You guys are awesome! I am Electrical and instrument engineer and I am learning a lot from your channel and it is helping me a lot in my career. Thank you so much!
Hi Avadh, thank you so much for taking the time and giving us your feedback. We're really glad to hear that you have found our videos helpful. Let us know if you have any questions or if we can be of further service.
Thanks a lot for your kind compliment! We are always extremely happy to hear such positive feedback! If you ever have any questions, feel free to reach out to us. Happy learning!
Hi there, glad to hear you found this video helpful. We use different PLC power supplies with different current outputs depending on the number of devices that we have in the PLC panel. The more modules that we have for the PLC, the more output current we need. So when there are a lot of PLC modules, we need to use a bigger power supply and when there are only a few PLC modules we can make use of a smaller power supply with less output current. Hope this answers your question. :)
Thanks a lot Realpars, making understand automation as easy......I have a question sir, In Siemens PLC , supposedly S7-400, has two supply voltages: 5V and 24V . What are they used for? Please reply, you people only can answer it appropriately.
Hi there, Some of Siemens power supplies such as PS405 for S7-400 Series CPUs have 24VDC as their "input" voltage, and 5 VDC as their "output" voltage. Let us know if you had further questions. Thanks
Nice Video! Is it possible to use 24V DC supply out from PLC to power HMI and electromagnetic flowmeter? Or I should use different DC Supply for the flowmeter? Thanks
It depends on the size of the power supply. For very small mag meters (0.25 inches to 0.75 inches in diameter), you may be able to use the PLC power supply or run the meter using loop power or the PLC power supply. Even if you can use the same power supply, I do not recommend it. Most short circuits, over-amperage situations, and power fluctuations (a mag meter is an inductive load) occur with connected devices. It is good practice to separate PLC power from device power to keep a faulty device from taking down the power supply to the PLC.
How often is the PLC power supply used to supply input switches or outputs such as solenoids ? I know they can have a separate supplies but just wondering whats normal out there
PLC digital input and output cards require a separate, or isolated power circuit, whenever the required power to the card can exceed the rated power of the PLC chassis or backplane power supply. For instance, a typical low-power, transistor-based input or output card with 8 points and a total maximum output amperage of 0.50A, will likely be able to draw the required power from the PLC chassis backplane. A higher-powered 8-point relay digital output card used to pull in small motor starters will probably require much more power than can be delivered by the PLC chassis, so an external power supply will be required. Also, for isolated input and output cards, an external power supply is required. In my 38 years of experience, about 1/2 of the digital input and output cards I have designed and/or installed (1000's) are on external power circuits.
The two main reasons are that 24VDC is much safer than 120VAC, and the electronics used for PLC hardware is all designed around VDC. 24VDC Power Suppliers are inexpensive and provide the basis for all typical control system hardware: 24VDC for powering transmitters, analog loops, positioners, etc.; 12VDC for specialty modules and some analytical equipment; 0-10VDC for some analog inputs, 5VDC for PLC card backplanes and electronic circuits.
Love and respect from Bangladesh. I am not an engineer, but i have a lot of curiosity about automation system. I want to build career in automation system. Currently i am working as a electrician in Bangladesh. I like your channel, Respect your team. Please sir help me for build my career. I will wait for your feedback. Take care....
Hi Mahadi, Thanks for reaching out! Great to hear your motivation and support. You might want to have a browse around our course library, as I am sure this is of interest. bit.ly/30AVJaR Just to let you know, that we also have a free course on PLC Hardware bit.ly/2XnnUrF Happy learning!
@@realpars I canceled my subscription after one year, yet I have been debited for another 1 year. Can this be reversed? I want to subscribe at my convenience since I'm currently so busy with work
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You guys are awesome! I am Electrical and instrument engineer and I am learning a lot from your channel and it is helping me a lot in my career. Thank you so much!
Hi Avadh, thank you so much for taking the time and giving us your feedback. We're really glad to hear that you have found our videos helpful. Let us know if you have any questions or if we can be of further service.
so far the most informative and easy to grasp videos about automation industry I've ever watched. I"ll definitely recommend to my colleagues.
Thanks a lot for your kind compliment! We are always extremely happy to hear such positive feedback! If you ever have any questions, feel free to reach out to us.
Happy learning!
Realpars: Great content! Concise and detailed. Will buy PLC programming modules soon!
Thanks for your support, Joseph! Great to hear that.
Let us know if you have any questions.
Lots of thanks for your channel ,from iraq 🇮🇶
Every day something new, usefull, interesting ... and funny
It is very useful. Thank you very much!
Glad to hear that!
You are a great teacher , thank you
Thanks for your comment! Happy to hear that.
amazing tutorial videos...❤
Thank you so much!
Thank you.
