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4.7.3
Select the Control Method
4.7.3.1
Control Method Options
The power supply with may be operated through four interfaces. This section describes how to
enable each option.
MODE
1
LAN
2
Local
3
Serial
4
Analog
5
Optional
Communication
4.7.3.2
Select LAN Remote Mode
Selecting the LAN mode enables programming over the Ethernet cable. Any settings and
measurements may be done from a remote computer using the power supply's built-in web pages
or using SCPI programming commands.
To select the LAN mode:
1.
Press the COMM button on the front panel.
2.
Rotate the Current encoder to select LAN, LAN message appears on current display. Press
Current encoder to accept, display blinks to acknowledge selection.
Refer to SYSTem[:COMMunicate]:INTerface <DSC> command to select LAN communication
interface via communication.
4.7.3.3
LAN Status LEDs
There are two LED's at the bottom of the RJ-45 connector that indicate the following:
Normal Operation: Steady green, the power supply has an active LAN connection.
•
Device Identify: Blinking green
•
The Identify function is turned on from a remote computer using the web page or a SCPI
command. The Front Panel blinks along with the Rear Panel green status LED. This feature is
used to identify the Master (LAN) power supply in a rack full of instruments. The blinking is
turned off by the web page by sending another SCPI command or by pressing Front Panel
encoders/buttons. In a multi-drop chain, only the master LAN supply blinks.
MODE DESCRIPTION
Control using an Ethernet connection
Control using the front panel encoders
and buttons
Control using RS-232, RS-485 or USB
Control using analog signals
Control using Optional communication
card (i.e. IEEE)
NOTE
60
LAN disables serial and optional
communication ports
LAN can be used to measure and read
(monitor)
Serial disables the LAN port
LAN, local or serial may still be used to
measure and set protections
Optional Communication disables the LAN
port
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