User`s guide

2-12 Installing the PCLTA-20 Adapter
The PCLTA-20 will now be renamed LON2 and the named device conflict will be
resolved.
Under certain circumstances the L
ON
W
ORKS
Plug ‘n Play control panel diagnostics
functions states that the PCLTA-20 and driver are functioning; however, the
LonMaker for Windows Integration Tool or any other LNS-based tool do not work.
You will notice that when the network is open the tool indicates that it is unable to
communicate with the PCLTA-20 NSI. This is because the PCLTA-20 features a
downloadable firmware image and the L
ON
W
ORKS
Plug ‘n Play control panel must
be reconfigured to use the NSI. The "Ni Application" must read NSIPCLTA, and not
PCC10L7 or PCL10L7.
If, after pressing the TEST button after installation of a PCLTA-20, an **Error-
Image Load Failure” message is reported, then there is either an I/O conflict with the
PCLTA-20, or the adapter is broken. If there is an I/O conflict, then Windows NT is
not granting an unused I/O port to the PCLTA-20 driver. To rule out a broken
adapter, check the adapter using a Windows'95 configuration known to be reliable.
Automatic Flush Cancel Issues
If the PCLTA-20 card appears to install and test normally, but still will not
communicate on the network, check to be sure that the Automatic Flush Cancel
checkbox in the L
ON
W
ORKS
Plug ‘n Play control panel is still in its default (checked)
state. For more information, see the
Automatic Flush Cancel
section in chapter 3.