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E-mail
442365872@qq.com
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Phone
15821539554
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Address
860 Zhongde Road, Songjiang District, Shanghai
Shanghai Meixu Measurement and Control Technology Co., Ltd
442365872@qq.com
15821539554
860 Zhongde Road, Songjiang District, Shanghai
1.Technical specifications:Meixu Measurement and Control - Wireless Data Collector/Gateway
Model Selection: |
MX-WG-WX05 |
communication frequency: |
Sub 1GHz wireless signal/frequency can be selected. (On site transmission frequency. Refresh time adjustable) |
Comprehensive accuracy: |
0.25%FS(Code name)A);0.5%FS(Code name)B) |
power supplyvoltage: |
220VAC power supply |
acceptSignal: |
Zigbee(code1);LORA wireless signal(code2); |
transmission distance: |
LORA unobstructed 2000 metersIn complex environments, about300 meters; NB wireless signal can directly access the internet (with mobile signal coverage). |
Wired signal: |
RS485(W1);4-20MA(W2) |
Output frequency: |
Sub 1GHz wireless signal. (On site transmission frequency. Refresh time adjustable) |
2. Ordering Guide:Meixu Measurement and Control - Wireless Data Collector/Gateway
model |
precision |
receive signals |
output signal |
Other requirements |
MX-WG-WX05 |
0.25% |
Zigbee |
RS485 |
none |
Example of ordering: |
MX-WG-WX05-A1-W2 |
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3. Special Reminder:
This product is only the backend for data collection (data receiver); A complete wireless acquisition system also requires a transmitter (wireless pressure)Wireless temperature, wireless liquid level, wireless flow)Real time data is transmitted, and the receiver receives wireless signals in the same frequency band and connects them to the computer host through wired connection or to the intelligent digital display meter through the collector one-on-one (in this case, only one-to-one). In other cases, the collector can be paired with multiple transmitters. The specific quantity depends on the collection frequency. If you are unsure, please consult the sales engineer and local agent.
wirelessconcentratorcommunication protocolV2.2
Overview
This communication protocol adopts the standardModbus protocol, the transmission mode used isRTUPatternModbusProtocol is a master-Ad hoc protocol.
Only one device can send on the line at any time. The information exchange is managed by the main station, and only it can initiate it. It will poll the slave stations one after another. Unless approved by the master station, no slave station can send messages. Direct communication between slave stations is not possible.
The protocol frame does not contain any message header bytes or message byte terminators.
Its definition is as follows:
slave address |
Request code |
data |
CRC16 |
Slave station address:-The address must be in1to247between.
-Each address in the network device environment.
data : Transferred in binary code.
CRC16 : Cyclic redundancy check parameter.
When the interval time is longer than or equal to3.5When a character is detected, it is considered as the end of the frame.
contact method Asynchronous serial communication interface, such asRS-485,RS-232,RS-422wait
Baud rate 2400, 48009600The19200bps(Can be changed by setting instrument parameters, default)9600)
. A starting position
. Eight data bits
. even parity
. A stop position
start |
D0 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
even parity |
停止 |