Siemens SIMATIC S7-300 Module data User Manual

Priniples of analog value processing
4.4 Connecting current transducers
S7-300 Automation System Module data
4-8 Manual, 08/2006, A5E00105505-04
4.4 4.4 Connecting current transducers
Introduction
This chapter contains a description of wiring current transducers and points to which
particular attention must be paid.
Current transducers which can be wired up
● As 2-wire transducer
● As 4-wire transducer
Wire 2-wire transducer with supply via module
The 2-wire transducer is wired to a short circuit-proof supply voltage at the terminals of the
analog input module.
This transducer converts the measured variable into a current. 2-wire transducers must be
electrically isolated.
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Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)