MX2N series HMI PLC all in one programming manual
1.3.3 Interface and Indicators description
POWER：Power indicator, light on when connected to power
RUN：PLC operating status indicator, the lamp is on when PLC is running
COM：Touch screen and PLC communication status indicator, light on when
communicated
Power terminal: The positive and negative poles of the DC24V switching power
supply are connected to the DC24V and 0V power terminals.
PLC programming port: download by 232 programming line
HMI programming port: Download touch screen configuration program
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