l-com SRWQ100-YL105-9001 User Manual page 6

Read Floating Point Number
Host Computer Transmission Format:
ID
Address
Eg: Read 0x01
Measured
Value
Eg: Read 0x01
Temp. Value
Slave Computer Response Format:
ID
Address
Eg: 0x01
Measured
Value
Return
Eg: Temp. 0x01
Value
Return
Note: 72 37 41 DB transfer to floating point number, CDAB change order is ABCD,
i.e. 41 DB 72 37 transfer to floating point is 27.4.
Read Integer
Host Computer Transmission Format:
ID
Address
Eg: Read 0x01
Warning
Status
Slave Computer Response Format:
ID
Address
Eg: Measured 0x01
Value Return
Func- Register Start
tion Address
Code
High
Byte
0x03 0x00
0x03 0x00
Func- Qty of
tion Registers
Code
0x03 0x04 0x2C
0x03 0x04 0x72
Function Register Start
Code Address
High Low Byte
Byte
0x03 0x00
Function Qty of
Code Registers
0x03 0x02
6
Qty. Of
Registers
Low High Low
Byte Byte Byte
0x01 0x00 0x02
0x03 0x00 0x02
Read Register Data in
Hexadecimal Floating Point
Number
C D A
0x81 0x40
0x37 0x41
Qty. Of
Registers
High Low
Byte Byte
0x07 0x00 0x01
Read Register Data in
Hexadecimal Floating
Point Number
A B
0x00 0x00
CRC16
High Low
Byte Byte
0xCB 0x95
0x0B 0x34
CRC16
B High Low
Byte Byte
0x91 0xE7 0x52
0xDB 0x8E 0x20
CRC16
High Low
Byte Byte
0xCB 0x35
CRC16
High Low
Byte Byte
0x44 0xB8