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Reset tact switch
Connecting the power supply
LEDs
3.3.1
LEDs
(1) PWR: Power LED
Indicates if the unit is working correctly. After a power-cycle the unit starts and checks the correct
operation. If the startup check was successful, the Power LED flashes.
(2) CON: Connection
Used by some internal features to indicate an established connection.
(3) USR: User
Can be set by a PLC program to indicate something special.
(4) MEM: Memory access
Indicates a writing operation to an USB stick.
(5) USB 1 and USB 2
Indicate activity at the USB ports
(6) TX1
Indicates data transmission via the RS232 interface (COM1)
(7) TX2
Indicates data transmission via the RS232/RS485 interface (COM2)
3.3.2
Reset tact switch
3.3.2.1 Restart the unit
Within the housing on the top side you can find a small tact switch. You can use a flat/dulled
spike or a paperclip to operate the tact switch.
The reset tact switch can be used to restart the unit.
FP-I4C
(page 13)
(page 27)
(page 13)
(1)
PWR
(2)
CON
(3)
USR
(4)
MEM
1
(5)
2
(6)
1
COM
(7)
2
3.3 Parts and functions
13
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