C
RUN Position
Update PLC mode from software
Hold Mode
HOLD
Clear non retentive PLC registers.
Initialize digital filter constant to
Reset Power On system bit to '0'
Main Loop Start
Start counting Main Loop
Scan Time
Self Diagnosis
OK
Read
RUN/STOP
Switch
Mode
check
If power On System
bit is '1'
Scan Local and
expansion inputs
Turn On RUN Led
Execute Power-On Tasks.
Execute Power-Up ladder.
Enable User Timer Interrupt.
default 10 mSec.
B
Error Down
STOP Position
Halt Mode
RUN Mode or Switch position
change from Stop to RUN
Yes
Page 20
ERROR MODE
HALT MODE
HALT MODE
No
D