# Slow Response from Devices on Modbus RS485 Network

**URL:** <https://forum.inductiveautomation.com/t/slow-response-from-devices-on-modbus-rs485-network/98168>\
**Category:** Ignition\
**Tags:** modbus, ignition81\
**Created:** [November 5, 2024, 12:28am UTC](https://forum.inductiveautomation.com/t/slow-response-from-devices-on-modbus-rs485-network/98168 "2024-11-05T00:28:09Z")\
**Posts on this page:** 1\
**Showing post:** 5

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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:** [November 6, 2024, 2:56am UTC](https://forum.inductiveautomation.com/t/slow-response-from-devices-on-modbus-rs485-network/98168/5 "2024-11-06T02:56:07Z")

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> [@Sameer\_Ambegaonkar](#):
>
> not standard behaviour with RS485 devices

It is, typically, whether Ignition or not.

> [@Sameer\_Ambegaonkar](#):
>
> switching drivers

> [@Automation Professionals' Advanced Modbus Driver](https://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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