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Chengdu Ebyte Electronic Technology Co., Ltd.
DI 1
DI 2
DI 3
DI 4
DO 1
Relay 1 output indication
DO 2
Relay 2 output indication
DO 3
Relay 3 output indication
DO 4
Relay 4 output indication
NET
DATA
Serial port data indication
WORK
PWR
Notice:
Grounding: It is recommended to connect the shell to the earth
2.3 Description of Reload touch button
Long press for 5 seconds is effective. After the reset is successful, the WORK light flashes quickly, and the Modbus device
address, RS485 serial port baud rate and check digit are restored to factory settings.
Copyright © 2012, Chengdu Ebyte Electronic Technology Co., Ltd.
Digital input channel 1
indication
Digital input channel 2
indication
Digital input channel 3
indication
Digital input channel 4
indication
network instructions
Work/reset indication
Power indicator
Green LED, DI 1, DIG short circuit lights up
Green LED, DI 2, DIG short circuit lights up
Green LED, DI 3, DIG short circuit lights up
Green LED, DI 4, DIG shorted on
Green LED, NO 1, COM 1 closed light up
Green LED, NO 2, COM 2 closed light up
Green LED, NO 3, COM 3 closed light up
Green LED, NO 4, COM 4 closed light up
Yellow LED, always on after connecting to the network
Yellow LED, lights up when the RS485 interface has data transmission
(expressed as flashing)
Yellow LED, flashes regularly/flashes quickly after successful reset
Red LED, always on
E851-RTU(4440-ETH) User Manual
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