The Siemens 6ES5241-1AE12 daughter board expands the digital I/O capacity of SIMATIC S5 programmable controllers. This add-on module mounts directly onto compatible base modules for increased channel density. Its PCB measures 140 mm in height, 60 mm in width, and 25 mm in depth.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Model | 6ES5241-1AE12 |
| Category | Daughter Board / I/O Expansion Module |
| Number of Additional Inputs | 8 channels (24 V DC) |
| Number of Additional Outputs | 8 channels (24 V DC, 0.5 A) |
| Input Voltage Range | 20.4 – 28.8 V DC |
| Output Current | 0.5 A per channel (steady-state) |
| Output Protection | Short-circuit, overcurrent |
| Response Time (Input) | 0.5 ms |
| Response Time (Output) | 0.5 ms |
| Isolation Voltage | 1500 V AC (channel-to-backplane) |
| Power Consumption (5 V) | 2.0 W |
| Power Consumption (24 V) | 3.5 W (all outputs ON) |
| Backplane Current Draw | 400 mA (at 5 V) |
| Dimensions (H×W×D) | 140 × 60 × 25 mm |
| Weight | 0.22 kg |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | –25°C to +85°C |
| Protection Rating | IP20 |
| Mounting Type | Attaches to base module |
| Connector Type | 50-pin ribbon cable |
| Component Count | 44 components |
I/O Expansion and Channel Density
The Siemens 6ES5241-1AE12 adds eight digital inputs and eight digital outputs to the base module. This expansion effectively doubles the I/O density of the host board. Each input channel accepts standard 24 V DC signals from field sensors. Each output drives loads up to 0.5 A for controlling small actuators and indicators.
Installation and Physical Attachment
Attach the Siemens 6ES5241-1AE12 directly onto the compatible base module using the standoffs. A 50-pin ribbon cable provides the electrical connection between the boards. Secure the daughter board with screws for vibration-resistant mounting. This stacking method preserves valuable DIN rail space while increasing channel count.
Output Protection and Fault Handling
This daughter board includes short-circuit protection on all eight output channels. Overcurrent limiting prevents damage when loads draw above the 0.5 A rating. The module automatically resets after the fault condition clears. Such protection ensures reliable operation even with intermittent wiring faults.
Input Signal Detection and Response
The Siemens 6ES5241-1AE12 monitors inputs with a rapid 0.5 ms response time. This speed supports fast field events like limit switch activations and encoder counting. LEDs on the board indicate the status of each input and output channel. These visual indicators simplify troubleshooting during commissioning and maintenance.
Component Layout and Quality
This PCB contains 44 components, including optocouplers, power drivers, and signal conditioning circuits. Surface-mount technology provides compact placement for the dual-sided board. A protective conformal coating shields the circuitry from dust and moisture. Gold-plated edge connectors ensure reliable connection to the ribbon cable.
Power Supply and Energy Management
The Siemens 6ES5241-1AE12 draws 2.0 W from the 5 V backplane supply for logic circuits. A separate 24 V field supply provides 3.5 W with all outputs energized. This split power architecture isolates logic circuits from field-side power fluctuations. The backplane current draw reaches 400 mA under full operational load.
Integration with SIMATIC S5 Modules
This daughter board works with designated SIMATIC S5 digital I/O base modules. Users install the board to increase I/O capacity without adding new modules. The expansion appears as additional addresses in the CPU’s I/O map. This integration allows program access to all channels through standard S5 addressing.
Details
| Weight | 0.12 kg |
|---|---|
| Dimensions | 120 × 80 × 3 mm |
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