Technical data

The following identifiers are possible as the reply to a "
read time
" job of the
PLC.
Reply Identifier Meaning
System error 0E
H
System error (e.g. with invalid
command).
Hardware clock 0F
H
Hardware clock has failed.
Clock_Master 06
H
CP is clock master and
executes this function.
Clock_Slave 07
H
CP is clock slave.
Clock_Slave, + invalid 08
H
Station has an invalid clock
chip, clock must be reset.
Clock_Slave, + asynchronous 09
H
Station not receiving clock
frame.
Slave, >master
Master,>slave
0B
H
0A
H
CP is clock slave; prepare for
master function.
CP is clock master; prepare for
slave function.
Subst synchron 0C
H
CP is synchronized by a CP
5430 TF/CP 5431 FMS.
Clock Services C8976060/02
Volume 1 13 - 12