Configuration Of A Link Grouping - Siemens SINUMERIK 840D sl Function Manual

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl

2.9 Configuration of a link grouping

2.9 Configuration of a link grouping
2.9
Introduction
The preceding sections described how to configure link axes and axis containers. Both
require a link communication to be established between the NCUs concerned. Setting up the
link communication takes place by means of:
● The link module hardware
● References: /PHD/ SINUMERIK 840D Configuration Manual
● Machine data
The following section describes how to use the required machine data.
Figure 2-25
Link grouping
A link grouping consists of a minimum of 2 and maximum of 16 NCUs interconnected by link
modules.
● Link module master
● The first and last module in the physical chain must activate the bus terminating resistors.
● The software version must be identical on all NCUs in a link grouping.
174
Link grouping
(MD12510 $MN_NCU_LINKNO = 1)
plays a leading role in this process. It synchronizes the interpolation cycle and sets up
slave communication on power up. It is advisable to assign the NCU numbers in
continuous ascending order for the slave modules.
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions