Download SNAP PAC R-SERIES CONTROLLER USER'S GUIDE

TROUBLESHOOTING THE SNAP PAC R-SERIES CONTROLLER
Keep this window open on your screen when you call Product Support.
Communicating with the Controller
If you attempt to connect to the controller using its IP address and you cannot, first check the
following:
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Make sure the controller has been turned on and the LNK and STAT LEDs for the connected
Ethernet interfaces are lit (see “Connectors and LEDs” on page 33.)
•
Make sure the controller is mounted on a SNAP PAC rack.
•
Make sure the controller’s hold-down screw has been tightened so that it is firmly attached to
the rack.
•
Verify that you typed in the correct address for the controller. Check the label on the side of the
controller, where the IP address should be written. There are two labels, one for each Ethernet
port, so make sure to look at the right one.
•
Make sure the controller has been assigned a valid IP address and subnet mask. SNAP PAC
R-series controllers come from the factory with a default IP address of 0.0.0.0, which is invalid.
The default subnet mask is 255.255.255.0. To assign an IP address and subnet mask, see the PAC
Manager User’s Guide.
•
Make sure that no red LEDs on the controller are lit. A red LED could indicate a voltage supply
problem. Each controller should have its own power supply. The controller needs a minimum of
5.0 VDC, measured at the rack.
•
Make sure you have up-to-date drivers installed on your computer’s Network Interface Card
(NIC). Contact your system administrator or the manufacturer of the card for help.
SNAP PAC R-Series Controller User’s Guide