The
course has been designed
further student knowledge
of communications and
programming, and will
build on the system knowledge
of the S7 plc, Touch panel
HMI, drives and profibus
gained used on the Programming
and Maintenance courses
2.
The
student will be able to
communicate between PLC’s
and program to a very
high level.
Objectives
To
introduce students to
the concepts and operation
of S7 programmable controllers,
including the following
areas:
•
MPI communications.
•
Ethernet communication
•
Multi block calls
•
Complex data type
and UDT’s
•
OB121 and OB122.
•
MPI and Profibus communications
Course
Content
•
Review of FB
and FC block structure.
• Multi
instance block model, with
FB14 parameter description
and passing of data.
• Complex
data types including:-
•
Arrays, strings, date_time
•
Using STRUCT •
Using User defined types
UDT’s •
Indirect addressing using
memory pointers •
Errors using OB121 and OB122.
• Ethernet communication
between S7 PLC’s and
SCADA/HMI.
