Constant Objects (Byte, Word, Dword) - Anybus Communicator Modbus plus User Manual

7.3 Constant Objects (Byte, Word, Dword)

Constant Objects have a fixed value and come in three sizes:
• Byte
8 bits
• Word
16 bits
• Dword
32 bits
Constants are handled differently depending on the direction of the transaction:
• Produce/Query Transactions
The gateway will send the value as it is without processing it.
• Consume/Response Transactions
The gateway will check if the received byte/word/dword matches the specified value. If not, the
message will be discarded.
To set the value of the object, select it in the Navigation Section and enter the desired value in the Pa-
rameter section.
Parameter
Value
Anybus Communicator for Modbus Plus
Doc.Rev. 3.01
Description
Constant value
Frame Objects 40
Doc.Id. SCM-1200-093