10.94 12 Functional Descriptions
12.28 High-speed data channels
12.28 High-speed data channels
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The "High-speed data channels" function
is an option (SW 4 and higher).
12.28.1 Corresponding data
• Option 6FC5 150-0AS40-0AA0
• Data block DB2 (configuring DB)
• Data block DB 3 (data transmission areas)
12.28.2 Functional description
With the "High-speed data channels" function, signals from SIMODRIVE 611D SERVO digital
drives as well as signals from an NCK I/O module are exchanged cyclically with the PLC user
program.
With SW versions up to and including SW 3, analog values are read in via analog modules in
the PLC area.
Functional structure of high-speed data channels
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DB 2
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NC PLC link RAM
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Fixed area for configuration of DB 3
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Reserved
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DB 3
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Fixed area for activation bits/status bits
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Fixed area for maximum of 32 pointers to data
transfer areas
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DW 100
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1st data transfer area (high-speed channel)
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DW 110
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2nd data transfer area (high-speed channel)
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e.g. 100
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e.g. 110
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611D
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PLC
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© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
12–281
SINUMERIK 840C (IA)
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