Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Categories
  • Forums
  • Knowledge Center
  • Blogs
  • Ideas
  • Events & Webinars
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

Share Your Feedback – Help Us Improve Search on Community!
Please take a few minutes to participate in our Search Feedback Survey. Your insights will help us deliver the results you need faster and more accurately.
Click here to take the survey

HVAC and Pumping Forum

Support Forum for HVAC and pumping machines, Modicon M17x and EcoStruxure Machine Expert HVAC software for chillers, AHU, CRAC units for datacenters or process chillers applications - from design, implementation to troubleshooting and more, by Schneider Electric.

Search in

Improve your search experience:

  • Exact phrase → Use quotes " " (e.g., "error 404")
  • Wildcard → Use * for partial words (e.g., build*, *tion)
  • AND / OR → Combine keywords (e.g., login AND error, login OR sign‑in)
  • Keep it short → Use 2–3 relevant words , not full sentences
  • Filters → Narrow results by section (Knowledge Base, Users, Products)
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Home
  • Schneider Electric Community
  • Industrial Automation
  • HVAC and Pumping Forum
Options
  • Mark all as New
  • Mark all as Read
  • Float this item to the top
  • Subscribe
  • Bookmark
  • Invite a Friend
  • Threaded format
  • Linear Format
  • Sort by Topic Start Date
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Labels
Top Labels
  • Alphabetical
  • HVAC 223
  • Connectivity 46
  • Modicon M2xx 40
  • Digital 16
  • Lexium 12
  • Material Handling 10
  • Efficiency 9
  • PacDrive 8
  • Safety 7
  • Pumping 6
  • Robotics 5
  • Material Working 4
  • Packaging 2
  • EcoStruxure Automation Expert 1
  • IP Controllers 1
  • eCommissioning Tool 1
  • Training 1
  • Low Voltage AC Drives 1
  • Hoisting 1
  • Previous
  • 1 of 2
  • Next
Top Experts
User Count
FedericoM
Captain FedericoM Captain
96
Bastian_Schmitz
Admiral Bastian_Schmitz Admiral
56
M_Cervati
M_Cervati Support
17
View All
Related Products
Thumbnail of EcoStruxure™ Machine Expert - HVAC
Schneider Electric
EcoStruxure™ Machine Expert - HVAC
126
Thumbnail of EcoStruxure™ Machine Expert - HVAC
Schneider Electric
EcoStruxure™ Machine Expert - HVAC
40
Thumbnail of EcoStruxure™ Machine Expert
Schneider Electric
EcoStruxure™ Machine Expert
12
Load more

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Announcements & Events

HVAC & Pumping Forum: Formerly known as Machine Automation Forum, this community has been re-launched to provide a more focused platform for professionals in the HVAC and Pumping industry. Join us to enhance your knowledge, share insights, and ask questions with the HVAC & Pumping community.



Need support for Machine Automation solutions?
Ask your questions and get expert answers in the Machine and Motion Control Forum.This is now your space for exchanging information about Machine & Motion Control solutions and products. Share your questions, ideas, or examples with the community!



Need support for Variable Speed Drives?
Ask your questions and get expert answers in the Solutions for Motor Management Forum.

HVAC and Pumping Forum

Start a Topic
  • All
  • Solved
  • Unsolved
  • Unanswered
BZ
Crewman BZ Crewman

Virtual Training Calendar for Machine Automation

Hello everyone, We would like to highlight that there are some available seats for Virtual Classes in Q3 of Y2025 in our Machine Automation training team as below, come and join us!!! EcoStruxure...
Industrial Automation icon_circle HVAC and Pumping Forum
1162 2 0

2024-01-25

Solved
Anonymous user
Anonymous user

Communication between M172 and TM172DCL

Hi, I am trying to connect TM172DCL (Display for M172) but I keep getting Modbus Comm error. Current Setting: 1. I am using RS485-2 as a Modbus Master on M172. 2. Created a Generic Modbus Device ...
Industrial Automation icon_circle HVAC and Pumping Forum
8228 1 15
Latest Reply: Philippe6

Solved
viy-777
Crewman viy-777

The TM172PDG42RI 42 I/O PLC is not polled using the Modbus RTU protoco...

