Network Force/Torque Sensor System

Net F/T Installation and Operation Manual
Document: 9620-05-net ft-11
18.3 Questions and Answers
18.3.1 Powering Up
Question/Problem
Xdcr LED stays red after the twenty second power up
phase
Xdcr LED is red for the first twenty seconds after
power up then turns green
The LS EN (Ethernet Link Status) is not green or
flashing green
Answer/Solution
Check transducer cable connections.
Verify transducer cable is not damaged.
There may be an internal error in the Net Box.
This is normal operation.
Check Ethernet cable connections.
18.3.2 Communications
Question/Problem
What IP address is assigned to the Net F/T?
How can the Net F/T system be set to the default IP
address of 192.168.1.1?
DHCP is not assigning an IP address
Browser cannot find the Net F/T on Ethernet network
even though the Net F/T configuration utility reports
an IP address
Incorrect CAN Bus Base Address, DeviceNet MAC
ID, and/or Baud Rate reported
System status reports DeviceNet Protocol Failure
when using DeviceNet
Answer/Solution
See Section 6.1—Finding Net F/Ts on the Network.
Set DIP switch 9 to the ON position (see Section 3.10—DIP
Switches and Termination Resistor). The Net F/T must be power
cycled for the new setting to be used.
Ethernet LAN must be connected during power up.
DHCP is not selected as the IP Address Mode on the
Communications page.
The DHCP server waits more than thirty seconds to respond.
Clear the Windows computer’s ARP table to remove memory of a
previous device that used the same IP address as the Net F/T by
restarting the computer or, if you have administrative privileges, by
going to the computer’s Start menu, selecting Run..., and entering
“arp –d *”.
Power must be present on the Pwr/CAN connector to correctly
report these values.
DeviceNet is not available unless power is present on the Pwr/CAN
connector.
18.3.3 Java Demo
Question/Problem
Demo displays zeros for force and torque values and
question marks for configuration data
Excessive IO exception: Receive timed out errors
Error message: IO exception:
(The process cannot access the file because it is
being used by another process)
The message Could not find the main class. Program
will exit appears in a window titled Java Virtual
Machine Launcher.
Answer/Solution
Check IP address and restart demo.
The Ethernet connection was interrupted. Check Ethernet cabling
and Net F/T power.
Selected file for data is in use by another program. Close file or
change file name and press Collect Streaming again.
Computer requires a newer version of Java. Java may be
downloaded from www.java.com/getjava.
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