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Startup Time Section 3-1
3-1 Startup Time
This section describes the operating flow and startup time of the G9SP-series
Controller.
Operation Flow
The following flowchart shows the operation cycle of the G9SP-series Control-
ler.
Initialization Time
The G9SP-series Controller performs initialization when the power supply is
turned ON. During initialization, the G9SP-series Controller performs hard-
ware self-diagnosis. The initialization takes up to 3 seconds to be completed
from the time that the power is turned ON.
Time Required to RUN Mode
The G9SP-series Controller will start operation in RUN Mode within 3 sec-
onds after the power supply is turned ON when operation starts automatically.
A Standard PLC can monitor the Unit Normal Operating Flag to see if the
G9SP-series Controller has started normal operation. The G9SP-series Con-
troller turns ON the Unit Normal Operating Flag when the following conditions
have been met.
• RUN Mode has been entered.
• There are no errors in the G9SP-series Controller.
Power ON
Initialization
System processing
Input refresh
User application processing
(logic operations)
Output refresh
USB/Option Board
communications processing
Cycle time
(depends on
program)
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