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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
1031 2 0

2024-01-25

Solved
kor
/html/rank_icons/Ensign.png kor

Machine Expert HVAC - problem with expansion modules variable list

On all workstation with ME HVAC we have, after upgrade from version 1.6 to 1.7 will arise a problem with access to possibility setup of expansion modules configuration variables. With all previous rele...
Industrial Automation icon_circle HVAC and Pumping Forum
2360 0 10
Latest Reply: FedericoM

Solved
RichB
/html/rank_icons/Crewman.png RichB

Machine Expert HVAC - Setting a BOOL from an HMI screen

Hello, I have (analog) variables configured in the "Programming" tab that are accessible, displayed and modified on the screens in "Display" tab, and these all work fine. I need to toggle a BOOL vari...
Industrial Automation icon_circle HVAC and Pumping Forum
381 0 4
Latest Reply: RichB

Solved
MacsEngineer
/html/rank_icons/Crewman.png MacsEngineer

How to set up time controlled operations on the M172?

I need to set up time controlled operations in a new program using the M172 PLC. We use Ewon Netbiter to give our clients an online system where they can set the date and time for when these operations...
Industrial Automation icon_circle HVAC and Pumping Forum
512 0 6
Latest Reply: MacsEngineer

Solved
neonguyen
/html/rank_icons/Crewman.png neonguyen

EcoStruxure Machine Expert HVAC - How to use "Disable IF NOT DEF"

I have a question regarding EcoStruxure Machine Expert HVAC software. When I right-click on a network and open Network properties window, there is section called "Disable IF NOT DEF". I am wondering ho...
Industrial Automation icon_circle HVAC and Pumping Forum
338 0 4
Latest Reply: neonguyen

Solved
obscuresc
/html/rank_icons/Lieutenant.png obscuresc

M172 unsigned int (UINT) casting during lesser than comparison

Hi, Under some software testing, I have observed that adding two UINTs and comparing with lesser than on a single line has different behaviour to the same code split to multiple lines. See below. ...
Industrial Automation icon_circle HVAC and Pumping Forum
238 0 2
Latest Reply: obscuresc

Solved
otrotabi
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sensors specs

There are very different types of temperature sensors listed on the hardware guide for TM172. Two questions: 1) what is the criteria to select NTC or PT1000 ? Range is the same for both types. 2)...
Industrial Automation icon_circle HVAC and Pumping Forum
384 0 2
Latest Reply: otrotabi

Solved
otrotabi
/html/rank_icons/Commander.png otrotabi

sensors specs

There are several different types of temperature sensors listed on the hardware guide for TM172. Two questions: 1) what is the criteria to select NTC or PT1000 ? Range is the same for both types....
Industrial Automation icon_circle HVAC and Pumping Forum
452 0 1
Latest Reply: FedericoM

Solved
obscuresc
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ESME HVAC - adding a 'prebuild commands' section to the project option...

Hi, I've previously asked for a feature to set register values after compilation in this post. A similar function could be added if there was a section in the Project Options to allow for 'prebuild'...
Industrial Automation icon_circle HVAC and Pumping Forum
417 0 5
Latest Reply: obscuresc

Solved
StevenCho
/html/rank_icons/Lieutenant_JG.png StevenCho

[ESME-HVAC] PROGRAM ERROR

Hi there 🙂 I'm getting an error in ESME HVAC v1.7.0 (Windows 11) when I copy and paste a Function Block. Is this a known issue? Thanks!
Industrial Automation icon_circle HVAC and Pumping Forum
350 0 3
Latest Reply: M_Cervati

Solved
cloud_74
/html/rank_icons/Crewman.png cloud_74

M172 Accessing data logging files through the Ethernet port

Hi, Is it possible to access the data logging files saved on the Micro SD card in the M172 through the Ethernet port? We are having some issues with a site and I would like to use the data logging ...
Industrial Automation icon_circle HVAC and Pumping Forum
268 0 2
Latest Reply: Bastian_Schmitz

Solved
cloud_74
/html/rank_icons/Crewman.png cloud_74

M172 BACnet MS/TP Wiring

Hi everyone, Is the BACnet wiring to a M172 a 3 wire or 2 wire system? My understanding is that needs to be a 3 wire system. If a wire BACnet system is used (no GS connected) would this cause commu...
Industrial Automation icon_circle HVAC and Pumping Forum
302 0 2
Latest Reply: Bastian_Schmitz

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