Siemens S7-300 manual Welcome, In addition, you will need the following components, Order number

1 Welcome

Note

You can also use the

CPU 312C with an extra-low voltage that is safely isolated from the supply system. Safe isolation can be achieved, for example, in accordance with VDE 0100 Part 410 / HD 384- 4-41 / IEC 364-4-41 or

VDE 0805 / EN 60950 / IEC 950 or VDE 0106 Part 101.

6

• In addition, you will need the following components:

		Order number
Quantity	Item	(Siemens)
1	Power supply	6ES7307-1EA00-0AA0
1	PC with USB interface	-
1	STEP 7 Lite V3.0 + Service Pack 2	Can be downloaded free
		of charge on the Internet
various	M6 screws and nuts (length depends on installa-	Commercially available
	tion location) with suitable screwdriver/wrench
1	Screwdrivers with 3.5 mm and 4.5 mm blade	Commercially available
	widths
1	Diagonal cutters and wire stripping tool	Commercially available
1	Crimp tool	Commercially available
X m	Cable with 10 mm2 cross-section for grounding	Commercially available
	the mounting rail and suitable cable lug for M6
	screw. Length of cable depends on local condi-
	tions
Approxi-	Flexible cable with 1 mm2 cross-section and	Commercially available
mately 2 m	suitable ferrules with insulated collar, length
	6 mm
X m	3-wire flexible network cable (230/120 VAC) with	Commercially available
	grounding-type socket plug; length dependent
	on local conditions and suitable ferrules with
	insulating collar
4	Single-pole momentary contact switch	Commercially available
	(24 V, 2 A)
1	Motor, including accessories (optional)	Commercially available
	You can find technical specifications for the

CPU 312C in the “CPU 31xC and CPU 31x: Technical Specifications” Manual available on the Internet at http://www.siemens.com/automa- tion/service&support.

SIMATIC S7-300 Getting Started for First Time Users Getting Started, 04/2007, 6ZB5310-0NC02-0BA0