Siemens SIMATIC S7-300 CPU 312 6ES7312-5AC02-0AB0

Series#: Siemens

Product Details

Model: SIEMENS SIMATIC S7-300 CPU 312 6ES7312-5AC02-0AB0 – Compact mid-range PLC for demanding automation tasks.
Integrated PROFIBUS DP master/slave interface for high-speed fieldbus communication.
64 KB working memory and support for up to 8 MB load memory via MMC.
Fast processing: bit operations in 0.1 µs, floating-point in 1.1 µs.
Unlimited S7 counters and timers, plus 1024 data blocks for scalable control.
Programmable with STEP 7 V5.5+ for seamless integration into existing S7-300 systems.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The SIEMENS SIMATIC S7-300 CPU 312 6ES7312-5AC02-0AB0 is a proven mid-range PLC designed for reliable and flexible control in industrial environments. With its integrated PROFIBUS DP interface, 64 KB of working memory, and support for up to 8 MB of load memory via a MultiMediaCard, this CPU delivers robust performance for applications in chemical, electronics, electrical, and other automation sectors. Its fast processing speeds—0.1 µs for bit operations and 1.1 µs for floating-point arithmetic—ensure responsive control loops. The CPU supports modular programming with up to 1024 data blocks, function blocks, and functions, as well as unlimited retentive counters and timers. It is engineered for 24 V DC operation and can be programmed using STEP 7 V5.5 or higher, making it an ideal choice for system expansions or new installations requiring high reliability and fieldbus connectivity.

Specification	Details
Product Model	6ES7312-5AC02-0AB0
Series	SIMATIC S7-300
CPU Type	CPU 312
Integrated Interfaces	MPI (Multi-Point Interface) + PROFIBUS DP master/slave
Power Supply	24 V DC (range: 20.4 V to 28.8 V)
Working Memory	64 KB
Load Memory	Up to 8 MB (via MMC card)
Retentive Memory	32 KB
Bit Operation Time	0.1 µs
Word Operation Time	0.24 µs
Fixed-Point Arithmetic Time	0.32 µs
Floating-Point Arithmetic Time	1.1 µs
Max. Data Blocks (DBs)	1024 (max. 32 KB each)
Max. Function Blocks (FBs) / Functions (FCs)	1024 each (max. 32 KB each)
Organization Blocks (OBs)	OB1, OB10, OB35, OB80-series, etc.
S7 Counters	Unlimited (RAM-based, retentive)
S7 Timers	Unlimited (RAM-based, retentive)
Programming Software	STEP 7 V5.5 + SP1 or higher
Operating Temperature	0 °C to 60 °C (typical)
Protection Class	IP20 (typical for S7-300 modules)
Application Areas	Chemical, electronics, electrical, general automation