1. Reliability and protection mechanism: All information is transmitted according to the Hamming distance HD=4. The DP slave has a Watchdog Timer (Watchdog Timer). Access protection for the input/output of the DP slave. User data transmission monitoring with variable timer on the DP master station.
2. Device type: The second type of DP master (DPM2) is a device that can be programmed, configured, and diagnosed. The first type of DP master station (DPM1) is a central programmable controller, such as PLC.PC and so on. DP slave is a driver with binary value or analog input and output, valves, etc.