You're welcome!
we are getting relevant information from this channel
thank you sir for such best videos
your explanation is best
Very glad to hear that Moysin. :)
Does the choice in Amps depends also on the devices we connect to the IO modules? Sensors, valves, lights etc.
please make videos about siemens communicqtion procces and the decentralised periphiques
Great vid again, love the format of all of your vids.
Small bite size facts easier to remember. 🐵
Great to hear that! Thanks for sharing your positive feedback with us, Charlie!
Let us know if you have any questions along the way.
Happy learning!
Thanks a lot... Really this video helps a lot for me. But I have one doubt, why PLC differ in Ampere rating.. Can you explain why??
Hi there, glad to hear you found this video helpful.
We use different PLC power supplies with different current outputs depending on the number of devices that we have in the PLC panel.
The more modules that we have for the PLC, the more output current we need.
So when there are a lot of PLC modules, we need to use a bigger power supply and when there are only a few PLC modules we can make use of a smaller power supply with less output current.
Hope this answers your question. :)
Great video again
Glad you enjoyed it!
Thanks a lot Realpars, making understand automation as easy......I have a question sir, In Siemens PLC , supposedly S7-400, has two supply voltages: 5V and 24V . What are they used for? Please reply, you people only can answer it appropriately.
Hi there,
Some of Siemens power supplies such as PS405 for S7-400 Series CPUs have 24VDC as their "input" voltage, and 5 VDC as their "output" voltage.
Let us know if you had further questions.
Thanks
Is this output of 5V supplied to input/output cards?
good video! thanks
Wow man nice video bro really good
Nice Video! Is it possible to use 24V DC supply out from PLC to power HMI and electromagnetic flowmeter? Or I should use different DC Supply for the flowmeter? Thanks
It depends on the size of the power supply. For very small mag meters (0.25 inches to 0.75 inches in diameter), you may be able to use the PLC power supply or run the meter using loop power or the PLC power supply. Even if you can use the same power supply, I do not recommend it. Most short circuits, over-amperage situations, and power fluctuations (a mag meter is an inductive load) occur with connected devices. It is good practice to separate PLC power from device power to keep a faulty device from taking down the power supply to the PLC.
Very good! Thank you
Great! You are very welcome.
great videos
Thank you!
tnx a lot
You are most welcome!
How often is the PLC power supply used to supply input switches or outputs such as solenoids ? I know they can have a separate supplies but just wondering whats normal out there
PLC digital input and output cards require a separate, or isolated power circuit, whenever the required power to the card can exceed the rated power of the PLC chassis or backplane power supply. For instance, a typical low-power, transistor-based input or output card with 8 points and a total maximum output amperage of 0.50A, will likely be able to draw the required power from the PLC chassis backplane. A higher-powered 8-point relay digital output card used to pull in small motor starters will probably require much more power than can be delivered by the PLC chassis, so an external power supply will be required. Also, for isolated input and output cards, an external power supply is required. In my 38 years of experience, about 1/2 of the digital input and output cards I have designed and/or installed (1000's) are on external power circuits.
Thanks for your detailed response. It is very interesting info.
Nice, thank you !
You're very welcome!
I’m new
What is rack? And when we use it? Please
Thank you
Rack is the local that install the PLC modules.
A rack is like a DIN Rail where the PLC Modules are mounted. And please don't ask me what a DIN Rail is. Let google be your friend :)
Really great!
Thanks a lot, Ruben!
thanks we want to know some real practical things
I have a doubt, real pars. Why we use 24v for most of the plc?
The two main reasons are that 24VDC is much safer than 120VAC, and the electronics used for PLC hardware is all designed around VDC. 24VDC Power Suppliers are inexpensive and provide the basis for all typical control system hardware: 24VDC for powering transmitters, analog loops, positioners, etc.; 12VDC for specialty modules and some analytical equipment; 0-10VDC for some analog inputs, 5VDC for PLC card backplanes and electronic circuits.
Thanks for sharing.
Thanks sir
You're very welcome!
Classification of simense plc.
Love and respect from Bangladesh. I am not an engineer, but i have a lot of curiosity about automation system. I want to build career in automation system. Currently i am working as a electrician in Bangladesh. I like your channel, Respect your team. Please sir help me for build my career. I will wait for your feedback.
Take care....
Hi Mahadi,
Thanks for reaching out!
Great to hear your motivation and support. You might want to have a browse around our course library, as I am sure this is of interest. bit.ly/30AVJaR
Just to let you know, that we also have a free course on PLC Hardware bit.ly/2XnnUrF
Happy learning!
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@@realpars I canceled my subscription after one year, yet I have been debited for another 1 year.
Can this be reversed?
I want to subscribe at my convenience since I'm currently so busy with work
nice
we are getting relevant information from this channel
Great to hear that, Ibrahim! Thanks for sharing your positive feedback with us!