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This central processing unit runs automation programs for small SIMATIC S5 applications. It combines a CPU and power supply in a single compact housing. You can operate this unit without an additional external rack.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | Siemens |
| Model | Siemens 6ES5100-8MA02 |
| Category | Central Processing Unit (SIMATIC S5 Series) |
| Dimensions (H x W x D) | 220 mm x 90 mm x 150 mm |
| Weight | 1.05 kg |
| Processor Type | 8-bit microcontroller |
| Program Memory | 2 KB RAM (battery-backed) |
| Load Memory | 2 KB EPROM (integrated) |
| Data Memory | 128 bytes of flags and counters |
| Processing Speed | 20 ms per 1K of bit logic |
| Number of Internal Components | 1 CPU + 1 power supply + 1 memory chip |
| Built-in I/O | 8 digital inputs + 6 digital outputs |
| Input Voltage | 24 V DC ±20% |
| Input Type | Sink/source (24 V DC) |
| Output Type | Transistor (0.5 A per channel, protected) |
| Interface Type | 1x TTY programming port + removable terminal blocks |
| Built-in Energy Storage | 470 µF capacitor + replaceable battery socket |
| Battery Type | 3.6 V lithium (CR123A or equivalent) |
| Data Retention (with battery) | Approximately 30 days |
| Status Indicators | 4 LEDs (POWER, RUN, STOP, BATT) |
| Operating Temperature | 0°C to 55°C |
Detailed Feature Overview
This central unit includes a CPU and power supply in one module. It features 8 digital inputs and 6 transistor outputs onboard. Consequently, you do not need separate I/O cards for small machines.
A 470 µF capacitor bridges short power interruptions effectively. With a lithium battery, data retention reaches about 30 days. The processing speed of 20 ms per 1K suits basic control tasks well.
You will find removable terminal blocks for all I/O connections. These blocks accept wires from 0.5 to 1.5 mm² easily. The TTY programming port connects to a PC via an appropriate adapter.
Installation and Programming
Siemens 6ES5100-8MA02 mounts directly on a 35 mm DIN rail without a rack. Use STEP 5 software to write and transfer your control program. Connect the 24 V DC supply observing correct polarity.