nguyenthehuy
Apr 18 2005, 11:13 PM
Dear all.
You know infomation about PCI card support DH+ protocol of AB?.
Thanks.
gravitar
Apr 19 2005, 02:56 PM
That's the one, I wouldn't call it new though! Its been out for several years..
Eddie Willers
Apr 19 2005, 09:45 PM
Maybe the original poster is referring to the fact that the 1784-PKTX is a 5V PCI card. Many new computers have 3.3V only PCI buses, not "Universal" PCI buses that support both 5V and 3.3V.
I got bitten by that on a Dell server PC; Dell adamantly refused to give details on their PCI voltage, saying only that they used "PCI 2.0". It turns out that "PCI 2.0" allows the manufacturer to support 3.3V, 5V, or both, so it guarantees nothing.
Rockwell is said to be working on a 3.3V version of the PKTX, but I heard that the project was outsourced to India and they are two years behind in development. I could be wrong; that problem I ran into was last summer and they might have made some progress.
SST (www.mysst.com) and Data-Link (www.protocolcoverter) both have non-Rockwell DH+ cards. These do not support RSLinx, but do provide a PCI interface to DH+.
Firetubes
Apr 20 2005, 01:14 PM
| QUOTE (Eddie Willers @ Apr 19 2005, 09:45 PM) |
I got bitten by that on a Dell server PC; Dell adamantly refused to give details on their PCI voltage, saying only that they used "PCI 2.0". It turns out that "PCI 2.0" allows the manufacturer to support 3.3V, 5V, or both, so it guarantees nothing. |

Got bitten by this one as well
gravitar
Apr 20 2005, 05:04 PM
Did not know that about motherboard PCI busses, but it doesn't surprise me! PC vendors don't give a hoot about controls guys and their not-made-in-the-last-two-months interface cards!