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| Introduction to PLC's |
Duration 3 days |
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| Development of Programmable Controllers |
Relay systems.
The electronic interface: Address, Data and Control lines.
Programmable Logic Controller elements.
Power supply requirements.
PLC requirements.
PLC specifications. |
| Introduction to DOS, PCP/M and BIOS |
Review of hardware (RAM, ROM, hard disk, floppy disk etc.)
Review of binary, hexadecimal, binary coded decimal, floating point etc. |
| Overview of Siemens programming units. |
| The S5 programming language |
Linear and structured programming.
Logic display formats.
Boolean logic (AND, OR etc.)
Basic software including contacts, coils, flip-flops, comparators, timers and counters. |
| Load and Transfer functions |
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| The exact content and timing may be varied by the instructor to more closely meet the requirements of the course delegates |
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| All topics are reinforced with practical exercises throughout the course. |
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| S5 to S7 Upgrade |
Duration 3 days |
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| Comparison of the common elements in S5 and S7 including |
Logic elements, and, or, flipflops, set, reset and rlo.
Timers, counters and comparators.
Process images PII and PIQ. |
| New S7 elements including |
Relay systems
Positive and negative edge triggers.
Double integer and real comparators.
Data blocks.
Use defined data tables.
Function calls and function blocks.
Organisation blocks.
Conversion blocks.
Maths functions. |
| Configuration |
Customising S7 to your requirements.
S7 300 and S7 400 hardware.
Creating an S7 project.
Configuring S7 hardware including PSU, CPU, digital I/O and analogue.
Configuring remote I/O with profibus. |
| Testing and Diagnostics |
Testing digital and analogue modules for correct operation.
Testing profibus slaves and remote I/O.
Using the Diagnostic Buffer to locate faults.
Creating customised VAT tables.
Forcing inputs and outputs. |
| Maintenance |
Module replacement.
Fault location using Monitor/Modify.
Cross reference and compare.
Deletion of the CPU.
Uploading and downloading programs.
Archiving and retrieving programs.
Editing and printing symbol tables.
Modifying programs. |
| Communication |
MPI network.
Profibus DP network.
Connection between programming unit and CPU. |
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| All topics are reinforced with practical exercises throughout the course. |
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