Siemens Simatic S7 Series System Manual

Programming concepts
5.6 Variable table
S7-200 SMART
108 System Manual, 09/2015, A5E03822230-AC
Deleting variables
To delete a local variable, select it in the variable table and click the Delete button .
Alternatively you can delete a row by right-clicking it and selecting
Delete > Row
from the
context menu.
Variable table example
The following example shows a typical variable table for SBR_0, and then a call to SBR_0
from another program block.
See also
Programming software (Page 23)

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.