Siemens SIMATIC S7-300 Module data Reference Manual

Analog Modules
4-91
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Channel groups
The channels of the SM 331; AI 8 x16 bits are arranged in groups of two inputs
each. You must assign the same parameters to both the inputs in a group. The
interrupt limits are the exception here.
Table 4-55 shows which channels of the isolated analog input module SM 331;
AI 8 x 16 bits are configured as a channel group. To set the parameters by means
of SFC in the user program, you need the numbers of the channel groups. Detailed
information on this can be found in Appendix A.
Table 4-55 Assignment of the channels of the isolated analog input module SM 331;
AI 8 x 16 bits to channel groups
Channels ...
... form one channel group each
Channel 0
Channel group 0
Channel 1
Channel group 0
Channel 2
Channel group 1
Channel 3
Channel group 1
Channel 4
Channel group 2
Channel 5
Channel group 2
Channel 6
Channel group 3
Channel 7
Channel group 3
Operating states
The following modes are available for the isolated analog input module SM 331;
AI 8 x 16 bits:
• 8 channels
• 4 channels

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)