Condition:New
Type:Logic ICs
Model Number:5AI5AO
Basic functions:Support standard MODBUS devices such as text, touch screen, PLC, etc.Accuracy of 12 bitADC acquisition for 5-channel 4-20mA, 0-5V and 0-10V current analog signals.
5-channel analog output (4-20mA, 0-5V, 0-10V)
1-way standard 485 communication port (supporting modbus-RTU protocol free port communication protocol)
Analog Signal Output uuuuuuuuuuuu06Signal function |
|
06Number function numbers are used to write a single hold register. |
|
1(Home Station Request Message) |
|
|
|
Message content | length | Range of values | Example |
Slave address | 1byte | 0x01~ 0x1F | 0x01 |
Function code | 1byte | 0x06 | 0x06 |
Initial address | 2byte | 0x0000~ 0x0006 | 0x0000 |
Register value | 2byte | 0x0000~ 0x0FFF | 0x07FF |
CRCcheck | 2byte | Protocol generation | 0xCBBA |
Note 1: For example, the main station requests message. Write No. 0 holding register is 0x1388, that is, set the output current of channel 1 to (2047/4096)*20=10mA (0-4095 corresponds to 0-20mA). |
2(slave station normal response message) |
|
|
Message content | length | Range of values | Example |
Slave address | 1byte | 0x01~ 0x1F | 0x01 |
Function code | 1byte | 0x06 | 0x06 |
Initial address | 2byte | 0x0000~ 0x0006 | 0x0000 |
Register value | 2byte | 0x0000~ 0x0FFF | 0x07FF |
CRCcheck | 2byte | Protocol generation | 0xCBBA |
Multiple Channel Analog Output uuuuuuuuuuu16Signal function |
|
16Number function numbers are used to write hold registers, such as two or more consecutive hold registers at a time. |
1(Home Station Request Message) |
|
|
|
Message content | length | Range of values | Example |
Slave address | 1byte | 0x01~ 0x1F | 0x01 |
Function code | 1byte | 0x10 | 0x10 |
Initial address | 2byte | 0x0000~ 0x00FF | 0x0000 |
Register quantity | 2byte | N | 0x0002 |
Bytes | 1byte | 2*N | 0x04 |
Register value | 2*Nbyte |
| 0x00000x07FF |
CRCcheck | 2byte | 0x0000~ 0xFFFF | 0xB1DF |
Note 1: For example, two hold registers starting from 40001 are written to (0,2047) two values respectively. The module outputs voltage: 0V, 5V (or current: 0mA, 10mA) from the first and second channels. |
2(slave station normal response message) |
|
|
Message content | length | Range of values | Example |
Slave address | 1byte | 0x01~ 0x1F | 0x01 |
Function code | 1byte | 0x10 | 0x10 |
Initial address | 2byte | 0x0000~ 0x00FF | 0x0000 |
Register quantity | 2byte | N | 0x0002 |
CRCcheck | 2byte | 0x0000~ 0xFFFF | 0x41C8 |
Analog quantityInput and outputVC source code(clear notes):
// Read the status of a single register
//ip_Addr slave MODBUS address
//data_Addr Data Storage Register Address
UInt16 readBUF (byte ip_Addr, UInt16 data_Addr)
{
UInt16 crc; //check value
Byte [] MSG = new byte [8]; // instruction array
MSG [0] = ip_Addr; //slave address
MSG [1] = 0x04; // Read a single register
MSG [2] = byte (data_Addr > 8); high bit of // register address
MSG [3]= (byte) data_Addr; low bit // register address
MSG [4] = 0x00; high bit of data length to read
MSG [5] = 0x01; the base length of the data to be read
CRC = CRC16 (msg, 6);
MSG [6] = byte (crc > 8); 8 digits higher in // check
MSG [7] = (byte) crc; //check low 8 bits
Comm.Write(msg); //Send Read Request Zheng
Receive_A_Frame(); //Receive the Zhen reply signal
// Add here: Judge the received data
}
...More source code, please contact the seller after buying.
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