R911337251 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Control Cycle Times: 62.5µs and 125µs Switching Frequencies: 5 Encoder: Endat 2.1 / 1Vpp / TTL encoder Surface Temperature: Higher than 60°C Analog Outputs: 2 Digital I/Os: 3 Safety Function: Safe Torque Off without bus wiring Clock Frequency: Depends on power section Interface Encoder Evaluation: Supported DC Output Voltages: Varies with and without return for encoder Digital Inputs: 16 (2 groups of 8) Digital I/O Extension: Digital I/O extension with SSI encoder interface