BeiJer GN-9371 - 0 X10) Write Multiple Registers

GN-9371_2_3 User Manual
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G-series GN-9371_2_3 PIO Rev. 1.02.docx
A.3.9 (0x10) Write Multiple Registers
This function code is used to write a block of contiguous registers (1 to approx. 120 registers) in a remote
device.
The requested written values are specified in the request data field. Data is packed as two bytes per register.
The normal response returns the function code, starting address, and quantity of registers written.
• Request
Field name
Example
RTU
Start of Frame
-
t1-t2-t3
Slave Address
0x07
0x07
Function Code
0x0F
0x0F
Starting Address Hi
0x08
0x08
Starting Address Lo
0x00
0x00
Quantity of Registers Hi
0x00
0x00
Quantity of Registers Lo
0x02
0x02
Byte Count
0x04
0x04
Register Value #0 Hi
0x11
0x11
Register Value #0 Lo
0x22
0x22
Register Value #1 Hi
0x33
0x33
Register Value #1 Lo
0x44
0x44
Error Check (CRC/LRC)
-
0x3B, 0x12
End of Frame
-
t1-t2-t3
• Response
Field name
Example
RTU
Start of Frame
-
t1-t2-t3
Slave Address
0x07
0x07
Function Code
0x0F
0x0F
Starting Address Hi
0x08
0x08
Starting Address Lo
0x00
0x00
Quantity of Outputs Hi
0x00
0x00
Quantity of Outputs Lo
0x02
0x02
Error Check (CRC/LRC)
-
0x43, 0xCE
End of Frame
-
t1-t2-t3
- In case of address 0x0800, 0x0801 output register value: 0x0000, 0x0000 changes to 0x1122, 0x3344.