RLE LD2000 - Manual (Page 57)

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5 Modbus Communication
5.2.3 Function 06: Preset Single Register
To set a LD2000 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).
14 1 = MBZ15
15 1 = MBZ16
Table 5.9 Status Flags (Even Registers 30012-30040)
Bit Description
00 1= Leak Alarm
01 1 = Cable Break
02 1 = Contamination Alarm
07 1 = Communication Loss
Table 5.10 Preset Single Register Packet Structure
Preset Register Request Packet Preset Register Response Packet
Slave Address (1 byte) Slave Address (1 byte)
06 (Function code) (1 byte) 06 (Function code) (1 byte)
Register (2 bytes) Register (2 byte)
Data (2 bytes) Data (2 bytes)
Crc Checksum (2 bytes) Crc Checksum (2 bytes)
Table 5.8 Status Flags (Register 30011) (continued)
Bit Description