Nc Channel/Plc Interface (Db 10; Introduction To Channel Structure - Siemens SINUMERIK 880 SW 6 Planning Manual

01.93
6 NC Channel/PLC Interface (DB 10 ... DB 25)
6.1

Introduction to channel structure

Simultaneous working with several tools and the integration of loaders in the machine tool
increase the number of numerically controlled axes many times compared with conventional
standard machines. The SINUMERIK 880 can thus be expanded to comprise 30 measuring
cycles for allocation to axes, work spindles and/or auxiliary axes as required. The maximum
number of work spindles is restricted to six.
In accordance with the machine configuration, the NC axes of the tool slides, the work
spindles and the loader are amalgamated in the form of axis groups. Each axis group is
allocated an independent interpolator with associated program processing, called a channel.
The SINUMERIK 880 may have up to 16 autonomous channels (see figure below).
On GA2, software version 1 and higher, you can only select up to eight channels out of 16.
Operator panel
Display/
program
editor
NC
data
Block
preparation
1
IPO 1
NC Position
controller 1
Functional structure SINUMERIK 880
©
Siemens AG 1991 All Rights Reserved
SINUMERIK 880 (PJ)
6 NC Channel/PLC Interface (DB 10 ... DB 25)
Programming workstation
PG 685
SINEC H1
Data
Displays
input/output
Texts
Menus
Part
program
Block
preparation
16
IPO 16
Position
controller 30
6ZB5 410-0HE02
6.1 Introduction to channel structure
COM
Magazine
data
Tool
T . . .
management
M . . .
Machine
control
Auxiliary axes
Input/output
PLC
–
6 1