Series 360, Granville-Phillips, Stabil-Ion, Ionization, Vacuum ...

2 Initial Setup Procedures
2.1.6.1 Selecting the Interface Bus Address
Refer to Figure 2-19 and locate switches 1 through 5. Each instrument on the IEEE 488 bus has an
address from 0 to 30. The address for this product is set at the factory to “8”. The user must ensure
that every device on his bus has a unique address. To select an address, switches 1 through 5 are
adjusted according to binary weights:
Table 2-10 Interface Bus Address Values When OFF.
Switch Number 5 4 3 2 1
Value when OFF 16 8 4 2 1
Examples:
Table 2-11 Example Switch Settings.
Switch Number 5 4 3 2 1 Address
Setting
On
On
Off
* Factory default setting
Off
On
Off
On
Off
Off
On
Off
On
On
Off
On
8*
7
28
X
X
OFF
ON
2.1.6.2 Talk-Only Mode
Figure 2-19
Switch 8, if set to off during power up, places the interface in
talk-only mode. The pressure data from all three displays will
be output in a single message string, separated by commas,
approximately every 5 seconds. If no Dual Convectron Gauge
module is present, only the ion gauge pressure will be output.
The factory default is talk-only disabled (switch 8 on).
8
8
Top View of IEEE 488 Module.
OFF
ON
2.1.6.3 SRQ Mode
Figure 2-20
Switch 7, if set to off during power up, tells the interface to
generate an SRQ interrupt and expect a serial poll before every
message output. The SRQ bit will be released when there is a
Serial Poll or when the message is read. The factory default is
SRQ mode disabled (switch 7 on). The serial poll response byte
will contain a 1 in bit 4 (this bit is also the MAV (message
available) bit). Bit 6 will be set if an error has occurred.
In this case the pending message will be an error message.
Switch 6 is not used.
Figure 2-21
Top View of IEEE 488 Module.
OFF
7
ON
7
Top View of IEEE 488 Module.
Series 360 Stabil-Ion December, 2001
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