John Miles wrote: >Interesting; I hadn't run across that. The examples in the manuals commonly >show multiple commands in a single string; maybe the old-school BASIC >controllers were smart enough to pause briefly after transmitting semicolons >or string terminators...? > >-- john, KE5FX > > You can usually string multiple commands together in a single message, but after you send that message you need to wait a little while before doing another ibwrt or sometimes ibrd. In theory, the bus is supposed to handshake to avoid that problem, but that's not always reliable on the older instruments -- they will report that they're ready for another command when in fact they aren't. In fact, while doing this experiment the 5370B would show "Err 1" (invalid command) on its display if I tried to talk to the 3456A too soon after talking to the 5370.
73, John _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
