High-Speed Data Channels; Corresponding Data; Functional Description - Siemens SINUMERIK 840C Installation Instructions Manual

10.94
12.28

High-speed data channels

The "High-speed data channels" function
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.
NC PLC link RAM
DB 2
NC
DB 3
611D
e.g. 100
e.g. 110
Functional structure of high-speed data channels
© Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
is an option (SW 4 and higher).
Fixed area for configuration of DB 3
Reserved
Fixed area for activation bits/status bits
Fixed area for maximum of 32 pointers to data
transfer areas
.
.
.
DW 100 1st data transfer area (high-speed channel)
DW 110 2nd data transfer area (high-speed channel)
6FC5197- AA50
12 Functional Descriptions
12.28 High-speed data channels
PLC
12–281