DFT is Distributed Function Terminal, meaning that the controller does less of the logic than for Control Unit Terminal (CUT) devices. Not all DFT devices support explicit partitions.
ISPF uses explicit partitions for both SPLIT and SPLITV when 3290 support is enabled. It only defines 4 partitions, even though the 3290 supports 16. I've used SPLITV on a 3290 and multiple sessions on a PC; neither is better than the other. They do different things. "When the only tool you have is a filter, everything looks like a pipe." -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Steve Smith [[email protected]] Sent: Friday, April 16, 2021 5:47 PM To: [email protected] Subject: Re: Is there a vertical split in ISPF? The 3290 added what I think was called "DFT", or "partitioned mode" to the 3270 protocol, and allowed a smart application (afaik, ISPF is the only application that smart) to divide up the screen into several logical screens. The ISPF SPLITV command implemented that. Maybe some TN3270 apps can support it, but I haven't explored it, as multiple sessions are better anyway. I used a 3290 for a while in the Naughty 90s, and liked it, except for the orange display. The 3290 was a gas-plasma or something like that, so the color was chosen by physics, not aesthetics. sas ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
