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)

C42 327Dh -

Input Terminal [AI2] Gain (AIV

Command)

5 -

C43 327Eh -

Input Terminal [AI2] Filter

(AIV)

5 -

C44 327Fh -

Input Terminal [AI2] Gain (AIV

Analog Input)

5 -

C45 3280h -

Input Terminal [AI2] Polarity　

Selection (AIV)

1 -

C50 3285h -

Input Terminal [AI1, AI2] Bias

Analog Input for 1st Frequen-

cy Command

5 -

C53 3288h -

Input Terminal [AI1, AI2] Nor-

mal/Inverse Operation for 1st

Frequency Command

1 -

C54 3289h -

Input Terminal [AI1, AI2] Nor-

mal/Inverse Operation for 2nd

Frequency Command

1 -

C55 328Ah -

Input Terminal [AI1] Bias

(Command)

6 -

C56 328Bh -

Input Terminal [AI1] Bias (An-

alog Input)

5 -

C58 328Dh - Reserved 1 -

C59 328Eh -

Input Terminal [AI1] Analog In-

put Adjustment Maximum

Scale

12 -

C60 328Fh -

Input Terminal [AI1] Analog In-

put Adjustment Minimum

Scale

12 -

C61 3290h -

Input Terminal [AI2] Bias (AII

Command)

6 -

C62 3291h -

Input Terminal [AI2] Bias (AII

Analog Input)

5 -

C64 3293h - Reserved 1 -

C65 3294h -

Input Terminal [AI2] Analog In-

put Adjustment Maximum

Scale (AII)

12 -

C66 3295h -

Input Terminal [AI2] Analog In-

put Adjustment Minimum

Scale (AII)

12 -

C67 3296h -

Input Terminal [AI2] Bias (AIV

Command)

6 -

C68 3297h -

Input Terminal [AI2] Bias (AIV

Analog Input)

5 -

C70 3299h - Reserved 1 -

C71 329Ah -

Input Terminal [AI2] Analog In-

put Adjustment Maximum

Scale (AIV)

12 -

8 Communications Functions

8-55

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