Siemens SIMATIC S5-100U CPU 103 Central Processing Unit (6ES5 103-8MA02)

SKU 6ES5103-8MA02

Integrated Power Supply Unit: Includes an internal power converter accepting 24 V DC main supply input to power internal backplane logic (9 V DC internal bus).

Enhanced Logic & Interrupt Handling: Features advanced instruction execution capability, including hardware interrupt processing (OB13) and precise time-controlled program blocks.

Plug-in Memory Submodule Slot: Accommodates external EPROM/EEPROM memory submodules to retain system programs safely without battery dependency.

Front Panel TTY Interface: Features an integrated TTY (20 mA current loop) programming port for direct communication with PG series programmers or serial HMI displays.

Diagnostic Indicators: Front LED indicators supply real-time operational diagnostics (RUN, STOP, BASP) for immediate monitoring and fault tracking.

Manufacturer

SIEMENS

Manufacturer material ID

6ES5103-8MA02

Category

PLC

HS code

85371091

UNSPSC

32151705

Availability

READY TO SHIP

Highlights

Manufacturer Siemens
Product Series SIMATIC S5 / S5-100U
Part Number (MLFB) 6ES5103-8MA02 (6ES5 103-8MA02)
CPU Model CPU 103
Supply Voltage 24 V DC (integrated 24V/9V converter)
Memory Architecture Internal RAM with EPROM/EEPROM Submodule Slot
Interface TTY (20 mA Current Loop Programming Port)
Mounting Style SIMATIC S5-100U Bus Unit / DIN Rail

Additional information

Widely utilized in legacy machine control panels, conveyor automation, packaging systems, and small processing skids where compact footprint S5-100U modular control remains active.