SIMATIC S7-1200PLC

Compact controller with integrated I/O, signal boards and up to eight signal modules; PROFINET port on every CPU, web server, Modbus TCP/RTU instructions and, on current firmware, an OPC UA server. Programmed in STEP 7 (TIA Portal); the newer S7-1200 G2 generation has its own manuals.

Manufacturer
Siemens
Product line
SIMATIC
Device type
PLC
Models / series
CPU 1211C, CPU 1212C, CPU 1214C, CPU 1215C, CPU 1217C, CPU 1212FC/1214FC/1215FC, S7-1200 G2

Documentation · 8

S7-1200 G2 programmable controller — System Manual

A5E52923928 · Revision AB · 2025-04 · EN

System manual

Second-generation S7-1200 CPUs: installation and wiring, configuration in TIA Portal, program execution, communication, technology functions and technical data.

Official title
SIMATIC S7-1200 G2 Programmable controller — System Manual
Models
S7-1200 G2

Link verified 2026-10-01

S7-1200 Programmable controller (V4.7)

A5E02486680-AQ · 2024-12 · EN

System manual

Complete S7-1200 system manual: installation, PLC concepts, instructions, PROFINET/PROFIBUS/Modbus/AS-i communication, web server, technology objects, diagnostics and technical data.

Official title
S7-1200 Programmable controller (V4.7)
Models
CPU 1211C, CPU 1212C, CPU 1214C, CPU 1215C, CPU 1217C
Siemens Industry Online Support entry 109977302, edition 12/2024.
Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

PROFINET with STEP 7

A5E03444486-AQ · 2025-11 · EN

Function manual

Configuring PROFINET IO in TIA Portal: device names and addresses, topology, IRT, MRP, shared device, I-device, diagnostics.

Official title
PROFINET with STEP 7
Siemens Industry Online Support entry 49948856, edition 11/2025.
Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

SIMATIC S7-1500, S7-1200 Trace and logic analyzer function

A5E31277292-AL · 2025-11 · EN

Function manual

Recording tag values in the CPU with triggers, displaying and evaluating traces in TIA Portal and the web server.

Official title
SIMATIC S7-1500, S7-1200 Trace and logic analyzer function
Siemens Industry Online Support entry 64897128, edition 11/2025.
Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

S7-1500/S7-1200 G2/ET 200 web server

A5E53797648-AB · 2025-11 · EN

Function manual

Web server of the CPUs: standard pages (diagnostics, tags, trace), user-defined pages, Web API and security settings.

Official title
S7-1500/S7-1200 G2/ET 200 web server
Siemens Industry Online Support entry 109977246, edition 11/2025.
Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

Programming Guideline for S7-1200/S7-1500

2018-12 · EN

Programming manual

Recommendations for efficient STEP 7 programs: optimized blocks, data types, libraries, symbolic addressing and performance.

Official title
Programming Guideline for S7-1200/S7-1500
Siemens Industry Online Support entry 90885040, edition 12/2018.
Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

Programming Styleguide for S7-1200 / S7-1500

2025-04 · EN

Programming manual

Naming conventions, program structure and code style rules for maintainable TIA Portal projects.

Official title
Programming Styleguide for S7-1200 / S7-1500
Siemens Industry Online Support entry 109478084, edition 04/2025.
Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

PLC Connection Guide — Siemens S7-1200/S7-1500 (absolute addressing, Ethernet)

EN

Communication manual

HMI settings (port 102, rack 0, slot 1), supported series and device address ranges for S7-300/1200/1500 and ET 200SP.

Official title
PLC Connection Guide — Siemens S7-1200/S7-1500 (absolute addressing, Ethernet)

Link verified 2026-10-04

Diagnostics · 0

No reviewed diagnostic records for this family yet.

Knowledge · 2

Related tools · 25

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