Function 06: Preset Single Register; Function 16: Preset Multiple Registers; Table 5.8 Preset Single Register Packet Structure; Table 5.9 Preset Multiple Registers Packet Structure - RLE Technologies LD5200 User Manual

5.4.3 Function 06: Preset Single Register

To set the LD5200 parameter value, the master must send a Preset Single Register request
packet. The Preset Single Register request packet specifies a register and the data to write to
that register. The register is numbered from zero (40001 = zero, 40002 = one, etc).
Preset Register Request Packet
Slave Address (1 byte)
06 (Function code) (1 byte)
Register (2 bytes)
Data (2 bytes)
Crc Checksum (2 bytes)
Table 5.8

5.4.4 Function 16: Preset Multiple Registers

To set multiple LD5200 parameter values, the master must send a Preset Multiple Registers
request packet. The Preset Multiple Register request packet specifies a starting register, the
number of registers, a byte count and the data to write to the registers. The register is
numbered from zero (40001 = zero, 40002 = one, etc).
Preset Registers Request Packet
Slave Address (1 byte)
16 (Function code) (1 byte)
Start Register (2 bytes)
# of registers to write (2 bytes)
Byte Count (1 byte)
Data (2 bytes)
...
...
Crc Checksum (2 bytes)
Table 5.9
rletech.com
Preset Single Register Packet Structure
Preset Multiple Registers Packet Structure
LD5200 User Guide
Preset Register Response Packet
Slave Address (1 byte)
06 (Function code) (1 byte)
Register (2 byte)
Data (2 bytes)
Crc Checksum (2 bytes)
Preset Registers Response Packet
Slave Address (1 byte)
16 (Function code) (1 byte)
Start Register (2 bytes)
# of registers (2 bytes)
Crc Checksum (2 bytes)
5 Modbus Communication
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