1. EFCS I/O

2. ISA1 Input Data
EFCS Control
Subsystem
DMS
ISA2 Input Data
ISA3 Input Data
ST1 Input Data
ST2 Input Data
Command Data
Telemetry Data
PPM Commands
ST Commands

3. Inertial Sensor Assembly (ISA) Inputs
Calculated automatically in simulation
Defined in gnc_1553_system_objects.ads
3 Sensors; 2 records per sensor
Note that the output of the ISA is an input to EFCS
ISA1_OUTPUT_DATA_M : ISA_OUTPUT_DATA_M01_TYPE;
ISA1_OUTPUT_DATA_M : ISA_OUTPUT_DATA_M02_TYPE;
ISA2_OUTPUT_DATA_M : ISA_.OUTPUT_DATA_M01_TYPE;
ISA2_OUTPUT_DATA_M : ISA_OUTPUT_DATA_M02_TYPE;
ISA3_OUTPUT_DATA_M : ISA_OUTPUT_DATA_M01_TYPE;
ISA3_OUTPUT_DATA_M : ISA_OUTPUT_DATA_M02_TYPE;

4. Star Tracker Inputs Calculated automatically in simulation
Defined in gnc_1553_system_objects.ads
2 Sensors
Note that the output of the Star Tracker is an input to EFCS
ST1_OUTPUT_DATA : ST_OUTPUT_DATA_T;
ST2_OUTPUT_DATA : ST_OUTPUT_DATA_T;

5. Command Data Defined in gnc_ul_system_objects.ads Mode commands
Attitude commands
Provided to Control subsystem using Scripting language (Timeliner) in version given to you
Can be changed using Timeliner script, or using software
Look at mit _script.tls for script being used
env_uplink.ads defines numeric codes for command data (see “defines” at the beginning of the script)
Run tl_main.exe to compile a script
It will prompt for input script (*.tls)
No options are needed
It will produce *.tlx as output (same name as input)
Rename to cc_script.tlx for EFCS software to use it

6. Telemetry Data Should contain all data needed by Test Team
Currently defined as follows
gnc_hfe_system_objects.ads
ATTITUDE_IB : ATTITUDE_IB_T;
ATTITUDE_RATE : ATTITUDE_RATE_T;
gnc_mfe_system_objects.ads
SSF_USER_STATE : SSF_USER_STATE_T;
ACF_COMMAND : ACF_COMMAND_T;
gnc_cs_system_objects.ads
GNC_CS_OUTPUT : GNC_CS_OUTPUT_T;

7. PPM Commands Used automatically by simulation
Output from student-generated code
Defined in:
gnc_1553_system_objects.ads
PPM1_COMMAND_DATA : PPM_COMMAND_DATA_T;
PPM2_COMMAND_DATA : PPM_COMMAND_DATA_T;

8. Star Tracker Commands Used automatically by simulation
Defined in gnc_1553_system_objects.ads
2 Sensors; 2 records per sensor
Note that the output of the Star Tracker is an input to EFCS
ST1_COMMAND_DATA : ST_COMMAND_DATA_T;
ST2_COMMAND_DATA : ST_COMMAND_DATA_T;