Page 3-16
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 1
190-00716-01
3.8.5
Configuration File Storage
The G1000 system is designed to store all configuration settings in various places so that the
configuration is retained in the aircraft during maintenance of units.
During system configuration, each file is sent directly to the applicable LRU where it is stored in local
LRU memory (except GRS 77 & GDC 7400). Each file is also stored in the PFD internal memory. The
applicable PFD also sends a copy of all configuration files to the ‘Master Configuration module’, located
in the connector backshell (see Section 6.16). If the PFD is replaced, the configuration module retains all
configuration files in the aircraft.
NOTE
The GRS 77 AHRS and GMU 44 Magnetometer do not have a configuration file.
However, these LRUs do store calibration data acquired during the post installation
checkout, which are characteristic to the specific installation. While performing
maintenance on these units, re-calibration may be required. See Section 7.7.1 for more
information on re-calibration criteria.
No. 1 GDU 1040A PFD
Contains ‘ACTIVE’ PFD settings.
Represents ‘SET’ column for all
LRUs. Stores all configuration files in
internal memory. Uses master
configuration module for backup.
G1000 Master Configuration Module
(located in PFD backshell connector)
Master configuration module contains identical
backup configuration files of PFD configuration
memory. PFD cross-checks these backup files
against files contained with PFD memory. PFD self-
configures to match master configuration module.
GMA 1347D
Contains ‘ACTIVE’
GMA settings. Uses
PFD internal
configuration files for
backup.
No. 1 GIA 63W
Contains ‘ACTIVE’
settings. Uses PFD
internal configuration
files for backup.
GDU 1500 MFD
Contains ‘ACTIVE’
MFD settings. The
MFD uses PFD
internal
configuration files
for backup.
No. 2 GDU 1040A PFD
Contains ‘ACTIVE’ PFD settings.
Represents ‘SET’ column for all
LRUs. Stores all configuration files in
internal memory. Uses master
configuration module for backup.
No. 2 GIA 63W
Contains ‘ACTIVE’
settings. Uses PFD
internal configuration
files for backup.
GMA 1347D
Contains ‘ACTIVE’
GMA settings. Uses
PFD internal
configuration files for
backup.
No. 1 GTX 33
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
No. 1 GEA 71
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
No. 2 GEA 71
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
No. 2 GTX 33
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
GCU 477
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
GMC 710
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
GDL 69A
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
GWX 68
Contains
‘ACTIVE’
settings. Uses
PFD internal
configuration files
for backup.
RS-232
RS-232
HIGH-SPEED DATABUS
(ETHERNET)
RS
-2
3
2
RS-232
RS-232
RS-485
RS-485
RS-2
3
2
RS-2
3
2
RS-485
RS-485
Figure 3-14, G1000 LRU Configuration File Storage
Summary of Contents for Cessna Caravan G1000
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