STEP 7 Lite

STEP 7

STEP 7 Professional

Configuration

Target systems

S7-300/C7

S7-300/S7-400/C7/WinAC

Modules

digital, analog I/O, IFM only centrally

digital, analog I/O, IFM, FM, CP centralized and distributed (DP)

Networking/communication

No

Time-controlled, cyclic data transmission between automation components;
MPI, PROFIBUS or Industrial Ethernet

Distributed I/O

No

Yes

Signal configuration (display via HMI)

No

Yes

Write to / read from MMC

Yes, only in CPU

Yes, in CPU and directly onto PG/PC
(update of the AS operating system possible)

Export/Import

Program, symbols

Program, symbols, hardware configuration

Documentation settings

included

Included;
DOCPRO option for standard-compliant documentation of the S7 project

Document projects in multiple languages

Yes

Yes

Multi-user engineering

No

Yes

Programming

Languages

LAD/FBD/STL

LAD/FBD/STL
and STL source

as STEP 7
additionally S7-GRAPH (step sequence) /S7-SCL (textual high-level language)

Structured/symbolic programming

Yes/Yes

Yes/Yes

Check/establish prog. consistency

Yes/Yes

Yes/Yes

Standard/user libraries

Yes/No

Yes/Yes

Online functions

Online access

MPI

MPI, PROFIBUS, option: Industrial Ethernet

Test functions

Monitor, control, force

Monitor, control, force, single step (debug)

Comparison function off/online

Program, hardware configuration

Program

Diagnostics

System diagnostics

System diagnostics, system error reporting, integrated process error diagnostics for S7-GRAPH

Option packages

Optional programming languages

None

S7-GRAPH, S7-SCL, CFC

CFC

Options for simulation, documentation, diagnostics, and remote maintenance

S7-PLCSIM, S7-Teleservice

S7-PLCSIM, S7-DOCPRO, TeleService, S7-PDiag

DOCPRO, TeleService, S7-PDiag
(S7-PLCSIM is included in the scope of supply)