Control Output
In addition to signal routing and measurement, you can also use the
HP 34970A to provide simple control outputs. For example, you can
control external high-power relays using the actuator module or a
digital output channel.
The Multifunction Module
The multifunction module (HP 34907A) adds two additional control output
capabilities to the system: digital output and voltage (DAC) output.
The multifunction module also contains digital input and event totalizer
capabilities which are described in more detail on pages 65 and 66.
Digital Output The multifunction module has two non-isolated 8-bit
input/output ports which you can use to output digital patterns. Each
port has a separate channel number on the module and contains 8-bits.
You can combine the two ports to output a 16-bit word.
Bit 0
Digital
Output
Bit 7
Bit 0
Bit 7
8
8
Port 1 (LSB)
Channel 01
Port 2 (MSB)
Channel 02
3
Chapter 3 System Overview
Control Output
67
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