9.3 RS 485 communication 
  9.3.1 Communication protocol
      9.3.1.1 RS485 communication interface, asynchronous half-duplex mode.
      9.3.1.2 Communication baud rate 4800, 9600bps which can be set. Factory default value is 9600bps.
      9.3.1.3 Data format: N81 no parity bit, 8 data bits, 1 stop bit.
RS485 interface; Connection type: asynchronous half-duplex; International standard Mod bus RTU protocol, instrument address: 1 ~ 247, what is more, it supports 03H read command currently.
Message format:
Command 3 H: read command
Master requests: address + Command + data address + data length + CRC check code
               1byte + 1byte + 2byte+ 2byte + 2byte
Address: in order to query the address code, set within 1 ~ 247 and it takes up one byte
Command: 3 H read command, length is 1 byte
Data address: read data source address, and it takes up 2 bytes
Data length: read data bytes length
CRC16 check code: low 8 bits in front, high 8 bits in the back, and it takes up 2 bytes
Slaver requests: address + Command + data length + data information + CRC check code Address: in order to response the address code and it takes up one byte
Command: 3 H read command, length is 1 byte
Data length: data bytes length which is to send 
Data information: read data, see the meter parameter address table if you want to know specifics
CRC16 check code: low 8 bits in front, high 8 bits in the back, and it takes up 2 bytes
               1byte + 1byte + 1byte+ n byte + 2byte
9.2 Analog transmitting output
Analog transmitting output option: DC4~20mA. Analog transmitting output is linear with input signal isolation, and it is widely applied to PLC, DCS etc collection.
Precision 0.5 grade, load resistance<500Ω while current input, load resistance>100Ω while voltage input.

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4.Solve the problem with you during using our products.

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4. We also can send to your forwarder or agent in China, who can arrange shipment for you.

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  A:If you need some samples to test,please pay for the transportation freight of samples and our samples will be counted on the next order .We send the samples to you only after receipt of your payment.

2.Q:How much the transportation freight will be for the samples?
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  A:Sure.Your Logo can be puted on our products by sticker.And if you want your logo and company name to be printed on the cartons for the products,you can send us the artwork by email.

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Name:Lemon

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