MODBUS.ENDIAN

Description

When reading or writing 32-bit values over Modbus there is no standardization over which 16-bit word is in the lower address. This parameter allows selecting between the two options.

0 = Big endian (default). The high bytes are in the lower address. Often called Motorola order.
1 = Little endian. The low bytes are in the lower address. Often called Intel order.

The order of bytes in a 16-bit word is defined in the standard as big endian.

Example

The following sets the option to use little endian.

-->MODBUS.ENDIAN 1
-->

Context

For more information see, Mapping 32-bit Parameters and Endian.

Versions

Action Version Notes

Implemented

02-05-00-000

 

General Information

Type

Read Write Parameter

Units

N/A

Range

0 or 1

Default Value

0

Data Type

Integer

See Also

MODBUS.MAP

Stored in Non-Volatile Memory

Yes

Fieldbus Information

EtherCAT CoE and CANopen

Command

Index

SubIndex

Data Type

Units

Float Scale

Access

PDO Mappable

MODBUS.ENDIAN

3014h

02h

Unsigned8

-

-

Read/Write

No

EtherNet/IP

Name

ID

Hex

Data Type

Access

Units

MODBUS.ENDIAN

3703

E77

Unsigned8

Read/Write

-

PROFINET

Parameter

PNU

Data Type

Access

Units

MODBUS.ENDIAN

3703

Unsigned8

Read/Write

-