CHAPTER 11. LOGIC CHANNELS
47
11.2 Logic channel setup
To set the logic channels, press the “logic channels” button on the “Home” screen, or from the “F(t)” screen,
click within the logic signal portion of the screen when present, See figure
. The configuration screen will
open and resemble Figure
.
The set of channels depends on the number of channels chosen. For a given number of channels, the signals
enabled on the connector is fixed. For example, if 4 channels are enabled by the up/down arrows beside the text
listing the number of channels, then pins 13, 25, 12, and 24, will be active. They become channels 1-4
respectively.
Note:
Logic inputs are 3.3V TTL level and 24V tolerant.
Figure 11.2: Logic channels on the F(t) screen
1. Channel number, color and arrows to change
channel
2. Channel count
3. Enable logic channels
4. Connector (red - selected channel)
5. Additional pin information
6. Channel #, pin, and state (dim - disabled)
Figure 11.3: Logic channel configuration screen
11.3 Timing
Function channels K1-4 are used for measuring the PWM duty cycle, count, or frequency of up to 4 digital
signals. They are also 3.3V level signals and tolerant of 24V.
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