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Multiplexing 3457A using a 3497A ?

John Griessen All Messages By This Member #1890 " I think there's a strong case for replacing the inguard controller with an ATMega shield with the requisite >connections and signals. I don't like the architecture, but the 5 V TTL compatibility is very valuable. Measuring any of 100 voltage sources with any arbitrary meter seems to me a very useful facility. Especially >if you could use it with 3497A GPIB commands or solder headers in place, connect an ATMega and run bespoke >code on that." I like the idea of using the Atmel uC based GPIB, (built in or grafted on), to do the special task. Is the inguard controller part of the DVM or the 3497A? I have not read the manuals yet. Can the 3497A GPIB be the controller of the 3457A and also receive commands for sequence of actions from a laptop? If so, command the 3457A relay card to use a set of wires, issue commands to relay cards in the 3497A, and get A * B sets of measurement terminals to use by program.
Harvey White All Messages By This Member #1891 If you decide to use I2C anywhere, there's an I2C isolator chip, ISO1641 that has a fair bit of voltage isolation.? AVRs can do I2C reasonably well.? If you go serial, then likely standard optoisolators would do do better because of the unidirectional lines.? There's a USB_GPIB master project on Github, that is exactly what it says.? There's also a GPIB adaptor that can use an arduino shield and drive GPIB.? That may be your better bet if you decide to go that way. Harvey toggle quoted message Show quoted text On 9/10/2023 1:09 PM, John Griessen wrote: " I think there's a strong case for replacing the inguard controller with an ATMega shield with the requisite >connections and signals.? I don't like the architecture, but the 5 V TTL compatibility is very valuable. Measuring any of 100 voltage sources? with any arbitrary meter seems to me a very useful facility.? Especially >if you could use it with 3497A GPIB commands or solder headers in place, connect an ATMega and run bespoke >code on that." I like the idea of using the Atmel uC based GPIB, (built in or grafted on), to do the special task. Is the inguard controller part of the DVM or the 3497A? I have not read the manuals yet.?? Can the 3497A GPIB be the controller of the 3457A and also receive commands for sequence of actions from a laptop?? If so, command the 3457A relay card to use a set of wires, issue commands to relay cards in the 3497A, and get A * B sets of measurement terminals to use by program.
Steve Lindberg All Messages By This Member #1892 开云体育 I have a 3497A with built in 5 ? digit meter. ? Sent from for Windows ?

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