Communicating with the HP 16500C
You can communicate with the HP 16500C in several ways. If you NFS
mount your logic analysis system, it behaves like a disk drive on your LAN
and programs control it by writing to the
\system\program file. The other
common way to control the instrument is through telnet or another
socket-style connection.
The HP 16500C must be turned on and completely booted up before you can
mount the system to your network. Once power is applied to the system and the
System Configuration menu is displayed, allow an additional 15 seconds before
attempting to connect to the system.
The LAN connection does not provide real-time programming control. Due
to the message handling protocol of Ethernet LAN, messages take an
indeterminate amount of time to reach their destinations. There can be no
guarantee that commands sent from your computer will reach the HP 16500C
in a timely way, although the majority of messages do.
LAN Addressing
All devices on an Ethernet LAN are uniquely identified by their Ethernet
address. The Ethernet address is set in the hardware of any Ethernet-
capable device.
However, the utilities you use to communicate with the HP 16500 Logic
Analysis System follow the TCP/IP protocol. This protocol assigns unique IP
addresses in software. When you connected your logic analysis system to
your LAN, you or your system administrator assigned an IP address to the
HP 16500C. Use this address to communicate with the HP 16500C. You can
check the address by selecting LAN Settings in the System Configuration
menu.
Programming Over LAN
Communicating with the HP 16500C
4–3
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