SIMATIC S7-GRAPH is based on the STEP 7 programming software. It is used for describing procedures with alternative or parallel step sequences.
The process is described graphically, and divided into individual steps with an easily comprehensible scope of functions.
In addition to this basic functionality SIMATIC S7-GRAPH offers diagnostic
support:
Test and diagnostics functions
Online functions:
The online functions can result in considerable time savings,
particularly during the start-up phase. For example, it
is possible to display active steps, the status of the interlocking,
monitoring and step enabling conditions, as well
as past actions. Different diagnostic options are available in
principle:
Sequencers can be displayed in SIMATIC WinCC online.
The graphics for this are imported from S7-GRAPH
(S7-GRAPH Viewer).
For detailed diagnostic functions it is possible to jump
directly from SIMATIC WinCC to S7-GRAPH and the
respective active step. This function is limited to read
access only for safety reasons.
Process fault diagnostics:
S7-GRAPH enables targeted and quick diagnostics of
process faults (faults outside the automation system,
e.g. "limit switch not reached", "fill level exceeded"). The
operators and maintenance personnel are thus optimally
supported with locating and eliminating disturbances.
Downtimes are reduced, plant availability increases.
The diagnostics is integrated and does not require programming.
Additional diagnostics-relevant information,
such as message texts and message numbers, can be
stored during configuration. They are displayed like
sequencers by ProAgent during operation. ProAgent is
available as an option package to SIMATIC WinCC and
WinCC flexible.
Licensing
S7-GRAPH is part of the STEP 7 Professional Software package yet also available
separately. Customers that already use STEP 7 can change to STEP 7 Professional
by purchasing a POWERPACK. A valid STEP 7 license is needed for this upgrade.
Software Update Service is offered for the STEP 7 Professional package as well.