Lakeshore Learning Materials 642 - Manual (Page 51)

Lake Shore Model 642 Electromagnet Power Supply User’s Manual
Operation 4-11
4.17.2 Changing IEEE-488 Interface Parameters
Two interface parameters, address and terminators, must be set from the front panel before IEEE-488 communication
with the instrument can be established. Other interface parameters can be set via the interface using the device specific
commands provided in Paragraph 5.3.
To set the IEEE-488 parameters, press the Computer Interface key and press Enter to skip past Serial Interface Baud
Rate. The following computer interface screen appears as a prompt for the IEEE-488 address.
Computer Interface
Select With °®
IEEE Address: 12
Use the s or t key to select an address between 1 and 30. The default is twelve. Press Enter to accept the new
selection and continue to the next setting screen. Press Escape to cancel the new selection and return to the normal
display. The next computer interface screen appears as a prompt for the IEEE-488 terminators.
Computer Interface
Select With °®
IEEE Term: Cr Lf
Use the s or t key to select one of the following terminators: CR/LF, LF/CR, LF, and EOI. The default is CR/LF.
Press Enter to accept the new selection and continue to the next setting screen. Press Escape to cancel the new selection
and return to the normal display.
4.18 DEFAULT PARAMETER VALUES
It is sometimes desirable to reset instrument parameters to their default values. This data is stored in nonvolatile memory
called EEPROM. Instrument calibration is not affected by this operation. Firmware version information for the main
firmware and the DAC firmware is also displayed during this sequence.
To clear EEPROM memory or view the firmware versions press and hold the Escape key for 5 seconds. The following
screen appears to show the main firmware version, the DAC processor firmware version, and as a prompt for returning
the instrument parameters to default values. Default parameter values are listed in Table 4-3.
Main Code Version: 1.0
DAC Code Version: 1.0
Select With °®
Default Values: No
Use the s or t key to select Yes for default values and No to continue without changing the parameter values. Press
Enter to accept the new selection and return to the normal display. Press Escape to cancel the new selection and return
to the normal display.