A data communication system is configured to obtain operational data associated with a control system of a vehicle consist. The operational data is obtained at a first vehicle of the consist. The operational data is communicated from the first vehicle to one or more second vehicles in the consist. R
A data communication system is configured to obtain operational data associated with a control system of a vehicle consist. The operational data is obtained at a first vehicle of the consist. The operational data is communicated from the first vehicle to one or more second vehicles in the consist. Responsive to a loss of the operational data at the first vehicle, at least the operational data that was lost at the first vehicle can be communicated from one or more of the second vehicles to the first vehicle. Onboard the first vehicle, an operational capability of the consist to perform a movement event can be determined using the operational data that was lost at the first vehicle and that was communicated from the at least one of the one or more second vehicles to the first vehicle.
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1. A method comprising: obtaining operational data associated with one or more control systems of a vehicle consist formed by at least a first vehicle and one or more second vehicles traveling together along a route, the operational data obtained at the first vehicle of the vehicle consist, the oper
1. A method comprising: obtaining operational data associated with one or more control systems of a vehicle consist formed by at least a first vehicle and one or more second vehicles traveling together along a route, the operational data obtained at the first vehicle of the vehicle consist, the operational data configured to be used to determine an operational capability of the vehicle consist;communicating the operational data from the first vehicle to at least one of the one or more second vehicles in the vehicle consist;responsive to a loss of the operational data at the first vehicle, communicating at least the operational data that was lost at the first vehicle from at least one of the one or more second vehicles to the first vehicle; anddetermining, onboard the first vehicle, the operational capability of the vehicle consist to perform a movement event using at least the operational data that was lost at the first vehicle and communicated from the at least one of the one or more second vehicles to the first vehicle. 2. The method of claim 1, wherein the one or more control systems includes a brake system of the vehicle consist, and wherein obtaining the operational data includes measuring one or more characteristics of the brake system and determining the operational capability includes calculating a braking effectiveness rating of the vehicle consist. 3. The method of claim 2, wherein measuring the one or more characteristics of the brake system includes measuring one or more of air pressure in the brake system, a rate of air flow in the brake system, a braking force of the brake system, a temperature of the brake system, a temperature of the vehicle consist, or a volume of air in the brake system. 4. The method of claim 1, wherein the vehicles in the vehicle consist are communicatively coupled by one or more cables, and wherein the operational data is communicated from the first vehicle to the one or more second vehicles via the one or more cables. 5. The method of claim 4, wherein the one or more cables include a multiple unit (MU) cable and the operational data is communicated from the first vehicle to the one or more second vehicles via the MU cable. 6. The method of claim 1, further comprising detecting a fault event onboard the first vehicle, wherein the loss of the operational data is responsive to detecting the fault event. 7. The method of claim 1, further comprising communicating a request for the operational data that was lost from the first vehicle to the one or more second vehicles responsive to the loss of the operational data at the first vehicle. 8. The method of claim 7, further comprising, onboard the one or more second vehicles, identifying recent operational data from among the operational data received from the first vehicle, the recent operational data being received at the one or more second vehicles more recently than one or more other parts of the operational data received at the one or more second vehicles from the first vehicle, wherein the recent operational data is communicated from at least one of the one or more second vehicles responsive to receiving the request for the operational data. 9. The method of claim 1, further comprising communicating at least part of the operational data received from the first vehicle between two or more of the second vehicles. 10. A system comprising: a transceiver unit configured to be disposed onboard a first vehicle of a vehicle consist formed by the first vehicle and one or more second vehicles traveling together along a route, the transceiver unit also configured to obtain operational data associated with one or more control systems of the vehicle consist, the operational data configured to be used to determine an operational capability of the vehicle consist;a memory configured to be disposed onboard the first vehicle and to store the operational data obtained from the one or more second vehicles in the vehicle consist,wherein the transceiver unit also is configured to communicate the operational data from the first vehicle to at least one of the one or more second vehicles in the vehicle consist and, responsive to a loss of the operational data from the memory onboard the first vehicle, the transceiver unit is configured to receive at least the operational data that was lost at the first vehicle from at least one of the one or more second vehicles; anda controller configured to be disposed onboard the first vehicle and to determine the operational capability of the vehicle consist to perform a movement event using at least the operational data that was lost at the first vehicle and communicated from the at least one of the one or more second vehicles to the first vehicle. 11. The system of claim 10, wherein the one or more control systems includes a brake system of the vehicle consist, the transceiver unit is configured to receive one or more measured characteristics of the brake system as the operational data obtained from the one or more second vehicles in the vehicle consist, and the controller is configured to calculate a braking effectiveness rating of the vehicle consist as the operational capability of the vehicle consist. 12. The system of claim 11, wherein the transceiver unit is configured to receive one or more of air pressure in the brake system, a rate of air flow in the brake system, a braking force of the brake system, a temperature of the brake system, a temperature of the vehicle consist, or a volume of air in the brake system as the one or more measured characteristics. 13. The system of claim 10, wherein the vehicles in the vehicle consist are communicatively coupled by one or more cables, and wherein the transceiver unit is configured to communicate the operational data from the first vehicle and receive the at least the operational data that was lost to the first vehicle via the one or more cables. 14. The system of claim 13, wherein the one or more cables include a multiple unit (MU) cable and the transceiver unit is configured to communicate the operational data from the first vehicle and receive the at least the operational data that was lost as one or more network data packets via the MU cable. 15. The system of claim 10, further comprising plural additional transceiver units configured to be disposed on two or more of the second vehicles, the additional transceiver units configured to communicate at least part of the operational data received from the first vehicle between the two or more of the second vehicles. 16. The system of claim 10, wherein the transceiver unit is configured to communicate a request for the operational data that was lost from the first vehicle to the one or more second vehicles responsive to the loss of the operational data at the first vehicle. 17. A system comprising: a controller configured to be disposed onboard a lead vehicle in a vehicle consist that includes the lead vehicle and one or more remote vehicles, the controller configured to remotely control operation of the one or more remote vehicles to control movement of the vehicle consist; anda brake sensing device configured to be disposed onboard the vehicle consist and to measure characteristic of an air brake system of the vehicle consist,wherein the controller is configured to store the characteristic of the air brake system that is measured by the brake sensing device and to communicate the characteristic of the air brake system to at least one of the remote vehicles for storage onboard the at least one of the remote vehicles, andwherein, responsive to a fault at the controller that causes loss of the characteristic of the air brake system at the controller of the lead vehicle, the controller is configured to receive, from the at least one of the remote vehicles, the characteristic of the air brake system that was communicated from the controller to the at least one of the remote vehicles. 18. The system of claim 17, wherein the characteristic of the air brake system includes one or more of air pressure in the brake system, a rate of air flow in the brake system, a braking force of the brake system, a temperature of the brake system, a temperature of the vehicle consist, or a volume of air in the brake system. 19. The system of claim 17, wherein the controller also is configured to determine a brake effectiveness rating of the air brake system using the characteristic of the air brake system and the controller is configured to prevent the movement of the vehicle consist responsive to the fault at the controller until at least a time at which the characteristic of the air brake system is received from the at least one of the remote vehicles and the controller determines that the brake effectiveness rating exceeds one or more designated thresholds. 20. The system of claim 17, wherein the controller is configured to communicate the characteristic of the air brake system to the at least one of the remote vehicles and to receive the characteristic of the air brake system from the at least one of the remote vehicles as one or more network data packets via a multiple unit (MU) cable extending along the vehicle consist.
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