# Modbus TCP swap bytes

**URL:** <https://forum.inductiveautomation.com/t/modbus-tcp-swap-bytes/25009>\
**Category:** Ignition\
**Created:** [May 15, 2019, 2:49am UTC](https://forum.inductiveautomation.com/t/modbus-tcp-swap-bytes/25009 "2019-05-15T02:49:28Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [December 8, 2020, 9:02pm UTC](https://forum.inductiveautomation.com/t/modbus-tcp-swap-bytes/25009/10 "2020-12-08T21:02:06Z")

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Sorry to disappoint, but I decided to _not_ implement byte swapping for integers. There's many things in the Modbus spec that have been left to implementers, but this one wasn't. Sorry. Lots of other goodies, there, though:

> [@Automation Professionals' Advanced Modbus Driver](http://forum.inductiveautomation.com/t/automation-professionals-advanced-modbus-driver/41312):
>
> Automation Professionals is pleased to announce the first beta for its Advanced Modbus Driver, for Ignition version 7.9. Key features: Server mode, emulating one or more slave [devices](https://www.automation-pros.com/modbus/UserManual.pdf), using any of the three typical connection types, including simultaneous connections of multiple types. Client mode, incorporating all three connection modes in one driver. Support for Modbus Function Codes 20 and 21, File Records. Configure protocol tweaks for troublesome devices per slave unit, enabling suppor…

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