SIEMENS 6ES7138-4DB03-0AB0 electronic module

Absolute encoder connection
Position measurement and control
Industrial automation systems
High-precision motion control
Synchronized data acquisition and processing

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SIEMENS 6ES7138-4DB03-0AB0 is an electronic module for the SIMATIC ET 200S distributed I/O system. It enables connection of absolute encoders via SSI (Synchronous Serial Interface) and supports advanced features like digital input, comparison value, and clock synchronization.

Interface: SSI
Resolution: 13–25 bit (configurable)
Data rate: Up to 1 MHz
Supply voltage: 24 V DC (20.4–28.8 V)
Digital input: 1
Encoder supply: 24 V (L+ - 0.8 V)
Code formats: Binary and Gray
Cable length: Up to 320 m (at 125 kHz)
Status LEDs: SF (red), input/output (green), forward/backward counting
Potential separation: Between counter and backplane bus
Dimensions: 15 x 81 x 52 mm
Weight: Approx. 40 g

Data Sheet