The annunciators, their corresponding buzzer numbers, and the definitions of the annunciators are:
Default (0) - Not used
Delay (1) - The Delay annunciator sounds when the time for a delay has elapsed. This annunciator will only sound if the Buzzer check box in the Select Delay dialog is checked.
Unused (2) - Not used.
Message (3) - Text messages can be configured in order to trigger the Message annunciator. The sender of the message determines whether or not the annunciator will sound on the CAESultra unit that receives the message.
Loader (4) - Not used
Material (5) - The Material Warning dialog triggers the Material annunciator to sound. If the Material annunciator is configured, it sounds whenever the Material dialog appears.
Avoidance (6) - Not used.
Truck Select (7) - The Truck Select annunciator, which is used to remind an operator to select a truck, is similar to the Material annunciator. If configured, this annunciator sounds whenever the Select Trucks dialog remains open for a specified amount of time.
On Grade (8) - The On Grade annunciator sounds when the cutting edge of the machine is within the specified "on grade" tolerance. The annunciator can be silenced with the Silence Grade Alarm tool.
Above Grade (9) - The Above Grade annunciator sounds when the cutting edge of the machine is within a specified range above the On Grade tolerance. The annunciator can also be configured in order to sound when the cutting edge is at any elevation above this tolerance. It can be silenced with the Silence Grade Alarm tool.
Below Grade (10) - The Below Grade annunciator sounds when the cutting edge of the machine is within a specified range below the On Grade tolerance. The annunciator can also be configured to sound when the cutting edge is at any elevation below this tolerance. It can be silenced with the Silence Grade Alarm tool.
Low Accuracy (11) - The Low Accuracy annunciator can be configured to sound any time the GPS accuracy drops below the specified GPS High Error Limit. The annunciator can be silenced with the "Silence Grade Alarm" tool.
Avoid Warn (12) - The Avoid Warn annunciator sounds when Avoidance Zone or Avoidance Surface warning messages appear.
Configuring the Audible Device
The audible device that is used by CAESultra is the 167-8709 Alarm Gp-Basic . The audible device can be connected directly into the Navigator via the 70 pin connector. Table 1 shows the recommended wiring configuration for the device.
| 167-8709 Alarm Gp-Basic | Navigator 70 pin plug |
| Positive terminal | Pin 6: +5VDC Output (500mA) |
| Negative terminal | Pin 39: Digital Data 7 |
The wiring configuration described in Table 1 must be accompanied by the Reverse Buzzer Output key.
$ Reverse Buzzer Output - This key sets the digital output to Low in order to turn the buzzer on. If this key is not used, then the digital output is set to High in order to turn the buzzer on.
Note: The recommended configuration results in a strong audible signal. However, in some cases the recommended configuration can cause an audible signal to start as soon as Navigator is powered up. The audible signal is stopped when CAESultra starts.
Table 2 illustrates an alternative wiring scheme that results in a weaker signal. The alternative configuration does not require the $ Reverse Buzzer Output key. If this configuration is used, then there is no audible signal problem when Navigator powers up.
| 167-8709 Alarm Gp-Basic | Navigator 70 pin plug |
| Positive terminal | Pin 34: Digital Data 4 |
| Negative terminal | Pin 6: +5VDC Output (500mA) |
The
Audible Device Options
Each audible signal has a default configuration. The following keys can be used in order to reconfigure the audible signals.
$ Buzzer Tone - Defines a series of hexadecimal numbers that correspond to the time that the audible signal is either on or off. Up to twenty tone bytes may be added.
The hexadecimal characters "ff" turn the audible signal on. The hexadecimal character "0" turns the audible signal off. The following code will result in the audible signal for a message with an alternating on and off tone.
$ Buzzer Tone 3 =ff 0 ff 0 ff 0
$ Buzzer Repeat Delay - Sets the amount of time that the buzzer is off after each set of tone bytes.
$ Buzzer Max Duration - Sets the length of time that the buzzer sounds before turning off. Some annunciators should never turn off. Other annunciators, such as message notifications, should be configured with short beeps.
Annunciator Test
Use the following steps in order to test the annunciator wiring and configuration.
- Select "Test" from the CAESultra menu. The "Test" menu is opened.
- Select "Buzzer Test". The "Buzzer Test" dialog opens.
- Press the arrow control button in order to open the buzzer number list.
- Select the number of the buzzer that is to be simulated.
- Press the "On" button. The selected buzzer is played. Press the "Off" button in order to stop the buzzer.
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| Illustration 1 | g01190991 |
Buzzer test dialog with the Message (3) annunciator selected. | |
Note: Multiple buzzers can be tested at once. Additionally, the buzzers can be tested without having an audible device connected. If an audible device is not connected, then the Annunciator window (Illustration 2) is used in order to monitor the buzzer state changes as the tests are applied.
Annunciators Window
The "Annunciators" window provides summary information about the state of the various annunciators. The window can be used without having an audible device connected.
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| Illustration 2 | g01044692 |
The State column shows the current state of each annunciator. The possible states are Off, On, Play and Delay.
When an annunciator is active, the annunciator state will either be "Play" or else it will be Delay. Only one annunciator can be playing at one time. If a condition exists wherein more than one annunciator is active, then the most recently activated annunciator will be in a Play state. The less recently activated annunciators will be in a Delay state.
The tone for the annunciator that is in a Play state will be heard by the operator until the tone terminates or until the tone is cancelled. When the annunciator that is in the play state terminates, the next most recently activated annunciator sounds and the state changes from Delay to Play.