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This digital output module drives actuators from SIMATIC S5 PLC systems. It provides 16 channels for controlling solenoids, contactors, and signal lamps. Therefore, this component suits factory automation and machine control applications.
Physical Dimensions and Weight Specifications
The Siemens 6ES5440-8MA22 occupies one standard slot in the S5 rack. Its housing measures 233 mm in depth for backplane connectivity. The module weighs approximately 0.44 kg for straightforward handling. Consequently, technicians can install this unit without additional rack reinforcement.
| Parameter | Specification |
|---|---|
| Product Model | Siemens 6ES5440-8MA22 |
| Slot Width | 1 x standard S5 slot |
| Depth | 233 mm |
| Height | 260 mm |
| Weight | 0.44 kg |
Interface Types and Connection Layout
The Siemens 6ES5440-8MA22 provides a 48-pin front connector for field wiring. A 20-pin backplane connector supplies power and data from the CPU. The front panel carries 16 green LED indicators for output status. Hence, operators can monitor all channels at a quick glance.
Component Count and Channel Configuration
This digital output module contains one main board with 16 transistor output channels. Each channel provides 0.5A continuous current at 24V DC. You will also find optocoupler isolation between the backplane and field side. An onboard serial-to-parallel converter reduces backplane pin count.
| Technical Feature | Description |
|---|---|
| Output Channels | 16 |
| Output Type | 24V DC, high-side transistor |
| Current per Channel | 0.5A continuous, 1.0A peak |
| Isolation Method | Optocoupler, 1500V AC |
| Protection | Short-circuit and overtemperature |
Energy Storage and Power Consumption
The Siemens 6ES5440-8MA22 draws 85 mA from the 5V backplane supply. It requires an external 24V supply for output load power. A small capacitor bank absorbs voltage spikes from inductive loads. This storage protects the transistors during solenoid switching events.
Output Performance and Diagnostic Features
The module updates all 16 outputs within a 1 ms cycle time. Each channel includes short-circuit detection with automatic shutdown. Users can read diagnostic status via the S5 programming software. This feature reduces downtime during field wiring faults.