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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 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
Kunal_ch
/html/rank_icons/Crewman.png Kunal_ch

TM172PDG18R screen sporadically going blank.

Hi, We've been using TM172PDG18R controllers in our products for a couple of years now, however within these last couple of months (recent installations) we have received around 7 complaints from the f...
Industrial Automation icon_circle HVAC and Pumping Forum
737 0 3
Latest Reply: Bastian_Schmitz

Solved
LibertyJ
LibertyJ

TM172 DCLWT Communication with TM 172 PLC

Hello everyone. I am able to connect a TM172 PLC with a TM172 DCLWT and send set points to the PLC from the display but the write coils modbus function which I want to use to write data to the coil reg...
Industrial Automation icon_circle HVAC and Pumping Forum
405 0 1
Latest Reply: Bastian_Schmitz

Solved
otrotabi
/html/rank_icons/Commander.png otrotabi

Analog output type

Rookie question: analog outputs at least for TM172 series are either 0-10VCC , 4-20 ma , PWM or ON-OFF. So why is the type INT ? And what happens if output is set to i.e. -5.3 VCC ?
Industrial Automation icon_circle HVAC and Pumping Forum
470 0 2
Latest Reply: otrotabi

Solved
kryunl
/html/rank_icons/Crewman.png kryunl

m172 plc system bits

I need to activate the bit when the power is cut off and comes back on in the M172 plc. Is there such a system bit in the M172 plc? I would be very happy if you could help.
Industrial Automation icon_circle HVAC and Pumping Forum
319 0 1
Latest Reply: FedericoM

Solved
obscuresc
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M172* downloading application code faster

Hi, I am developing an application on a TM172PDG18R. Updating only the main application (~500KB, using the 'Download PLC Code' button) takes over a minute on Modbus TCP with a direct connection from ...
Industrial Automation icon_circle HVAC and Pumping Forum
1220 0 7
Latest Reply: obscuresc

Solved
devinsynthesissolutions
/html/rank_icons/Crewman.png devinsynthesissolutions

BACnet Binary Value/Input on M172 PLC

I need to share values from my PLC over BACnet and I have the analog working as I imported the "AI" template, but there is no template for "BI", only "BV". When I try to change from BV to BI the drop d...
Industrial Automation icon_circle HVAC and Pumping Forum
429 0 1
Latest Reply: Bastian_Schmitz

Solved
kryunl
/html/rank_icons/Crewman.png kryunl

M172 plc system bit

I need to activate the bit when the power is cut off and comes back on in the M172 plc. Is there such a system bit in the M172 plc? I would be very happy if you could help.
Industrial Automation icon_circle HVAC and Pumping Forum
384 0 1
Latest Reply: ismailozinan

Solved
otrotabi
/html/rank_icons/Commander.png otrotabi

Fan management - variable speed and fixed speed fans

When using compressor racks with both variable speed and fixed speed compressors - which is the most used scenario- the CompMgmtVS FB has the built in logic to handle this setup. A similar setup is ...
Industrial Automation icon_circle HVAC and Pumping Forum
392 0 1
Latest Reply: FedericoM

Solved
cloud_74
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M172 - Logger and String Libraries

Hi, Does anyone know where I can get a copy of the String and Logger libraries for EcoStuxure HVAC?
Industrial Automation icon_circle HVAC and Pumping Forum
2236 1 5
Latest Reply: RichardGiesbrecht

Solved
Fanar_Ref
Fanar_Ref

M172 with HMIET6400x

Hello!I have a M172P 42I/O controller along with HMIET6400x. I want to simulate both plc and hmi to check data flow since I have no access to controller and HMI. The PLC when simulated runs TCPIP in lo...
Industrial Automation icon_circle HVAC and Pumping Forum
606 0 3
Latest Reply: Fanar_Ref

Solved
devinsynthesissolutions
/html/rank_icons/Crewman.png devinsynthesissolutions

ERROR generating IEC code for HMI

I started a project with a M172 PLC and a M172DCL Display using Modbus. I don't have the hardware yet but I have the project almost built. I keep receiving the below error when attempting to compile. I...
Industrial Automation icon_circle HVAC and Pumping Forum
532 0 2
Latest Reply: devinsynthesissolutions

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