Siemens Simatic S7 Series System Manual

PLC device configuration
6.1 Configuring the operation of the PLC system
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
129
Hardware options
You can also configure the CPU to allow RUN mode operation under the following hardware
conditions:
● One or more devices specified in the hardware configuration stored in the CPU are
missing.
● A difference exists between the hardware configuration stored in the CPU and the
devices actually present, resulting in configuration errors (for example, discrete input
module in place of a configured discrete output module).
If you deselect one or both of the selections, the CPU is prohibited from entering RUN mode
if any of the disallowed conditions are true.
6.1.8
Configuring the analog inputs
Click the Analog Inputs node of the system block (Page 115) dialog to configure options for
an analog input module that you have selected in the top section.
Analog type configuration
For each analog input channel, you configure the type to be either voltage or current. The
type selected for the even-numbered channels also applies to the odd-numbered channels:
the type selection for Channel 0 also applies to Channel 1, and the type selection for
Channel 2 also applies to Channel 3.

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.