Hello! The task is to poll the PLC using the Modbus RTU protocol (by RS485-2). All the necessary settings have been made: 1. In the Configuration for RS485-2, the mode was set to "Modbus Slave-BACnet M...
Industrial Automation icon_circle HVAC and Pumping Forum
273 0 2
Latest Reply: viy-777

Solved
obscuresc
Lieutenant obscuresc

M172 - download on command line updates and generating the USB files

Hi, I have a copy of the 'HowToUse_DownloadOnLineCommand' rev3. Is there a new version of this resource? Also, I want to be able to use the 'EWDevice.exe' or similar to generate the USB files using...
Industrial Automation icon_circle HVAC and Pumping Forum
398 0 4
Latest Reply: obscuresc

Solved
9801163
Crewman 9801163

OperatingHours and sysTimer

Hi I used the operation hours in structured text but it did not seem to work. I am a little confused with the pins in the manual. The input is a local digital input, the output is a status variabl...
Industrial Automation icon_circle HVAC and Pumping Forum
269 0 3
Latest Reply: 9801163

Solved
tfmt100
Crewman tfmt100

M172 Webserver Maximum Connections

Hello! I couldnt find anywhere, the maximum simultaneous possible connections to M172 Webserver? It gets somehow slow or lagging if there's too many?Another question, has anybody tested M172SIG on thir...
Industrial Automation icon_circle HVAC and Pumping Forum
495 0 3
Latest Reply: tfmt100

Solved
iwave_ro
Ensign iwave_ro

SpaceLogic TC900 thermostat write register FC06 with Modbus Modicon M1...

Hello, How can I write some modbus register (eg: setpoint) to the thermostat TC903 using function code 06 with M172 using EcoStruxure™ Machine Expert - HVAC version 1.7?The PLC writes using function co...
Industrial Automation icon_circle HVAC and Pumping Forum
175 0 1
Latest Reply: FedericoM

Solved
Jacek_S
Lieutenant JG Jacek_S

M172 - Modbus RTU + Saving to EEPROM

Hello everyone, I have a topic related to the integration of Carel HMI panels and a Modicon M172 PLC.Currently, the communication between the PLC and the Basic HMI panel is done via Modbus RTU. What I ...
Industrial Automation icon_circle HVAC and Pumping Forum
597 0 4
Latest Reply: sammum

Informational
FedericoM
Captain FedericoM Captain

Announcement: Application Addons Function & Function Block Library for...

Dear Community Members, We are excited to share another library of functions and function blocks designed to streamline development in HVAC and Pumping projects. Application Addons library ...
Industrial Automation icon_circle HVAC and Pumping Forum
1036 3 1
Latest Reply: StevenCho

Solved
JDHALLUIN
JDHALLUIN

TCP/IP M172 connection with aveva scada

Hello, I'm a novice in M172 development, I develop a program with a TM172PDG42SI. I fill all IP adress in PLC. I have a dedicated WLAN network with all PLC in my site (most of them are M340). The pro...
Industrial Automation icon_circle HVAC and Pumping Forum
700 0 3
Latest Reply: sesa103402

Solved
obscuresc
Lieutenant obscuresc

Do the M172* PLCs have data stored on board that can be used to identi...

There was a batch of PLCs that we handled a while ago that caused an display flicker issue. The advice at the time was to refer to the serial number of the PLC, located on the box or on the sticker. ...
Industrial Automation icon_circle HVAC and Pumping Forum
875 0 7
Latest Reply: FedericoM

Solved
obscuresc
Lieutenant obscuresc

M172* structured text version control using git

Hi, I have been using git for version control when developing M172PDG18R software. I would like to be able to branch and merge versions. Here is my '.gitattributes' file, set so git can effectively d...
Industrial Automation icon_circle HVAC and Pumping Forum
885 0 5
Latest Reply: FedericoM

  • « Previous
    • 1
    • 2
    • 3
    • …
    • 33
  • Next »
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support

    Ask our Experts

    Have a question related to our products, solutions or services? Get quick support on community Forums

    Email Us

    For Community platform-related support, please email us

Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

Welcome!

Welcome to your new personalized space.

of

Explore