Did you know that the aircraft cockpit and ECAM system is run entirely via the communications in the AFDX? All that System Display numbers and monitoring for

ATC Communications

wing anti ice,

fire protection,

Electrical load management system,

Engine interface and monitoring,

Flight control data concentrator system

Oxygen system,

flight warning system,

doors and slides,

Bleed air,

vent control,

Hydraulic Quantity control and monitoring

Fuel quantity control and monitoring calculations

and Landing gear monitoring

get data passed through the AFDX before being displayed in the ECAM and SD Pages as sort of like a group of middlemen. One example is the sensed items during an active abnormal checklist messages in which buttons in the cockpit are pressed to finish the sensed item. I think that each CPIOM module was in charge of those items such as bleed, engine, fire, fuel or landing gear respectively.

I already have a diagram of the AFDX in this forum.

In the event of the total loss of the AFDX, you get the FWS 1 + 2 and CPIOM Fault.

Caption: Currently in the ini350v1 its not working as it should.

Caption: How the FWS recieves data to display appropriate faults.

For Example, When both Flight Warning Systems (FWS) are not working (they are hosted on CPIOMs, and they could lose power!), the aircraft loses its capability to display any ECAM alerts and procedures. Instead, a rudimentary screen is displayed by the Control and Display System (CDS) in its place to provide the pilots with limited information. Because of its limited capabilities, it will not paginate the lines, instead, depending on which CPIOM is working or not, it'll show/hide certain lines that are applicable/not applicable.

Caption; Notice how door page has only amber crosses because the distributor IMA is still booting with the FWS. The fire test sound isnt working while CPIOM Fault display was implemented in yours so...

Based on the virgin atlantic FCOM, each group controls and monitors the following systems, probably contains all of the data displayed in the SD ECAM:

AFDX	CPIOM number 1	CPIOM number 2	CPIOM number3	CPIOM number 4
CPIOM group j1	FWS1	FWS2
CPIOM group j2	FPF 1 EIF1.1 AICF 1	FPF 2 EIF2.2 AICF 2	FPF 3 EIF1.2 AICF 3	FPF 4 EIF2.1 AICF 4
CPIOM group H3	Hydraulic HMCA Yellow 1 Doors and slides Control system 1 FQMS control system 1 Inert gas generation system 1	Hydraulic HMCA Yellow 2 Doors and slides Control system 2 FQMS control system 2	Hydraulic HMCA Green 1 Doors and slides Control system 3 FQMS monitor system 1 Oxygen system and control monitoring 1	Hydraulic HMCA Green 2 Doors and slides Control system 4 FQMS monitor system 2 Oxygen system and control monitoring 2
CPIOM group H4	Air conditioning system 1 CPCS 1 Ventilation control system VCS L1	Air conditioning system 2 CPCS 2 Ventilation control system VCS L2	Bleed air system 1 Supplemental cooling system 1 Wing Ice protection system 1 OverHeat detection system 1	Bleed air system 2 Supplemental cooling system2 Wing Ice protection system 2 OverHeat detection system 2
CPIOM group J5	Avionics Communication Router ATC system
CPIOM group H6	BCS Control system 1 LGERS 1 WSCS Monitoring system 1 LGMS 1	BCS Control system 2 LGERS 2 WSCS monitoring system 2 LGMS 2	BCS Monitoring system 1 LGERS 1 WSCS Control system 1	BCS Monitoring system 2 LGERS 2 WSCS Control system 2
CPIOM group J7	FCDC1 FCU Backup 1 Elec load management function 1 Exterior light controller 1	FCDC2 FCU Backup 2 Elec load management function 2 Exterior light controller 2

Thus, what happens if you get a failure of a single group of CPIOM? You get a system connected to the AFDX with the failure of the module with the subtitle called

DUE TO IMA Module fault.

Edited 6 hours ago6 hr by schizzel

Hi,

Thank you for taking the time to share such a detailed report!

I will pass this along to the team for further review.

Thanks again!