Siemens SIMATIC S7-300 Module data User Manual

Analog modules
6.8 Analog input module SM 331; AI 2 x 12 bit; (6ES7331-7KB02-0AB0)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
6-61
6.8 6.8 Analog input module SM 331; AI 2 x 12 bit; (6ES7331-7KB02-0AB0)
Order number: : "Standard module"
6ES7331-7KB02-0AB0
Order number: "SIPLUS S7-300 module"
6AG1331-7KB02-2AB0
Properties
● Two inputs in one channel group
● Measuring method adjustable per channel group
– Voltage
– Current
– Resistance
– Temperature
● Resolution adjustable per channel group (9/12/14 bits + sign)
● Measuring range selection any, per channel group
● Programmable diagnostics and diagnostic interrupt
● Limit value monitoring adjustable for 2 channels
● Hardware interrupt can be set with limit alarm
● Electrically isolated to CPU and load voltage (not for 2-wire transducers)
Resolution
The measured value resolution is directly proportional to the selected integration time, i.e.
the measured value resolution increases in proportion to the increase in the length of the
integration time at the analog input channel (see Technical data.)
Diagnostics
For information on diagnostics message consolidated at the "group diagnostics" parameter,
refer to the table
Diagnostics messages of analog input modules .
Hardware interrupts
You can set a hardware interrupt for the channel group in STEP 7 . However, you always
have to set the hardware interrupt at channel 0.

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)