This document is an introduction to Siemens ST 70·2005 products. It includes the features and characteristics of products such as S7-300/S7-300F central processing units, digital modules, analog modules, and functional modules.
The catalog introduces the SIMATIC S7-300 and S7-300F series of programmable logic controllers, covering CPUs, signal modules (SM), function modules (FM), communication modules (CP) and related accessories. It lists environmental limits, power requirements and module options for the product line.
Technical data such as operating temperature, power supply voltage, memory sizes and current ratings are given for each CPU type, along with DIN‑rail dimensions and labeling sheet information for system integration.
| Operating temperature range | -25 °C to 70 °C |
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The S7-300 PLC operates from –25 °C up to 70 °C.