Siemens 6ES5110-3SA12 Central Controller

Why This Central Controller Suits Your S5 System

This central controller handles logic execution for small to medium automation tasks. You get a compact Siemens 6ES5110-3SA12 for SIMATIC S5 programmable controllers. It integrates the CPU and power supply into one unit. Therefore, your system saves rack space with this combined design.

Technical Specifications and Physical Details

The Siemens 6ES5110-3SA12 supports up to 8k words of user program memory. It includes a built-in power supply for the backplane voltage. This controller fits into a standard S5 rack slot. Its dimensions measure approximately 250 mm in width and 25 mm in height. The unit weighs around 0.70 kg for straightforward installation. This processor stores its program in battery-backed CMOS RAM. Consequently, your logic remains safe for several months without external power.

Below is the detailed breakdown of the hardware specifications.

Parameter	Specification
Product Model	6ES5110-3SA12
Product Type	Central Controller
Brand	Siemens
Family	SIMATIC S5
Program Memory	8k words (max)
Power Supply	Integrated
Storage Type	Battery-backed CMOS RAM
Slot Requirement	1 S5 rack slot
Dimensions (W x H)	Approx. 250 x 25 mm
Approx. Weight	0.70 kg
Power Source	Backplane + integrated supply
Energy Storage	Battery-backed memory
Component Count	Single integrated board

Installation and Programming Notes

This controller slides into any standard S5 rack slot. You must connect the external 24V DC supply to the terminal block. The Siemens 6ES5110-3SA12 accepts STEP 5 programming language. Therefore, existing S5 logic transfers without major modifications. Always replace the backup battery every two years. A depleted battery will cause complete memory loss during a power outage.