Siemens SIMATIC S7-300 Module data Reference Manual

Special Signal modules
5-6
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Module view
Front View
NA
A
Rear view
Switch for address
assignment
Figure 5-2 Module view of the dummy module DM 370
Switch settings for address assignment
The following table shows how to set the switch on the rear side of the module
according to the module type.
Table 5-2 Meaning of the switch settings of the dummy module DM 370
Switch setting
Meaning Use
A
NA
The dummy module reserves one
slot.
The module is not configured and
does not occupy any address
space.
• Without active backplane bus:
In configurations for which a purely
physical single slot should be reserved,
with electrical connection to the S7 300
bus.
• With active backplane bus: No
A
NA
The dummy module reserves one
slot.
The module must be configured
and occupies 1 byte input address
space (with system default outside
the process image).
In configurations for which a slot with an
address should be reserved.

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)