Model 250S1G6
14
Rev D
When connected to a PC running Windows 2000 or XP a window will pop-up labeled Hardware Wizard. If
this PC has National Instruments LabView installed it will have a USBTMC driver that will work with this
port. This driver will allow the device to be easily controlled using National Instruments Measurement and
Automation Explorer or LabView. It should be noted that the USBTMC driver provided by National
Instruments is a Virtual Instrument Software Architecture (VISA) driver which can be used with other
programming languages besides LabView. For more information on this please consult the National
NOTE: All firmware updates are done through the USB port.
2.6.5
Ethernet Communication
The Ethernet port allows remote control through a Transmission Control Protocol (TCP) data channel. All
commands and queries through this port must be terminated with a Line Feed character.
By default, this port is setup to work on a network with a Dynamic Host Configuration Protocol (DHCP)
server. Upon connection, an Internet Protocol (IP) address is assigned based on the internal Media Access
Control (MAC) address. The MAC address is printed on a label located near the Ethernet port.
If the connected network does not have DHCP enabled, then the device can be assigned an IP address by the
user. To do this, download the utility called DeviceInstaller
TM
. For assistance
using this utility please consult the utilities embedded help file.
The DeviceInstaller
TM
utility will scan the network and find all connected Lantronix Ethernet devices. This
list of found devices will include any connected AR Ethernet devices. By selecting one of the connected
devices from the list, its IP address and subnet mask can be changed along with a number of other settings.
One should use caution in adjusting any settings he/she is unfamiliar with as doing so may cause the port to
become unresponsive. By default the port for the TCP data channel is 10001.
* DHCP is a protocol used to assign a dynamic IP address to a device. Network server software will assign
an available IP address to a device when it is connected and powered on. Different IP addresses may be
assigned at different times.
2.6.6
Remote Commands
•
If a command or query is unrecognized it is echoed back out the port it came in on.
•
All commands and queries are terminated with a Line Feed character.
•
A Line Feed character is indicated by <LF> in subsequent command and query definitions.
•
All queries can be sent when the Keylock switch is in the INHIBIT, LOCAL, or REMOTE position.
•
All commands can only be sent when the Keylock switch is in the REMOTE position.
•
All spaces in command and query definitions are indicated by <space>.
•
If a query is recognized, its associated response is echoed out the port it came in on.
A
COMMUNICATIONS_ERROR
<LF> can occur if the time between commands or queries is too short, or
the internal RS-485 link between the IO Board assembly and the Multipurpose Board (MPB) assembly is
broken.
