Profichip VPC3+S - Page 85

PROFIBUS DP Extensions 7
VPC3+S User Manual
Revision 1.04
85
Copyright © profichip GmbH, 2012
VPC3+S
Firmware
set CS_Supported
reception of Set_(Ext_)Prm
set New_(Ext_)Prm_Data interrupt
acknowledge interrupt
write Clock_Sync_Interval to CS-Buffer
reception of Time_Event
start Receive_Delay_Timer
reception of Clock_Value
set Clock_Sync interrupt
stop Receive_Delay Timer
read CS_Status
IF (Set_Time=’1’) THEN
read CS_Buffer
update system time
END IF
acknowledge interrupt
Figure 7-30: communication scheme