Measurement-computing CB-7000 Utilities User Manual download pdf (Page 25)

Figure 3-1. Host PC Periodically Sends Command “~**”

If the “~**” command does not reach the modules, every Host Watchdog sets modules to Safe

States (Figure 3-2).

Figure 3-2. Command “~**” Does Not Reach Modules;

All output command are ignored after the Host Watchdog sets the module to go to a safe state.

The Host PC m ust use the ~AA0 command to r ead the module status, and ~AA1 to clear the

module status (Figure 5-3).

Figure 3-3. All Output Commands Are Ignored Until ~AA1 Clears

The flow chart for the host computer is given in Figure 3-4.

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Measurement-computing CB-7000 Utilities User Manual Page 25