Setting The 8-Bit Configuration Switch - Agilent Technologies 8453 Operator's Manual

Figure 55
Table 53
Interfacing

Setting the 8-Bit Configuration Switch

Setting the 8-Bit Configuration Switch
The 8-bit configuration switch is located next to the GPIB connector. Switch
settings provide configuration parameters for GPIB address, serial
comunication protocol and instrument specific initialization procedures
8-Bit Configuration Switch.
2 3 4 5 6 7 8
1
If you just want to change the GPIB address and need a detailed procedure,
refer to the Installing Your UV-Visible Spectroscopy System handbook.
Default GPIB address is set to 25 equal to a binary setting of 0 0 0 1 1 0 0 1
(where 0 means that the switch is down and 1 means that the switch is up;
the binary code of the address starts with the least significant bit at switch
number 8).
8-Bit Configuration Switch
Mode Select 1 2
GPIB 0 0
RS-232 0 1
Reserved 1 0
TEST/BOOT 1 1
Switches 1 and 2 define which set of parameters (for example, for GPIB,
RS232 and so on) will be changed. Once the change has been completed, the
instrument must be powered up again in order to store the values in the
non-volatile memory.
In the non-volatile random access memory (NVRAM) the parameters are
kept, independantly if you turn the instrument off and on again. They will be
kept until the same set of parameters is subsequently changed and power is
146
3 4 5
GPIB Address
Baudrate
Reserved
RSVD SYS
6 7 8
Data Bits Parity
RSVD RSVD FC