Siemens Simatic S7 Series System Manual

PLC device configuration
6.1 Configuring the operation of the PLC system
S7-200 SMART
130 System Manual, 09/2015, A5E03822230-AC
Range
You then configure either the voltage range or the current range for the channel. You can
choose one of the following value ranges:
● +/- 2.5v
● +/- 5v
● +/- 10v
● 0 - 20ma
Rejection
Fluctuations in analog input values can also be caused by the response time of the sensor,
or the length and condition of the wires carrying the analog signal to the module. In such
cases, the fluctuating values could be changing too rapidly for the program logic to respond
effectively. You can configure the module to reject signals to eliminate or minimize noise at
the following frequencies:
● 10 Hz
● 50 Hz
● 60 Hz
● 400 Hz
Smoothing
You can also configure the module to smooth the analog input signal over a configured
number of cycles, thus presenting an averaged value to the program logic. You have four
choices for the smoothing algorithm:
● None (no smoothing)
● Weak
● Medium
● Strong

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.