Master Information
| Offset | Register Address | Byte/Bit | Field ID | Function Description | Function Code | R/W |
|---|---|---|---|---|---|---|
| +000 | D0000 | B15-B8 (High) | D0000_H | Master ID Byte 1 | 0x03 | R |
| +000 | D0000 | B7-B0 (Low) | D0000_L | Master ID Byte 2 | 0x03 | R |
| +001 | D0001 | B15-B8 (High) | D0001_H | Master ID Byte 3 | 0x03 | R |
| +001 | D0001 | B7-B0 (Low) | D0001_L | Master ID Byte 4 | 0x03 | R |
| +002 | D0002 | B15-B8 (High) | D0002_H | Master ID Byte 5 | 0x03 | R |
| +002 | D0002 | B7-B0 (Low) | D0002_L | Master ID Byte 6 | 0x03 | R |
| +003 | D0003 | B15-B8 (High) | D0003_H | Master ID Byte 7 | 0x03 | R |
| +003 | D0003 | B7-B0 (Low) | D0003_L | Master ID Byte 8 | 0x03 | R |
| +004 | D0004 | B15-B8 (High) | D0004_H | Master ID Byte 9 | 0x03 | R |
| +004 | D0004 | B7-B0 (Low) | D0004_L | Master ID Byte 10 | 0x03 | R |
| +005 | D0005 | B15-B8 (High) | D0005_H | Master ID Byte 11 | 0x03 | R |
| +005 | D0005 | B7-B0 (Low) | D0005_L | Master ID Byte 12 | 0x03 | R |
| +006 | D0006 | B15-B8 (High) | D0006_H | Master ID Byte 13 | 0x03 | R |
| +006 | D0006 | B7-B0 (Low) | D0006_L | Master ID Byte 14 | 0x03 | R |
| +007 | D0007 | B15-B8 (High) | D0007_H | Master ID Byte 15 | 0x03 | R |
| +007 | D0007 | B7-B0 (Low) | D0007_L | Master ID Byte 16 | 0x03 | R |
| +008 | D0008 | B15-B8 (High) | D0008_H | Reserved | 0x03 | R |
| +008 | D0008 | B7-B0 (Low) | D0008_L | Master Firmware Version Byte 1 | 0x03 | R |
| +009 | D0009 | B15-B8 (High) | D0009_H | Master Firmware Version Byte 2 | 0x03 | R |
| +009 | D0009 | B7-B0 (Low) | D0009_L | Master Firmware Version Byte 3 | 0x03 | R |
| +010 | D0010 | B15-B8 (High) | D0010_H | Master Firmware Version Byte 4 | 0x03 | R |
| +010 | D0010 | B7-B0 (Low) | D0010_L | Master Firmware Version Byte 5 | 0x03 | R |
| +011 | D0011 | B15-B8 (High) | D0011_H | Reserved | 0x03 | R |
| +011 | D0011 | B7-B0 (Low) | D0011_L | Reserved | 0x03 | R |
| +012 | D0012 | B15-B8 (High) | D0012_H | Master Time - Year (increment from 2000) | 0x03 | R |
| +012 | D0012 | B7-B0 (Low) | D0012_L | Master Time - Month | 0x03 | R |
| +013 | D0013 | B15-B8 (High) | D0013_H | Master Time - Day | 0x03 | R |
| +013 | D0013 | B7-B0 (Low) | D0013_L | Master Time - Hour | 0x03 | R |
| +014 | D0014 | B15-B8 (High) | D0014_H | Master Time - Minute | 0x03 | R |
| +014 | D0014 | B7-B0 (Low) | D0014_L | Master Time - Second | 0x03 | R |
| +015 | D0015 | B15-B8 (High) | D0015_H | Reserved | 0x03 | R |
| +015 | D0015 | B7-B0 (Low) | D0015_L | Reserved | 0x03 | R |
| +016 | D0016 | B15-B8 (High) | D0016_H | Master Software Protocol Version Byte 1 | 0x03 | R |
| +016 | D0016 | B7-B0 (Low) | D0016_L | Master Software Protocol Version Byte 2 | 0x03 | R |
| +017 | D0017 | B15-B8 (High) | D0017_H | Reserved | 0x03 | R |
| +017 | D0017 | B7-B0 (Low) | D0017_L | Reserved | 0x03 | R |
| +018 | D0018 | B15-B8 (High) | D0018_H | Reserved | 0x03 | R |
| +018 | D0018 | B7-B0 (Low) | D0018_L | Reserved | 0x03 | R |
| +019 | D0019 | B15-B8 (High) | D0019_H | Reserved | 0x03 | R |
| +019 | D0019 | B7-B0 (Low) | D0019_L | Reserved | 0x03 | R |
| +020 | D0020 | B15-B8 (High) | D0020_H | Reserved | 0x03 | R |
| +020 | D0020 | B7-B0 (Low) | D0020_L | Reserved | 0x03 | R |
| +021 | D0021 | B15-B8 (High) | D0021_H | Reserved | 0x03 | R |
| +021 | D0021 | B7-B0 (Low) | D0021_L | Channel Communication Status (1=Normal 0=Abnormal) | 0x03 | R |
- Example: Read the software protocol version.
-
Direction Code Request 01 03 00 10 00 01 85 CF Response 01 03 02 02 06 39 26 0x0206 indicates Modbus protocol version 2.6.