Modbus Motion Interface

Read_Word(System_+_WordAlignmentCheck_w);

Description

This register holds a known word value to confirm that the word registers are aligned with the addressing convention of the master. The master should read from this register the value 12345 decimal. If this is not the value read then try reading at adjacent addresses. If these alternate addresses produce the proper 12345 value then the indicated offset will have to be used for all references to the Modbus Register Map.

Escapes

Reading the Word Alignment Check Constant does not generate any escapes.

Examples

Confirm the register alignment.

if Read_Word(System_+_WordAlgnmentCheck) = 12345 then Show_Message('Registers are aligned to values indicated in map')

Related Topics

Single Alignment Check Constant
Double Alignment Check Constant