# \[FEATURE\] mix warm and cold device on a redundant gateway?

**URL:** <https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [June 28, 2021, 2:03pm UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275 "2021-06-28T14:03:18Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [June 28, 2021, 2:03pm UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275/1 "2021-06-28T14:03:18Z")

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we have a redundant gateway with Warm mode.  
We would like ti have some devices in **“cold”** mode and some device in **“warm”**.  
Is there any solution or workaround for this kind of settings ?

Some device dosen’t accep more than one connection…

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [June 29, 2021, 10:11am UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275/2 "2021-06-29T10:11:40Z")

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Hi @pturmel,  
Perhaps your **modbus driver** enable to do that ?  
A settings on the mobus device to force “device cold mode” (no connection and no poll if the gateway is passive) on a redundant gateway configured in **warm mode**?

@Kevin.Herron, It could be a valuable feature for driver devices !

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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:** [June 29, 2021, 12:30pm UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275/3 "2021-06-29T12:30:09Z")

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I just monitor the redundancy state and disable outbound connections when inactive. I don’t monitor warm vs. cold, just active vs. inactive.

Sounds like my module does what you want out of the box.

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [June 29, 2021, 2:17pm UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275/4 "2021-06-29T14:17:10Z")

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Yes, it seems to be exactly what we need as our modbus slave device only accept one TCP connection !

(I have a module for snmp device with a per device parameter “disable Warm poll” for this need. But no modules for modbus)

Can you post a link to test your modbus module ?  
An official release will be available soon ?

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<div class="post-metadata">

**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:** [June 29, 2021, 2:27pm UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275/5 "2021-06-29T14:27:53Z")

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> [@mazeyrat](#):
>
> Can you post a link to test your modbus module ?

The latest are here:

> [@Automation Professionals' Advanced Modbus Driver](http://forum.inductiveautomation.com/t/automation-professionals-advanced-modbus-driver/41312/14):
>
> New release candidates: For v7.9: here. For v8.1: here. Be aware that some wicket resources changed, so a gateway restart is required after upgrade if a prior version was installed. All of Ben’s items have been addressed, and the alternate address formats have been implemented as described in the manual.

> [@mazeyrat](#):
>
> An official release will be available soon ?

Hopefully. I have a bug in the local serial port support that I haven't had a chance to work on.