This message comes up
when the motherboard is unable to establish communication with
the 5axmc card. It indicates a problem with the computer power
supply, the motherboard's ethernet port, the ethernet
cable,the 5axmc card,or the CPU module on the 5axmc.
communicates with the motion card via an ethernet cable.
The ethernet cable
plugs into a small module mounted to the motion card, which is
the vertically oriented card located about 6 inches behind the
monitor. On the back of the monitor is a loopback connector (labelled
a "SuperLooper") that mates with the ethernet cable or port.
If you are consistently getting the "Polling controller"
message, turn the control off and unplug the ethernet module
from the motion card, leaving the ethernet cable plugged in to
the module. Once the module is unplugged, unplug the cable
from the module. The locking tab which holds the cable
connector into the module must be pressed flat against the
body of the cable connector. Use a flat screwdriver or some
similar tool to press the tab against the connector body. If
it isn't pressed down hard it won't release, and you might
damage the connector housing on the module when you pull the
Once the cable is
disconnected, plug the free end of the cable into the loopback
connector and plug the module back in to the motion card.
Be sure that all of the
module's pins are in the socket on the motion card. Turn the
control back on. It will probably take longer than normal to
boot, and you will most likely see a message from the ethernet
software driver detailing port speed and media type, etc.
After you see the "Back up files" prompt, the jog screen will
come up. With some of the motherboards we've used, it will
come up with the "Polling Controller" message the first time
it's booted with the loopback connector installed even if the
port is working OK, so if you get the message the first time
it's booted, shut it off and boot it up again. If you continue
to get the message after booting twice, either the computer or
the ethernet cable is faulty. To test this, you'll need to
remove the control's front panel, which is held on by 2 screws
on each side. Unplug the control's AC power cord before doing
Unplug the ethernet
cable from the computer (again being careful to fully depress
the locking tab), and plug the loopback connector directly
into the computer's port. Put the front panel back on, plug
the power in and power the control up again. Again, depending
on the motherboard version, you may need to boot twice to
clear the "Polling controller" message. If it still does not
clear the message after booting twice, there is a problem in
The problem will be
either in the motherboard or the power supply. To check the
power supply, you will need to pull the computer out of its
compartment behind the keyboard. There is a 2-wire cable that
connects to the right rear corner of the motherboard and is
secured with tape. Be sure you note the orientation of the
connector before you unplug it.
There is another 2-wire
cable that connects to one of the power supply connectors on
the left side of the computer. Once these two connectors are
unplugged and the video and power cables are unplugged, you
can slide the computer out of the control. You'll need to plug
an ordinary computer power cord into the power supply and plug
it into an AC outlet.
Once it's plugged in,
you'll need to check the Standby 5 volt power supply. This is
located on the 20-pin white nylon connector on the
motherboard. There should be between 4.5 and 5.5 volts DC
measured from the purple wire near one end of the connector to
any of the black wires.
If this voltage is
good, the motherboard needs to be replaced.
If the computer
consistently boots up without the "Polling controller" message
when the loopback connector is installed, the problem is in
the motion control card or in the ethernet module. These parts
are treated as a unit, so they will both need to be replaced.