Built-In Status Tests; Overview; Receiver Status Word - Novatel ProPak6 User Manual

Chapter 8
8.1

Overview

The Built-In Status Test monitors system performance and status to ensure the receiver is operating
within specifications. The test detects an exceptional condition and informs the user through one or more
indicators. The receiver status system is used to configure and monitor the indicators:
1. Receiver status word (included in the header of every message)
2. ERROR strobe signal (see 3.1.14.1, Strobes on page 42)
3. RXSTATUSEVENT log
4. RXSTATUS log
In normal operation, the error strobe is driven low. When an unusual and non-fatal event occurs (for
example, there is no valid position solution), a bit is set in the receiver status word. Receiver operation
continues normally, the error strobe remains off. When the event ends (for example, when there is a valid
position solution), the bit in the receiver status word is cleared.
When a fatal event occurs (for example, a receiver hardware failure), a bit is set in the receiver error
word, part of the RXSTATUS log, to indicate the cause of the problem. Bit 0 is set in the receiver status
word to show that an error occurred, the error strobe is driven high. An RXSTATUSEVENT log is
generated on all ports to show the cause of the error. Receiver tracking is disabled but command and log
processing continues to allow error diagnosis. Even if the source of the error is corrected, the receiver
must be reset to resume normal operation.
Two scenarios describe factory default behavior. These behaviors can be customized to better suit an
individual application. RXSTATUSEVENT logs can be disabled completely with the UNLOG command.
RXSTATUSEVENT logs can be generated when a receiver status bit is set or cleared with the
STATUSCONFIG SET and STATUSCONFIG CLEAR commands. Bits in the receiver status word can also
be promoted to act like error bits with the STATUSCONFIG PRIORITY command.
8.2

Receiver Status Word

The receiver status word indicates the current status of the receiver. This word is found in the header of
all logs and in the RXSTATUS log. In addition, the receiver status word is configurable.
The importance of the status bits with priority masks can be determined. For receiver status, setting a bit
in the priority mask causes the condition to trigger an error. The error causes the receiver to idle all
channels, turn off the antenna and disable the RF hardware, just like it would if a bit in the receiver error
word is set. Setting a bit in an Auxiliary Status priority mask causes the condition to set the bit in the
receiver status that corresponds to the auxiliary status.
Use the STATUSCONFIG command to configure the various status mask fields in the RXSTATUS log.
Use the masks to specify whether various status fields generate errors or event messages when set or
cleared.
Refer to the RXSTATUS log, RXSTATUSEVENT log and STATUSCONFIG command in the
Firmware Reference Manual
106

Built-In Status Tests

for more detailed descriptions of these messages.
ProPak6 Installation and Operation User Manual Rev 4
OEM6 Family