Siemens 6ES5482-3BE11 Digital I/O Module

The 6ES5482-3BE11 combines 16 inputs and 16 outputs on one module. This mixed I/O board saves valuable rack space in SIMATIC S5 systems. It handles both field signal reading and actuator control tasks.

Key Technical Specifications

Parameter	Value
Input Channels	16, 24V DC sink/source
Output Channels	16, 24V DC sourcing (PNP)
Input Current	7 mA per channel
Output Current	0.5 A per channel continuous
Total Output Current	8 A maximum per module
Input Delay	3 ms (ON to OFF)
Output Protection	Short-circuit + thermal
Power Consumption	6 W from backplane
Board Dimensions	23.0 cm x 12.5 cm x 4.0 cm
Weight	0.48 kg (1.06 lbs)
Component Count	168 discrete components
Connection Type	2 x 20-pin screw terminals
Operating Temperature	0°C to 60°C

Physical Dimensions and Component Layout

This module measures 23.0 cm in length and 12.5 cm in width. Its total height reaches 4.0 cm including both terminal blocks. 6ES5482-3BE11 weighs 0.48 kg for stable rack mounting. You will find 168 discrete components on a six-layer PCB.

Moreover, the module integrates a 1500 µF bulk capacitor bank. This bank filters noise on the 24V supply for both input and output circuits. It also provides hold-up during short power interruptions.

Input Channel Characteristics

Each of the 16 inputs uses an optocoupler for signal isolation. The optocoupler separates field wiring from the internal 5V logic. Each input draws only 7 mA from the field supply. A 3 ms filter debounces noisy switch contacts effectively.

Output Channel Design and Protection

Each of the 16 outputs uses a power MOSFET for switching loads. The transistor sources 24V DC directly to solenoids and lamps. Short-circuit protection activates when output current exceeds 0.7 A. Thermal protection shuts down an overheated channel automatically.

Connector Interface and Field Wiring

Two separate 20-pin screw terminal blocks accept field wiring. One block handles all 16 input connections with two commons. The other block manages 16 outputs with two 24V supply terminals. LED indicators sit above each channel for visual status monitoring.

Typical Application Scenarios

You can deploy 6ES5482-3BE11 in SIMATIC S5 systems with limited rack space. It also works well for small machines needing both inputs and outputs. This module reads pushbuttons and sensors while driving small actuators. Its mixed design suits compact control panels efficiently.