Siemens SIMATIC S7-300 Module data Reference Manual

Analog Modules
4-52
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Connecting 2-wire transmitters
M+
M
L+
M–
M
ANA
M+
M–
ADC
Two-wire
transmitter
Two-wire
transmitter
P
P
+
–
+
–
Sensor,
for example,
pressure gauge
Backplane
bus
Logic
Figure 4-12 Connecting two-wire transmitters to an isolated AI
When the supply voltage L+ is fed from the module, you must assign parameters
to the two-wire transmitter as a four-wire transmitter in STEP 7.
M
L+
M
ANA
M+
M–
ADC
2-wire
trans
mitter
–
Backplane
bus
+
P
Sensor,
for example,
pressure gauge
Logic
Figure 4-13 Connecting two-wire transmitters supplied from L+ to an
isolated AI
Connecting four-wire transmitters
M+
M
L+
M–
M
ANA
M+
M–
ADC
P
P
Sensor,
for example,
pressure gauge
transmitter Four-wire
+
–
+
–
L+
M
Backplane
bus
Logic
Figure 4-14 Connecting four-wire transmitters to an isolated AI

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)