Siemens 6ES7626-1DG03-0AE3 Unit

The Siemens 6ES7626-1DG03-0AE3 operates as a compact controller unit for SIMATIC PCS 7 process control systems. This integrated device combines CPU, I/O, and communication interfaces in a single housing. The unit manages distributed control tasks with reliable performance for process automation.

Technical Specifications

Parameter	Specification
Product Type	Compact controller unit
Compatibility	SIMATIC PCS 7, ET 200S
Program Memory	512 KB (integrated)
Data Memory	256 KB (integrated)
Digital Inputs	16 x 24V DC (sink/source)
Digital Outputs	8 x 24V DC / 0.5A (transistor)
Total I/O Points	24 I/O (16 IN / 8 OUT)
Communication Ports	1 x PROFIBUS DP, 1 x MPI
Processing Time (bit)	120 ns (typical)
Dimensions (W x H x D)	310 x 180 x 50 mm
Weight	1.2 kg
Internal Components	1 x CPU core, 1 x bus controller, 1 x power supply, 2 x UARTs
Load Memory (Flash)	1 MB (integrated)
Retentive Memory	16 KB (battery-backed)
Energy Storage	Battery (6 months, typical)
Power Supply	24V DC (20.4V – 28.8V)
Power Consumption	20W (typical)
Operating Temperature	0°C to +60°C
Storage Temperature	-40°C to +85°C
Protection Class	IP20
Mounting	DIN rail (35mm) or panel
Approvals	CE, UL, CSA, ATEX (Zone 2)

Integrated I/O for Distributed Control

The Siemens 6ES7626-1DG03-0AE3 includes 16 digital inputs and 8 digital outputs onboard. This integrated I/O suits distributed control applications in process automation. The 24V DC transistor outputs drive actuators and indicators directly. Users can expand the system with additional ET 200S modules as required.

High-Speed Processing for Process Control

The CPU executes bit operations in 120 ns for responsive process control. This speed handles complex regulatory loops and interlocking logic effectively. The processor manages both continuous and batch process applications. Users can implement time-critical functions with deterministic performance.

PROFIBUS DP Network Integration

The compact unit includes a PROFIBUS DP port for seamless network integration. This interface connects the controller to PCS 7 engineering stations and HMIs. The MPI port provides programming access and additional communication capabilities. Users can integrate the unit into existing Profibus installations without modifications.

Substantial Memory for Complex Applications

Program memory of 512 KB accommodates extensive process control logic. Data memory of 256 KB stores process variables and alarm parameters. Load memory of 1 MB holds firmware, configurations, and project archives. Retentive memory of 16 KB preserves critical values during power loss.

Rugged Mechanical Design for Industrial Environments

The unit measures 310 x 180 x 50 mm and weighs 1.2 kg for stable installation. The IP20-rated housing protects internal components from accidental contact. Users can mount the controller on DIN rails or directly to backplates. The robust construction withstands vibration and temperature extremes.

Reliable Battery-Backed Data Retention

A lithium battery provides up to 6 months of data retention without external power. This backup preserves retentive memory and real-time clock settings. Users can store critical process parameters with confidence. The battery monitoring system alerts users when replacement becomes necessary.