Siemens SIMATIC S7-300 Module data Reference Manual

Analog Modules
4-74
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Table 4-48 Diagnostics Messages of the Analog Input Modules, Causes of Errors and
Remedial Measures
Diagnostics
Message
RemedyPossible Error Cause
Underflow Input value underflows underrange,
error may be caused:
Wrong measuring range selected
Configure other measuring range
With the measuring ranges 4 to
20 mA and 1 to 5 V, if necessary by
polarity reversal of sensor
connection
Check terminals
Overflow Input value overflows overrange Configure other measuring range
Causes of errors and remedial measures for analog output modules
Table 4-49 Diagnostics Messages of the Analog Output Modules, Causes of Errors and
Remedial Measures
Diagnostics
Message
Possible Error Cause Remedy
External load voltage
missing
Load voltage L+ of module
missing
Feed supply L+
Configuring/parameter
assignment error
Illegal parameters transferred to
module
Reassign module parameter
Short-circuit after M Overload of output Eliminate overload
Short-circuit of output Q
V
after
M
ANA
Eliminate short circuit
Wire-break Actuator resistance too high Use different type of actuator or connection,
e.g. use conductors with a larger
cross-sectional core area
Open circuit between module
and actuator
Close circuit
Channel not used (open) Disable channel group (”output type”
parameter)

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)