Siemens 6ES5 476-5AA11

Siemens 6ES5 476-5AA11 digital input module
Scope:
Expansion module for Siemens S7-400 PLCs
It allows the interface of digital signals to the PLC
Specifications:
Entry:
16 optocoupled digital inputs
Input voltage: 24 VDC
Input current: 3.5 – 5.5 mA at logic input "high"
Input resistance: 4.2 kΩ
Output:
N/A (no outputs available)
Communication:
It connects to the S7-400 PLC via the Profibus DP bus
Features:
Electrical isolation between inputs and PLC
Short circuit and overload protection on each input channel
Status LEDs to display input channel status
DIN rail mounting
Degree of protection IP20
Applications:
Monitoring the status of contactors, sensors and switches
Level detection in tanks
Control of gates and barriers
Automation of industrial processes
Remarks:
The module requires a separately supplied 24 VDC power supply.
It is recommended to use a 220 Ω resistive shunt on each input channel to absorb any induced currents.