Compatibility

The extended interface version EnDat 2.2 is compatible with the previous version 2.1 in terms of communication, command sets and time conditions, but offers significant advantages. For example, it is possible to send additional information with the position value without having to start a separate query. To this end the interface protocol has been extended and the time conditions optimized as follows:

• Increased clock frequency (CLOCK)
• Optimized computing time (determination of position value within 5 µs)
• Minimize recovery time (1.25 to 3.75 μs)
• Extended voltage supply range (U_P = 3.6 to 5.25 V or 3.6 to 14 V at the encoder)

EnDat 2.2 with command set (includes EnDat 2.1 command set)

• Position values for incremental and absolute encoders
• Additional information on the position value
• Diagnosis, test values
• Absolute position values after referencing incremental encoders
• Sending and receiving parameters
• Commutation
• Acceleration
• Limit position signal
• Position value 2 for safety-related applications or incremental encoders
• EnDat with command set 2.1
• Absolute position values
• Sending and receiving parameters
• Reset
• Test command
• Test values