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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.

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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.



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HVAC and Pumping Forum

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BZ
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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
1012 2 0

2024-01-25

Solved
JokerPro
JokerPro

BACnet References

Hello, I would like to retrieve a BACnet value (PresentValue) from another BACnet controller. How can I create a BACnet reference? e.g.: for [178150][5,2] (Device)(Bin.-Val.,2). - on a TM172PDG18R - wi...
Industrial Automation icon_circle HVAC and Pumping Forum
373 0 1
Latest Reply: FedericoM

Solved
Conair_Ian
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Profibus to M172

I am wondering if anyone can point me in the correct direction here in regards to an upcoming project. I will have 3 Sabroe refrigeration compressor controllers (Unisab 2) that communicate together on ...
Industrial Automation icon_circle HVAC and Pumping Forum
871 0 3
Latest Reply: FedericoM

Informational
FedericoM
/html/rank_icons/Captain.png FedericoM /html/rank_icons/SE-Employee.png

Annoucement : Forum is relaunching with a new name

Dear Community Members, We are excited to announce that the Forum is relaunching with a new name: HVAC & Pumping Forum. This change reflects our commitment to better serve your needs and provide ...
Industrial Automation icon_circle HVAC and Pumping Forum
395 3 0

2025-03-28

Solved
dawiddb9
/html/rank_icons/Lieutenant.png dawiddb9 /html/rank_icons/EcoXpertMasterLeaf.png

M172 - Password to settings on embedded display

Hello, I would like to make some settings pages on M172 embedded display to which user gain acces after entering correct password and after 5 minutes of idle state it would log off/go to main page. I...
Industrial Automation icon_circle HVAC and Pumping Forum
1898 0 5
Latest Reply: neonguyen

Solved
StevenCho
/html/rank_icons/Lieutenant_JG.png StevenCho

M172 Communication module option

Hi all, Is there no option to add Modbus master on M172? When I add RS485 Plug-in and set it to master, the following error is occured. "ERROR: (BuildCfg_RS485) Too many Modbus RTU masters: only ...
Industrial Automation icon_circle HVAC and Pumping Forum
967 0 3
Latest Reply: StevenCho

Solved
pawel_kowalski_
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PLC M2XX and HMI with BACnet

Hi, I have two questions: Is it possible to run the BACnet protocol on any of the 2XX series PLCs? If so, how can this be done? Do any of the HMI panels support BACnet? Thanks in advance for your ...
Industrial Automation icon_circle HVAC and Pumping Forum
565 0 1
Latest Reply: Bastian_Schmitz

Solved
obscuresc
/html/rank_icons/Lieutenant.png obscuresc

M172* having the IEC code detect if the code is running in simulation

Hi, I have mostly been testing using PLC hardware and would like to speed up the process by testing in simulation. Is there a way that I can have the PLC code detect that it is running in simulation?...
Industrial Automation icon_circle HVAC and Pumping Forum
415 0 1
Latest Reply: M_Cervati

Solved
otrotabi
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EEPROM variable resetting after power loss

I have just received a TM172PDG18S which has been working well so far for a couple of years. I am asking this question before I connect it to my laptop, in case anyone has a suggestion before I do and...
Industrial Automation icon_circle HVAC and Pumping Forum
633 0 2
Latest Reply: otrotabi

Solved
js123
/html/rank_icons/Crewman.png js123

Cannot change to hierarchical page model in EcoStruxure Machine Expert...

I cannot change from the default "Flat" page model to the "Hierarchical" page model. The software allows me to select the change, but nothing happens. I use the following procedure: 1. Create a new p...
Industrial Automation icon_circle HVAC and Pumping Forum
608 0 3
Latest Reply: js123

Solved
otrotabi
/html/rank_icons/Commander.png otrotabi

Best practices upgrading PLC program

This is the scenario. I have a working PLC and I want to add some new features. These new features require some new EEPROM variables and the variables which are present on the PLC may have been modifi...
Industrial Automation icon_circle HVAC and Pumping Forum
1052 0 3
Latest Reply: FedericoM

Solved
obscuresc
/html/rank_icons/Lieutenant.png obscuresc

M172* sys_FM_READ insufficient documentation

Hi, I’ve just been using 'sys_FM_READ' from the 'FS_IEC' library (version 1.0.0). The function seems to read up to the number of characters/bytes specified by the ‘len’ arg or up to the first linefee...
Industrial Automation icon_circle HVAC and Pumping Forum
778 0 3
Latest Reply: FedericoM

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