anyway (you can assign program functions to them).

Bill Dennis · Posted: Fri Nov 03, 2006 9:03 am Post subject:

I especially like PA2 while editting in ISPF. If I type over something by mistake, the PA2 restores the screen data as of the last function key (ENTER, PF7, PF8, etc.).
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Regards,
Bill Dennis

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