Ebyte E150-400T30S, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co.,Ltd.
E150-400T30S user manual
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
26
Chapter 8 module control
8.1 digital input (DI)

E150-400T30S has 4 pin digital input pin (DI)

DI will be used as an interrupt pull-up input in normal mode, and the interrupt will be turned off in sleep
mode to avoid waking up the module by mistake.

Use the function code of reading coil status (01) to read the discrete input coil status
For example: read the status of DI1 ~ DI4
01 02 00 00 00 04 79 C9
Device Modbus
address
function code Register first
address
Number of output
coils read
CRC check code
Note:
The CRC check code of the last two bytes of the sending instruction needs to be calculated by the user.
Serial port sending: 01 02 00 00 04 79 C9
Remote wireless transmission: 01 02 00 00 00 04 79 C9
After sending the above command to the device via serial port or wireless, the device will return the following
values to the serial port or wireless:
01 02 01 0F E1 8C
Device Modbus
address
function code number of
bytes of data
Status data
returned
CRC check
code
The above "returned status data" 0F means that the output DI1~DI4 are high level.
Serial port receive return value: 01 02 01 0F E1 8C
Remote wireless reception return value: 01 02 01 0F E1 8C
8.2 digital output (DO)

E150-400T30S has 4-pin digital output pin (DO)
 DO
1 and DO2 are set as open drain output. Users must add external pull-up when using. The maximum voltage
of external pull-up is 6V
 DO
3 and DO4 are set as push-pull output, and the output level is 0 / 3.3V
 U
se the 0f function code to write commands for multiple coils
For example: DO1 ~ DO4 output high level