Network Transparent Transmission Mode; Moqtt Mode - Ebyte E870-E1 User Manual

Edge collection cloud io gateway

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Chengdu Ebyte Electronic Technology Co., Ltd.

Return: 01 04 04 0F A0 13 88 F5 E4 (1st road: 4000uA, 2nd road: 5000uA)

Read the collected current signal (floating point):

Send: 01 04 00 C8 00 04 30 14

Return: 01 04 08 40 80 00 00 40 A0 00 00 B4 17 (The first channel: 4mA, the second channel: 5mA)

Configured as 0-20mA acquisition mode (the first and second channels are configured at the same time):

Send: 01 10 04 4C 00 02 04 00 00 00 00 C5 0A

Configured as 4-20mA acquisition mode (the first and second channels are configured at the same time):

Send: 01 10 04 4C 00 02 04 00 01 00 01 55 0A

[Note] Floating point numbers are stored in IEEE754 single-precision big-endian format (ABCD), for example,

12.5mA uses hexadecimal number 0x41480000;

The switch can be turned on or off to input AI acquisition signals to actively report, and the conditions for the

realization of AI's active reporting function support configuration change reporting, periodical, change

reporting+periodic realization of the device's active reporting function;

Periodic report: report the current status according to the configured time period, the time interval can be

1-65535, unit: minute;

Change reporting: that is, when the AI status changes, the AI status is reported once. The range

condition is a minimum configuration of five decimal places supported.

4.4 Network transparent transmission mode

This product supports TCP client (TCPC) and UDP client (UDPC) transparent communication.

In this mode, the user's serial device can send data to the specified server on the network through this device. The

device can also accept data from the server, and forward the information to the serial device, supporting four-way

independent configuration.

Users do not need to pay attention to the data conversion process between serial port data and network data packets,

and only through simple parameter settings, the data transparent communication between the serial port device and

the network server can be realized.

Set the corresponding MQTT parameters, including ClientID, server address, port, username, password, and topics

to publish and subscribe to. MQTT connection can be realized.

(1) Product key, device name, device key, device ID, product ID, authentication information, device name, client ID,

user name, password, subscription, and publishing can be configured with a maximum of 128Bit, and Alibaba

E870-E1_User Manual_EN

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