24
Installation and operation manual
–
DTH-V9-2020
12
Serial line
port 1
Type RJ45 (RS-232 or RS-485) - Used for HMI communication
13
Serial line
port 2
Screw terminal block type (RS-485)
14
Input
terminals
Digital inputs
15
TM3/TM2
bus
connector
For TM3 expansion modules
16
Protective cover
Cover for SD card, Run/Stop switch and USB mini-B programming port.
17
Locking hook
Hook not included
PLC status LEDs description:
#1 System status LEDs
Label
Function
Color
Description
PWR
Power
Green
On:
Power is applied
RUN
Machine status
Green
On:
Valid application running
Flashing:
valid application stopped
1 flash:
Paused at BREAKPOINT
Off:
Not programmed
ERR
Error
Red
On:
Exception
Flashing:
Internal error
1 single flash:
minor error detected
3 flashes:
No application
I/O
I/O error
Red
On:
Error on serial 1 or 2, SD card, cartridge, TM4 bus or TM3 bus.
SD
SD card access
Green
On:
SD card is being accessed
