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 |
|
|
Stored in Non-Volatile Memory |
Yes |
Fieldbus Information
|
Command |
Index |
SubIndex |
Data Type |
Units |
Float Scale |
Access |
PDO Mappable |
|---|---|---|---|---|---|---|---|
|
MODBUS.ENDIAN |
3014h |
02h |
Unsigned8 |
- |
- |
Read/Write |
No |
|
ID |
Instance |
Attribute |
Name |
Data Type |
Access |
User Mappable |
|---|---|---|---|---|---|---|
|
3703 |
1 |
3703 (0xe77) |
MODBUS.ENDIAN |
Unsigned8 |
Read/Write |
Yes |
|
Parameter |
PNU |
Data Type |
Access |
Units |
|---|---|---|---|---|
|
MODBUS.ENDIAN |
3703 |
Unsigned8 |
Read/Write |
- |
