Omron 3G8F7-CRM21 User Manual page 64

Access to I/O Data
4-1-3 Access to I/O Data (with Initial OUT Data-Value Setting Function)
44
When the communications cycle is started without making any initial setting
for the OUT data, it keeps sending 0 data until the OUT write function is
executed.
Take these steps to set the initial value as the OUT data and to start the
communications data from the user application.
(Open Board)
CPNT_Open
(Write Initial values of OUT
data)
CPNT_SetOutData
CPNT_SetBitOutData
(Start communications cycles)
CPNT_StartCycle
Loop Start
(Read Basic status group)
CPNT_GetStatus
An error on the basic
status group?
(Write OUT data)
CPNT_SetOutData
CPNT_SetBitOutData
(Read IN data)
CPNT_GetInData
CPNT_GetBitInData
Loop End
(Stop communications cycles)
CPNT_StopCycle
(Close Board)
CPNT_Close
YES
Error solving
NO
Section 4-1