40
ICC
11.
Troubleshooting
Although by no means exhaustive, the following table provides possible causes
behind some of the most common errors experienced when using the gateway.
Problem
Symptom
Solution
The gateway will
not turn on
All LEDs are off and
the gateway shows
no activity
•
Confirm that power is connected
to the correct inputs on the RS-
485 terminal block.
•
If powering over USB, ensure the
USB cable from the kit is used,
and that the computer is able to
supply sufficient power as a USB
host device.
•
If firmware was being updated, it
may have been corrupted.
Unplug and reconnect the USB
cable and run the Configuration
Studio. Follow the Configuration
Studio instructions to restore the
firmware.
No
communication
between the RS-
485 network and
the gateway
The gateway’s RS-
485 TX and RX LEDs
are blinking slowly,
sporadically, or not at
all
•
Check connections and
orientation of wiring between the
network and the gateway.
•
Confirm that the protocol, baud
rate, parity, and address settings
on the RS-485 port match your
network configuration.
No
communication
between the RS-
485 network and
the gateway
The gateway’s RS-
485 RX LED is solid
ON
•
The RS-485 signal wires are
reversed.
•
Ensure that a network
reference/ground wire is in place.
No
communication
between the
DeviceNet
network and the
gateway
The gateway’s
DeviceNet MS LED
is green and the NS
LED is flashing green
or off
•
Check connections and
orientation of wiring between the
network and the gateway.
•
Confirm that there is network
power supplied to the bus.
•
Confirm that the protocol and
address setting on the DeviceNet
port match your network
configuration.
•
Confirm that the module(s)
selected generate input and
output data sizes that are less
than the maximum supported
sizes and within the range of the
database.
