Siemens S7-300 appendix Analog outputs

			Technical data of CPU 31xC
			6.6 Technical data of the integrated I/O
Technical data
Connection of signal generators
•	For voltage measurement		Possible
•	For current measurement
	– as 2-wire measuring transducer		Possible, with external power supply
	– as 4-wire measuring transducer		Possible
•	for measuring resistance
	–	with 2-wire connection	Possible, without compensation of
	–	with 3-wire connection	cable resistance
			Not possible
	– with 4-wire connection		Not possible
Linearization of the characteristics trend			By software
•	For resistance thermometers		Pt 100
Temperature compensation			No
Technical unit for temperature measurement			Degrees Celsius/Fahrenheit/Kelvin

6.6.9Analog outputs

Introduction

This chapter contains the specifications for digital outputs of CPUs 31xC.

The table includes the following CPUs:

•CPU 313C

•CPU 314C-2 DP

•CPU 314C-2 PtP

Technical data

Table 6-15 Technical data of analog outputs

Technical data

Module-specific data

Number of outputs		2
Cable length
•	Shielded	Max. 200 m
Voltage, currents, potentials
Rated load voltage L+		24 VDC
•	Polarity reversal protection	Yes
Electrical isolation
• Between channels and the backplane bus		Yes
•	Between the channels	No

CPU 31xC and CPU 31x, Technical data	6-53
Manual, Edition 08/2004, A5E00105475-05