Reading Drive Data Via Link Variables - Siemens SINUMERIK 840D sl Function Manual

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
2.8 Link communication
Program code
$A_DLB[0]
$A_DLB[1]
$A_DLW[2]
$A_DLD[4]
$A_DLD[8]
$A_DLD[12]
$A_DLR[16]
See also
Reading drive data via link variables (Page 172)
2.8.2

Reading drive data via link variables

Task
A system contains 2 NCUs called NCU1 and NCU2. The two NCUs are connected via an
NCU link. Several machine axes are connected to NCU1. Of these, axis AX2 is traversed in
an interpolatory manner as a link axis of NCU2. The actual current value of axis AX2 is to be
transferred via link communication from NCU1 to NCU2 for evaluation purposes. The figure
below shows the basic design of the system.
172
Description
; BYTE(1)
; BYTE(2)
; WORD
; DWORD(1)
; DWORD(2)
; DWORD(3)
; REAL
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions