Honeywell Mark III manual Print Definition, Logic Units

4.2.4 Print Definition

The user can define the print format for a message by specifying the field names and associated parameters. Figure 26 shows the print format for a Flight Initialization uplink. This allows the user to define formats for uplink messages, as well as Mark III CMU generated reports to be easily readable by the flight crew. It also allows the flexibility to modify such formats as user requirements change.

Figure 26 Print Format

4.2.5 Logic Units

In addition to the various display types and the conditional display options, the GBST provides an extremely powerful capability called logic units. Logic units allow a user to generate algorithms that can trigger events based upon certain conditions. This provides significant flexibility to a user as user requirements for datalink change, and more complex functions are required. The use of logic units provides a wide range of capabilities. For instance, a display object could be hidden on a screen and made visible only when a specific parameter exceeds a certain value. Logic units can be used to provide a mini-ACMS capability where a downlink message is generated and sent (without flight crew involvement) when a specific condition has been met (such as an engine exceedance). Further, the specified condition can be turned on and off or even changed based upon the value included in an uplink message.

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