Encoder Technology

1. Encoder basics

1.1 Incremental encoders
1.2 Absolute encoders

2. How incremental encoders work

2.1 Incremental encoders measuring principle
2.2 Resolution, line count and pulse rate
2.3 Measuring steps
2.4 Accuracy
2.5 Channel searation on incremental encoders

3. Encoder interfaces: Incremental interfaces

3.1 TTL electronics/RS422
3.2 HTL and HCHTL electronics

4. Encoder interfaces: Absolute electrical interfaces

4.1 Parallel
4.2 Analog
4.3 BiLL
4.4 Serial point-to-point
4.5 EnDat 2.1
4.6 EnDat 2.2
4.7 SSI

5. Encoder interfaces: Fieldbus interfaces and communication protocols

5.1 PROFIBUS DP
5.2 PROFINET IO
5.3 CANopen
5.4 DeviceNet
5.5 DRIVE-CLiQ

6. Hollow shaft or solid shaft encoders?

6.1 Encoders with solid shaft
6.2 Encoders with hollow shaft
6.3 Typical installation errors and the consequences
6.4 Choosing the right shaft type