Z-Trak2 3D Profiler Sensors
Appendix
•
157
Manual for GigE Vision Cameras & 3D Sensors
for configuration details (on the
Start
menu,
open
Teledyne DALSA Sapera LT
, select the
Documentation
folder, then open
SaperaGettingStarted_Cameras.pdf).
Configuring the IP assignment mode
DHCP/LLA Mode
is the preferred automatic IP assignment mode on a NIC used with GigE devices
such as Z-Trak2; it is enabled in the Sapera LT installation (see Sapera LT Network Configuration
tool). For multiple NIC applications, use the Teledyne DALSA DHCP server, since it is the easiest to
manage.
Alternately, choosing
Persistent IP Mode
, IP addresses are not automatically assigned; the user
must explicitly provide IP address and subnet mask.
How IP is assigned
Once communication with the host computer is established, an IP address is assigned to the device
using one of three methods, according to the following sequence:
•
Persistent IP (if enabled)
•
DHCP (if a DHCP server is enabled, such as the Teledyne DALSA DHCP server)
•
LLA (always enabled as default)
The factory defaults for Z-Trak2 is
DHCP
enabled, with
LLA
always enabled as per the GigE Vision
specification (
GigE Vision Transport Layer category
).
By default, automatic IP assignment is enabled through DHCP on the host computer NIC. If a DHCP
server is enabled on the NIC subnet, it will assign IP addresses to the cameras/sensors attached to
that subnet. Using a DHCP server is recommended when there are multiple NICs with multiple
devices attached.
If no DHCP server is enabled on a NIC, then the LLA (Link-Local Address) method is used, which
automatically assigns the device a randomly chosen address on the 169.254.xxx.xxx subnet. Note
that the LLA mode is unable to forward packets across routers.
Persistent IP should be used only when the user fully controls the assignment of IP addresses on
the network. The GigE device is assigned a static IP address that must use the same subnet as the
NIC.
For additional information on IP configuration modes, see the
Sapera LT Getting Started Manual for
GigE Vision Cameras & 3D Sensors
.