Hello VRF,
I am needing to build a test system requiring 40 COM (serial) ports using VEE 8.0 (with the 8.01 patch) and IO Libs 14.2.
If this will work, I plan to use five (05) - USB to 8 serial port converters in a Dell Optiplex 745 mini-tower computer running XP Pro. I have used one of these converters in the past with no problems. If this does not work, then I am forced into a matrix switch or something else equally bad.
However, I have experienced COM port limitations with VEE 5.01 and the "M" IO Libs. Even though the OS could recognize a larger number of ports, VEE 5.01 could not. I remember not being able to go beyond 13 ports.
Does anyone have experience using multiple USB-COM converters? If so, this upper limit number would be great information.
Thanks in advance,
George Tyrrell
TestDynamics LLC
Thornton, Colorado
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I am needing to build a test system requiring 40 COM (serial) ports using VEE 8.0 (with the 8.01 patch) and IO Libs 14.2.
If this will work, I plan to use five (05) - USB to 8 serial port converters in a Dell Optiplex 745 mini-tower computer running XP Pro. I have used one of these converters in the past with no problems. If this does not work, then I am forced into a matrix switch or something else equally bad.
However, I have experienced COM port limitations with VEE 5.01 and the "M" IO Libs. Even though the OS could recognize a larger number of ports, VEE 5.01 could not. I remember not being able to go beyond 13 ports.
Does anyone have experience using multiple USB-COM converters? If so, this upper limit number would be great information.
Thanks in advance,
George Tyrrell
TestDynamics LLC
Thornton, Colorado
---
You are currently subscribed to vrf as: hua_jing@agilent.com To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body.
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive".
Search the Agilent vrf archive at "http://vee.engineering.agilent.com".
I am needing to build a test system requiring 40 COM (serial) ports using VEE 8.0 (with the 8.01 patch) and IO Libs 14.2.
If this will work, I plan to use five (05) - USB to 8 serial port converters in a Dell Optiplex 745 mini-tower computer running XP Pro. I have used one of these converters in the past with no problems. If this does not work, then I am forced into a matrix switch or something else equally bad.
However, I have experienced COM port limitations with VEE 5.01 and the "M" IO Libs. Even though the OS could recognize a larger number of ports, VEE 5.01 could not. I remember not being able to go beyond 13 ports.
Does anyone have experience using multiple USB-COM converters? If so, this upper limit number would be great information.
Thanks in advance,
George Tyrrell
TestDynamics LLC
Thornton, Colorado
---
You are currently subscribed to vrf as: ming_meng@agilent.com To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body.
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive".
Search the Agilent vrf archive at "http://vee.engineering.agilent.com".