Siemens SIMATIC S7-300 Module data Reference Manual

Digital Modules
3-91
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Behavior and Diagnostics of the SM 322; DO 8 x 120/230 VAC/2 A ISOL
Table 3-23 gives an overview of the diagnostic messages of the
SM 322; DO 8 x 120/230 VAC/2 A ISOL.
Table 3-23 Diagnostic Messages of the SM 322; DO 8 x 120/230 VAC/2 A ISOL
Diagnostics Message
LED Scope of the diagnostics Parameters can be
assigned
Time-out SF Module No
EPROM error SF Module No
RAM error SF Module No
Error causes and remedies
Table 3-24 shows the diagnostic messages and error causes as well as the
remedies of the SM 322; DO 8 x 120/230 VAC/2 A ISOL.
Table 3-24 Diagnostic messages of the SM 322; DO 8 x 120/230 VAC/2 A ISOL,
error causes and remedies
Diagnostics
message
Error detection Possible error cause Remedy
Time-out Always Transient high
electromagnetic
interference
Remove interference and turn
the CPU power supply off and
on
Module defective Replace module
EPROM error Always Transient high
electromagnetic
interference
Remove interference and turn
the CPU power supply off and
on
Module defective Replace module
RAM error Always Transient high
electromagnetic
interference
Remove interference and turn
the CPU power supply off and
on
Module defective Replace module

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)