AMX NetLinx Integrated Controller NI-4000 Instruction Manual page 132

Troubleshooting
Troubleshooting Information (Cont.)
Symptom
I can't connect to my NI Controller
via the rear Program Port using a
DB9 cable.
My NetLinx devices drop offline
periodically when communicating
over Ethernet.
When plugging the Master into a
fixed speed hub or switch;
(i.e. 10-BaseT Hub or Switch); the
hub or switch acts erratically.
I'm unable to connect to the
NetLinx Master from a PC over
TCP/IP.
I've inserted my NXC cards into my
NI-4000 but NetLinx Studio doesn't
detect them.
126
Solution
A DB9 cable is used for Serial communication between the PC and the
Master.
• Verify the DB9 connectors are securely inserted into their respective
ports on both the rear Program Port (on the NI) and the COM Port
(on the PC).
• The NI-series of Integrated Controllers comes factory defaulted to a
communication Baud Rate of 38400. Verify that the rear Program
Port DIP switch is set to the user selected communication speed.
Refer to the Setting the Configuration DIP Switch (for the Program
Port) section on page 17 for more information.
• If a higher Communication speed is being used (115200), try going to
the lower Baud Rate of 38400. Refer to the Configuration and
Firmware Update section on page 37 for more information.
The benefit of setting the Ethernet mode is to keep the Master
(NI Controller) from having to auto negotiate with the Network.
On NetLinx Masters (such as those onboard the NIs), from Telnet or
Terminal, you can send the SET ETHERNET MODE command.
Examples:
SET ETHERNET MODE 10 HALF
SET ETHERNET MODE 10 FULL
SET ETHERNET MODE 100 HALF
SET ETHERNET MODE 100 FULL
SET ETHERNET MODE AUTO
The NI-4000/3000/2000 NI Controllers can utilize all of the above
Ethernet modes.
(see above for resolution)
(see above for resolution)
The NI-4000 Integrated Controller is the only NI-series Controller that
utilizes NXC Control Cards.
• Verify that the cards have been firmly inserted into open slots within
the NI-4000 until the cards connectors "snap" into the rear connector.
Without this proper connection of the cards to the rear of the slot, the
NI Controller might not detect them properly.
• From the Main NetLinx Studio menu, go to Tools > Reboot the
Master Controller > Continue. This reboots the on-board Master
and makes it re-detect the inserted cards.
• If NetLinx Studio still does not detect the cards, cycle power to the
Controller and repeat the above steps.
NetLinx Integrated Controllers