User Manual

LOGO! installation and wiring
2.4 Putting into operation
LOGO!
Manual, 06/2014, A5E33039675
49
Connecting
You connect the FE terminal to earth ground, and connect a network cable to the Ethernet
interface.
①
②
③
Earth ground
Ethernet cable, for connecting to the Ethernet interface
Ethernet status LED
Ethernet status LED
LED type
Color
Description
Status LED
Flashing orange
LOGO! is receiving/sending data across Ethernet.
Steady green
LOGO! is already connected to Ethernet.
2.4
Putting into operation
2.4.1
Powering on LOGO!
LOGO! does not have a power switch. The reaction of LOGO! during startup depends on the
following:
● Whether a circuit program is stored in LOGO!
● Whether a micro SD card is inserted
● Whether this is a LOGO! version without display unit (LOGO!...o)
● Whether LOGO! is in RUN mode or STOP mode at the time of power failure
To ensure that the expansion module on LOGO! changes to RUN mode, check the following:
● Has the sliding contact between LOGO! and the expansion module snapped into place
properly?
● Is the power supply connected to the expansion module?
● In addition, always ensure that you switch on the power supply to the expansion module
first before activating the power supply to the LOGO! Base Module (or activate both
power supplies at the same time); if you do not do this, the system does not detect the
expansion module when you start up the LOGO! Base Module.