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3.8.3.5 Configuring the IDN Message
The 4863's IDN message can be changed with the CALIBRATE subsystem
commands to personalize the 4863 or OEM board as part of the system or
product. The format for the IEEE-488.2 IDN message is four fields
separated by commas. The fields are: manufacturer, model code, serial
number and revision. The word "model" may not be used in the IDN
message. Maximum message length is 72 characters. The IDN message is
a lockable parameter and if locked, needs to be unlocked before being
changed.
e.g.
CAL:LOCK OFF
'unlocks all parameters
CAL:IDN company, model, serial number, revision/date
CAL:DATe 06-09-98
'saves new IDN message
'Note-use the current date
Use either the CAL:DATe or *SAV 0 command to save the IDN message.
3.8.3.6 Saving the Configuration
The 4863 uses the 488.2 *SAV 0 command to save the current configuration
in the 4863's Flash or the 4863's Flash Memory. The saved configuration
is automatically recalled at power turn-on time. CAUTION - Because the
Flash Memory has a finite number of write cycles, the *SAV command
should not be used inside a program loop.
*SAV 0
'saves current values
*RCL 0
'recalls saved configuration
3.8.3.7 Bit manipulation Commands
The bit manipulations provide a way to directly set, reset and to read
individual bits. Bytes are numbered from 1 to 6. Bits are numbered from
0 (LSB) to 7 (MSB). Logic true polarity is set by the SOURce and SENSe
polarity commands. Examples are:
ROUTe:CLOSe 1,0
'sets first bit in byte 1
ROUTe:OPEN 2.2
'resets bit 3 in byte 2
SENSe:BIT? 5,7
'reads bit 8 in byte 5
