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Section

2: Installation 2470 High Voltage SourceMeter Instrument

Reference Manual

2-16 2470-901-01 Rev. A / May 2019

SPE, SPD

When the instrument detects the serial polling enable (SPE) and serial polling disable (SPD) events, it

sends the status byte of the instrument. This contains the serial poll byte of the instrument.

The serial poll byte contains information about internal functions. See the Status model (on page B-1

)

for detail. Generally, the serial polling sequence is used by the controller to determine which of

several instruments has requested service with the SRQ line.

LAN communications

You can communicate with the instrument using a local area network (LAN). The LAN interface can

be used to build flexible test systems that include web access. This section provides an overview of

LAN communications for the 2470.

When you connect using a LAN, you can use a web browser to access the internal web page of the

instrument and change some of the instrument settings.

The 2470 is a version 1.4 Core 2011 compliant instrument that supports TCP/IP and complies with

IEEE Std 802.3 (ethernet LAN). There is one LAN port (located on the rear panel of the instrument)

that supports full connectivity on a 10 Mbps or 100 Mbps network. The 2470 automatically detects the

speed.

The 2470 also supports Multicast DNS (mDNS) and DNS Service Discovery (DNS-SD), which are

useful on a LAN with no central administration.

Contact your network administrator to confirm your specific network requirements before setting up a

LAN connection.

If you have problems setting up the LAN, refer to LAN troubleshooting suggestions (on page 2-24