Computer Drive Installation Instructions

10.94 12 Functional Descriptions

12.28 High-speed data channels

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

DB 2

NC PLC link RAM

Fixed area for configuration of DB 3

Reserved

DB 3

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)

e.g. 100

e.g. 110

611D

PLC

12–281

SINUMERIK 840C (IA)