Further information for Advantech ADAM-4051-BE -
The ADAM-4051 is a 16-channel isolated digital input module with Modbus. The digital input module with 2500 VDC optical isolation is suitable for safety-related applications. Unlike other modules, the ADAM-4051 can have an input voltage
16 digital input channels
Digital input potential-free and live contact
Input voltage: 10 - 50 V
Surge protection: 70 VDC
2,500 VDC optically isolated