Specifications

RSLinx – Training Guide 21
Application Notes and Suggestions (continued)
1784-PCMK and PCMCIA information and Windows NT limitations
When using a 1784-PCMK (PCMCIA or “PC” card) communications card, Windows NT
has the following limitations:
• When a 1784-PCMK is reconfigured through RSLinx, your Windows NT system
must be rebooted for the changes to take effect.
• Only one PCMCIA card of the same type may be used at one time.
This means that you can only use one 1784-PCMK at a time or one PCMCIA
Ethernet card at a time with RSLinx. You can also use one 1784-PCMK and one
PCMCIA Ethernet card at the same time
• Windows NT and RSLinx do not support dynamic removal or insertion of
PCMCIA cards. If you remove or insert a PCMK card with RSLinx running, you
must re-start your Windows NT system for the card to be recognized.
• It is easier to configure the PCMK card when using board addresses at or above
D000.
Running RSLinx on NT with computers that are not networked
When running RSLinx on NT with the 1784-KT/KTX(D)/KTC/PCMK, RSLinx requires
NDIS services to be running.
Windows NT does not install or start NDIS services unless it has been configured to use
a network driver. To make sure that NDIS services are installed and started, a network
protocol must be selected in Windows NT.
If you attempt to configure an RSLinx driver, and network services are not installed on
your workstation, you will see the following succession of message dialogs. Click OK to
proceed through each.
• System Process - System Error\Object Name not found.
• RSLinx\StartServiceError: Unable to start NDIS Kernel Mode Mac
Driver. See Application Event Log for Specific error(s).
• System Process - System Error\Object Name not found.
• RSLinx\StartServiceError: Unable to start NDIS Kernel Mode Mac
Driver. See Application Event Log for Specific error(s).
•
RSLinx\StartServiceError: Unable to start NDIS Kernel Mode Mac
Driver. See Application Event Log for Specific error(s).
RSLinx will be running but drivers will not have been started. If these messages occur
when you attempt to configure an RSLinx driver, you must install network services on
your workstation.