If your system requires multiple sensors, we recommend ElastiSense Monitoring Systems, containing multiple daisy-chained sensors and a controller to handle communication and data processing.
The controller communicates with the sensors over a full duplex RS485 network. The controller receives real-time, synchronised data from the sensors, analyses it, then sends information (signals, data, alarms) to the machine controller, operator, or a supervisory controller.
The controller used for this is a standard, versatile controller from National Instruments, from their cRIO Series. It can be configured to communicate with your system with a protocol of your choice, as there is a wide range of corresponding communication modules available.