01.93
14 Command Channel (DB 41)
14.3 User interface signals
Signal chart for initiating a command channel function
(a)
Time axis
(a)
By user; the request bit must not be set until all other entries are valid.
Request bit in command
channel head
User data entry in source
DB
State address of user data
DB in user interface
Enter function number in
user interface
t
(a)
(a)
(a)
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HE02
14–5
SINUMERIK 880 (PJ)