Operation Instructions
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5 Operation Instructions
5.1 Power-on
5.1.1 Power-on Safety Precautions
After power-on, it takes about 15s to 25s or 70s to 80s for the PLC to enter the operating mode. During
this period, the output remains OFF or at a value corresponding to module/slave settings, and the
controller cannot communicate with external devices. To avoid malfunction of external devices,
construct a fail-safe circuit using the operating output of the power supply unit.
5.1.2 PLC Startup
The PLC becomes operable after the following time since power-on.
Before the PLC enters the operating state, the RUN LED indicator is off.
● If the programming port (enp1s0) is set to a static IP address, it takes about 15 to 25 seconds for the
PLC to enter the operating mode.
● If the programming port (enp1s0) is set to a DHCP-assigned address, but no DHCP server or network
connection is available, it takes about 70 to 80 seconds for the PLC to enter the operating mode.
Note
● Some EtherCAT slaves allow you to set the maximum waiting time (1s to 200s), but the PLC only becomes
operable when the EtherCAT master function module starts operation, regardless of the waiting time.
● If a slave has not been activated within the maximum waiting time, the EtherCAT master function module
determines that the slave encounters an error.
5.1.3 PLC Operations
If there is an app when the PLC becomes operable, the PLC enters the operating state immediately
based on the default setting. You can also change the default setting to enable the PLC to enter the
stop state instead.
If the operation mode of the user program (app) is "NO-APP" when the power is on, the PLC enters the
stop state.
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