Prosoft PLC through RS-232 to USB-B

[itsawolf 0]

Here is a real difficult situation that needs everyone's expert advice. I have a Prosoft PLC the has a traditional RS-232 / 422 / 485 output that is currently sending ASCII character strings to an analyzer that has an RS-232 input port. I am replacing that analyzer with one that only has a USB-B port for receiving ASCII commands. I do not have the ability to put a computer in line and neither the PLC nor the analyzer will accept drivers for a USB-B to RS-232 adapter. I think what I need is something like a USB host adapter if such a thing exists. Any ideas? Thank you all!

[JRoss 84]

You might also want to double check the protocol of the new analyzer to make sure that it uses ASCII strings that are in the same format as the old analyzer. I looked at a project last fall that included interfacing with and controlling a Yokogawa Oscilloscope which only had USB and Ethernet. The only way to talk to it was using a PC with a Visual Basic program sending commands.

[itsawolf 0]

I hope that's not the only answer. We have to avoid putting another PC in the system. There's no practical location to install one. As far as the ASCII strings go, we have the new set of commands which are compatible with the new analyzer. The whole thing works fine with a computer. We just need it to work fine with PLC control. Anybody else? Mark

[JRoss 84]

Maybe this: http://ack6.com/Products.html

[itsawolf 0]

Jeremy, This appears to be just what I was looking for! I can't thank you enough for your help on this. YOU ARE AWESOME! Mark