This stream represents windows messages between Robot Arm Operator Master and SCADA/HMI. Whem AGV1 arrives at Unload Station 1 a message is sent to Robot Arm Operator Master that initiates the process of unloading the buffer. After the buffer is unloaded a message is sent back to SCADA/HMI signaling that AGV1 is unloaded and may leave the unload station.
