ToolLink User Manual
MKS Instruments, Inc.
Page 27 of 30
Byte Swapping – Attribute 21
When enabled, this switches the byte positions of each byte pair in the data field poll command and poll
response. This is useful with many PLC devices that reverse the positions of each byte pair in memory,
garbling up string data.
Default byte positions: [1] [2] [3] [4] [5] [6][7]
Swapped positions: [2] [1] [4] [3] [6] [5][7]
Note that if the last byte has an odd-numbered position, it retains the same position with “Byte Swapping”
enabled.