Yaskawa MP2000iec Controller

May 18, 2026 14:08
Updated

Compatible Devices

Yaskawa MP2xxxiec Controllers [yaskawamp2000iec | Word]

Device Options

Select Device Identification and Protocol Options
Configure IEC mapping fields:

IEC Bits Start → maps IX to Modbus 00000, QX to 10000
IEC Low Register Block 0 → maps to Modbus 30000 / 40000
IEC High Register Block 0 → maps to Modbus 41024
Byte ordering:
- Default = Little Endian
Write control:
- Default range = 40000–41023
- Optional extension up to 42047 [yaskawamp2000iec | Word]

Accessible Data

Prefix	Description	IEC Start	Maximum
IX	Coils	IEC Bits Start	+127
QX	Inputs	IEC Bits Start	+127
QB	Input Registers	IEC Low Block 0	+1024
IB	Holding Registers	IEC Low Block 0	+1024
Q	Holding Registers (Read Only)	IEC High Block 0	+1024
R4Q	32‑bit Real (Input)	IEC Low Block 0	+2048
R8Q	64‑bit LReal (Input)	IEC Low Block 0	+2048
R4L	32‑bit Real (Holding)	IEC Low Block 0	+2048
R8L	64‑bit LReal (Holding)	IEC Low Block 0	+2048

[yaskawamp2000iec | Word]

Direct Modbus Access

Prefix	Type	Range Start	Range End
0	Coils	0	9999
1	Inputs	0	9999
3	Input Registers	0	9999
4	Holding Registers	0	9999
I4Q	32‑bit Real Input	0	9998
I8Q	64‑bit LReal Input	0	9996
L4I	32‑bit Real Holding	0	9998
L8I	64‑bit LReal Holding	0	9996

[yaskawamp2000iec | Word]

Notes

I/Q direction:
- I = input to controller
- Q = output from controller [yaskawamp2000iec | Word]
Modbus offset:
- 40001 (standard) = 40000 in driver [yaskawamp2000iec | Word]

Address Alignment Rules

Word → even IEC offset
32‑bit (Long / Real):
- IEC offset = multiple of 4
- Modbus offset = even
64‑bit (LReal):
- IEC offset = multiple of 8
- Modbus offset = multiple of 4
Invalid selections:
- Auto-adjust to nearest lower valid value
- Error message if misaligned [yaskawamp2000iec | Word]

Parameter Conversion

“Update Modbus” → converts IEC → Modbus
“Update Parameter” → converts Modbus → IEC
Invalid entries revert to minimum valid value [yaskawamp2000iec | Word]

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