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
125
Table 6- 1 S7-200 SMART CPU password-protected privilege levels
Description of operation
Full privileg-
es (Level 1)
Read privi-
leges (Level
2)
Minimum
privileges
(Level 3)
Disallow
upload
(Level 4)
Read and write user data
Permitted
Permitted
Permitted
Permitted
Start, stop, and power-up reset of the
CPU
Permitted Restricted Restricted Restricted
Read the time-of-day clock
Permitted
Permitted
Permitted
Permitted
Write the time-of-day clock
Permitted
Restricted
Restricted
Restricted
Upload the user program, data, and the
CPU configuration
Permitted Permitted Restricted Never Per-
mitted
Download of program block, data block,
or system block
Permitted Restricted Restricted Restricted
Note: Never
permitted for
the system
block if the
user pro-
gram block
is present.
Reset to factory defaults
Permitted
Restricted
Restricted
Restricted
Delete of program block, data block, or
system block
Permitted Restricted Restricted Restricted
Note: Never
permitted for
the system
block if the
user pro-
gram block
is present.
Copy of program block, data block, or
system data block to a memory card
Permitted Restricted Restricted Restricted
Forcing of data in status chart
Permitted
Restricted
Restricted
Restricted
Execute single or multiple scan opera-
tions.
Permitted Restricted Restricted Restricted
Writing of output in STOP mode.
Permitted
Restricted
Restricted
Restricted
Reset of scan rates in PLC information
Permitted
Restricted
Restricted
Restricted
Program status Permitted Permitted Restricted Never Per-
mitted
Project compare Permitted Permitted Restricted Never Per-
mitted

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.