Chengdu Ebyte Electronic Technology Co., Ltd.
E870-W1 User Manual
Copyright © 2012 , Chengdu Ebyte Electronic Technology Co., Ltd.
20
Configured as 0-20 mA acquisition mode (the first channel and the second channel are configured at the same
time):
Send: 01 10 04 4C 00 02 04 00 00 00 00 C5 0A
Configured as 4-20 mA acquisition mode (the first channel and the second channel 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,
12.5 mA uses a hexadecimal number 0x 41480000 ;
4.3.2. Active reporting of status
You can turn on or off the switch to input the active reporting of AI acquisition signals. The condition for realizing
the active reporting function of AI is to configure change reporting, periodic reporting or change rep
periodic reporting to realize this active reporting function. Periodic reporting is reported according to the timing,
and the time interval It can be 0-65535, unit: minute; the change report means that the AI input value is reported
once when the AI input range changes, and the range condition is 0~3.4e38 (a 4-byte float greater than 0) .
4.4. Network transparent transmission mode
This product supports TCP client ( TCPC ), UDP client ( UDPC ), TCP server ( TCPS ), UDP server ( UDPS )
transparent transmission communication.
In this mode, the user's serial device can send data to the designated 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
independent configurations.
Users do not need to pay attention to the data conversion process between serial port data and network data packets,
and can realize data transparent communication between serial port devices and network servers only through
simple parameter settings.
Summary of Contents for E870-W1
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