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Ieee 488 configuration – Measurement Computing TempScan/1100 User Manual

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1-8 System Overview

899493

TempScan / MultiScan User's Manual

The rear panel DIP switch is read only during power-on or reset and should be set before applying power.
To modify any of these defaults, change the microswitch settings using a small screwdriver. The enclosure
does not need to be opened to change these settings.

IEEE 488 Configuration

One way in which the TempScan/1100 or MultiScan/1200 unit can be controlled, is through its IEEE 488
port connector. Consequently, when configured as an IEEE 488 bus device, the unit must have an IEEE
488 bus address.

DIP Switch


For IEEE 488 operation, the single microswitch labeled COMM SELECT should be down (0) on the rear
panel DIP switch . This down (0) position is the factory default. The up (1) position is reserved for
RS-232 serial communication. When IEEE 488 operation is enabled, the five microswitches labeled
IEEE ADDRESS are used to configure the required IEEE 488 bus address.

The bus address can be set from 0 through 30 and is read only at power-on or reset. The address is selected
by simple binary weighting. The switch labeled 1 is the least significant bit (LSB); 16 is the most
significant bit (MSB). The factory default is bus address 7. Note that if address 31 is selected, it defaults
to address 30 because the IEEE 488 standard has reserved address 31.

The rear panel DIP switch is read only during power-on or reset and should be set before applying power.
To modify any of these defaults, change the microswitch settings using a small screwdriver. The enclosure
does not need to be opened to change these settings.

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