2
Design, Functions and Operation
2.1
Basic System Design - without External I/Os
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2 - 1
2.2
Basic System Design - with External I/Os
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2 - 2
2.3
Internal Functions
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2 - 4
2.3.1
Integral Real-Time Clock
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2 - 4
2.3.2
Diagnostic Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 - 4
2.3.3
Communication Byte
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2 - 4
2.4
The Programmable Controllers' Principle of Operation
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2 - 5
2.4.1
Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 - 5
2.4.2
Mode of Operation of the External I/O Bus
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2 - 8
2.5
Operating Instructions
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2 - 11
2.5.1
Displays and Controls
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2 - 11
2.5.2
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 - 13
2.5.3
Operating Statuses of the S5-95F Following Power-Up
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2 - 17
2.5.4
Performing an Overall Reset on the S5-95F
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2 - 18
2.5.5
Function of the Backup Battery
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2 - 19
2.5.6
Memory Submodules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 - 20
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EWA 4NEB 812 6210-02