CABLE 5471523 - Caterpillar

a truck sends a loader a LoadRequest message, the loader must respond with an acknowledgment (ACK) message. The truck then uses the position in the ACK message to update the loading status of the truck.The loading status can be any of the following:
"Unknown"
"Waiting"
"Traveling"
"Spotting"
"Loading"
"Dumping"
"Route end"
"Out of service"The MCU setting "Peer To Peer Diagnostics Enabled" allows the messages that are sent from the on-board software to the truck to be sent simultaneously to the office software as a diagnostic message. The diagnostic message, which is called a PeerToPeerPayload message, includes the following:
LoadRequest message from the truck
ACK message from the machineThe diagnostic message is shown in the "Field Comms" window of the office software when peer to peer diagnostics is enabled.