Thanks you got me thinking on another track and I resolved the problem. Industrial Precision Agriculture Manufacturing Automation. Message 4 of 6. Message 5 of 6. MAX sees all the ports but I can’t seem to access them all from Labview. Message 6 of 6.
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I fixed that and all works now.
Edgeport/4 – 4 RS-232 serial DB-9
Feature-rich design, reliability and unmatched operating system support make Edgeport USB-to-serial converters ideal for mission-critical enterprise applications.
Message 2 of 6. An out-of-the-box external alternative to PCI cards, Edgeport makes it easy to add serial, USB or parallel ports to a PC, server or thin client in minutes — without opening the chassis, reconfiguring or rebooting the system.
Message 1 of 6. Did you install the drivers for the second Edgeport? If I disconnect the device from a working port and repeat, Labview times out and does not return any data as expectedthe edgepot thing is if I disconnect the device from the non-working port and repeat Labview does not time out or give any error.
MAX sees all the ports but I can’t seem to access them all from Labview. Message 6 of 6.
Edgeport/8 DB-9 – 8 RS-232 serial DB-9
How are you determining they don’t work? Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. I do not try to talk to multiple ports simultaniously. I know the code works I’ve used it for over a year with no problems, Labview does not talk to the device asevidenced by the device’s debug mode display not being activated and the lack of data being returned.
Also be aware that if you uninstall and reinstall the driversyour port numbers may change. So, in LabVIEW, without changing port numbers on the adapters or diconnecting any of the RS to Serial adapters, you can get one or the other adapter to work?
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Digi XBee Ecosystem Explore and create wireless connectivity. Is there a maximum com port number? Message 5 of 6.
Message 4 of 6. Contact a Digi expert and get started today! If you can talk to COM 22 by itself without issue, then it is not the problem. Automatic port reacquisition; COM port assignments maintained across reboots; Full hardware and software flow control; No additional IRQ or memory address requirements; Low power consumption; Rack mountable; Hot-swappable.
Technical Support Services Support services to meet any need. Perhaps the manufacturer’s driver cannot handle the multiple adapters.
USB-to-Serial Converters – Digi International
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Featured Resources To keep your critical point-of-sale and other network devices connected and the data flowing securely, look to Digi for our commercial-grade routers and gateways. In answer to your first question, no, after installing or reinstalling the rs2232 I can get one adapter only to work, to get the other to work I need to uninstall and reinstall in a different order.
I need 19 com ports but only seem to be able to get one of the Edgeport 16 com ports or the Edgeport 4 4 com ports to work at a time with Labview. Matthew Thanks you got me thinking on another track and I resolved the problem. Industrial Precision Agriculture Manufacturing Automation. Then I dug deeper into the egdeport issue and found the Modbus driver I was using had a enumerated com port selector limited to com port 17 instead of a string or numeric input as I expected it had.