Name: Omron M1 Series
Brand: Omron
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Parameter

No.

MODBUS ad-

dress (MSB)

MODBUS ad-

dress (LSB)

Parameter name

Communica-

tion data for-

mat (during

single-word

access)

Communica-

tion data for-

mat (during

double-word

access)

W43 5271h -

Communications Control Out-

put Signal Monitor

15 -

W44 5272h -

Input Terminal [AI1] Input Volt-

age

4 -

W45 5273h -

Input Terminal [AI2]AII Input

Current (AII)

4 -

W46 5274h -

Output Terminal [AO]AOV

Output V

oltage

4 -

W48 5276h -

Output Terminal [AO]PO Out-

put Frequency

1 -

W49 5277h -

Input Terminal [AI2] Input Volt-

age (AIV)

4 -

W50 5278h -

Terminal [AO](AOI) output

current

3 -

W55 527Dh -

Pulse Input (A/B Phase [PIA]

[PIB])

6 -

W56 527Eh - Pulse Input (Z Phase [PIZ]) 1 -

W57 527Fh - Reserved 73 -

W58 5280h - Reserved 1 -

W59 5281h - Reserved 73 -

W60 5282h - Reserved 1 -

W61 5283h - Reserved 73 -

W62 5284h - Reserved 1 -

W63 5285h - Reserved 1 -

W66 5288h - Reserved 4 -

W67 5289h -

Cumulative Run Time of Ca-

pacitors on Printed Circuit

Boards

74 -

W68 528Ah -

Cumulative Run Time of Cool-

ing Fan

74 -

W70 528Ch 528Dh Total Power ON Time Monitor 1 1

W71 1025h -

Main circuit DC voltage Moni-

tor

3 -

W72 528Fh -

Internal Air Highest Tempera-

ture

2 -

W73 5290h -

Heat Sink Maximum Tempera-

ture

2 -

W74 5291h -

Maximum Effective Current

alue

19 -

W75 5292h -

Main Circuit Capacitor's Ca-

pacitor Monitor

3 -

W76

1016h 1017h

Cumulative Run Time of Elec-

trolytic Capacitors on PC

Board

1 1

W77 5295h 5296h

Cumulative Run Time of Cool-

ing Fan

1 1

8 Communications Functions

8-79

M1 Series Standard Type User's Manual (I669)

8-9 Modbus Communication Data Lists

8-9-2 Register List

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Omron M1 Series Specifications

General

Input Voltage	200-240V AC
Output Voltage	3-phase 200 to 240 VAC
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit
Communication	RS-485, Modbus RTU
Enclosure	IP20
Cooling Method	Fan Cooled
Operating Temperature	-10°C to +50°C
Humidity	5-95% (non-condensing)
Altitude	Up to 1000m
Frequency Range	0.5-400 Hz
Storage Temperature	-20°C to +65°C