Toolkit workbench · working example available
Modbus Register and REAL Workbench
Decode a register pair as REAL, DINT or DWORD with explicit byte order and zero-based addressing; review batch maps.
Worked example
Registers 0x3F80 and 0x0000 in ABCD order represent REAL 1.0 and unsigned integer 1065353216. A holding-register reference 40001 conventionally maps to protocol offset 0; confirm the device map.
- IEEE754 REAL
- 1
- Signed DINT
- 1,065,353,216
- Unsigned DWORD
- 1,065,353,216
- Combined hex
- 3F800000
- Protocol offsets
- 0 / 1
- Conventional holding-register references
- 40001 / 40002
ABCD means A high byte, A low byte, B high byte, B low byte. CDAB swaps words; BADC swaps bytes within words; DCBA swaps both. Modbus defines 16-bit registers; the device determines how multi-register data is represented.
Batch register-map review
First 100 rows shown. Overlapping register positions: 0. Review reused offsets.
Row 1: 0: REAL 1; DINT 1065353216; hex 3F800000
Row 2: 2: REAL 2; DINT 1073741824; hex 40000000
Modbus Register and REAL Workbench
Inspect the worked example and fixed preview before choosing a plan.
Decode a register pair as REAL, DINT or DWORD with explicit byte order and zero-based addressing; review batch maps.
- Enter your own register pairs
- Compare all four byte orders
- Review a batch register map
Toolkit unlocks advanced tool operation. Pro Toolkit adds the troubleshooting knowledge base, field-document builders, and included library downloads.
Your plan applies across the site. Work saved on this device is not synchronized to other devices.
Reference: Modbus protocol specifications. Review inputs and results against the exact device and site requirements.