Welcome to the new Schneider Electric Community

It's your place to connect with experts and peers, get continuous support, and share knowledge.

Close
Important Announcement: WELCOME to the new Schneider Electric Community! Community is now no longer part of Exchange, and is now rebranded under se.com. If you have any bookmarks and links saved, we request you to update them to ensure that you continue accessing our community from this new location. For any issues that you might encounter as part of this change, please reach out to SchneiderCommunity.Support@se.com, and the team will help to get your issues resolved.
Invite a Co-worker
Send a co-worker an invite to the Exchange portal.Just enter their email address and we’ll connect them to register. After joining, they will belong to the same company.
Send Invite Cancel
82532members
350137posts

USB to serial adapter

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.

Solved
welbeck_apc
Crewman
Crewman
0 Likes
21
1513

USB to serial adapter

This was originally posted on APC forums on 6/4/2013


Hi, Hope someone can help. Last year we bought an APC Sc1000 SMART-UPS which shipped with a serial to USB cable (part no: 940-0272A). Upon launching Powerchute business edition 8.0.1.609 I cannot seem to establish a connection? Our other 15 or so Smart-UPS devices have a USB interface as opposed to a serial interface and work fine with said agent.

I have read that USB to serial may not work with some models (although the cable shipped with the device)? I have also reinstalled PCBE and disabled auto detect and specified Smart-UPS and com port 8 but no joy.

Serial number of Smart-UPS in question is 5S1139T13368. I have read that serial to serial (940-0024) should work. Would APC really ship a USB to serial cable if it wasn't compatible?

Michael


Accepted Solutions
BillP
Administrator Administrator
Administrator
0 Likes
0
1513

Re: USB to serial adapter

This reply was originally posted by Alexey on APC forums on 9/29/2020


Hi Bill,

thanks for the response. I have connected the SC1500 to Windows 10 (with PCBE 10.0.1 x64) and also to Unraid using 940-0024 and COM-port on my motherboard.

The initial problem was cased by the Prolific 2303 cable, which came with the device. It did not function with any OS. I also tried the newer versions of Prolific adapters and they also work just fine.

The SC1500 shows wrong temperature in the PCBE (only 2 degrees Celcius). I thought that update of the FW (e.g. to the available PowerNet MIB v4.3.2) would help, but neither Firmware Upgrade Wizard v4.2.0 nor v4.1.1 does find the device on COM port. I stopped the APC service and also tried that by complete uninstalling PCBE. Nothing helped.  Is there another way to upgrade the FW?

Thanks in advance

See Answer In Context

21 Replies 21
BillP
Administrator Administrator
Administrator
0 Likes
0
1513

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


Well, to begin, 9.1 PowerChute Business Edition is the latest version. Not sure if you want to use that instead of 8.0.1.

Also, the USB to serial adapter requires a driver by Prolific - have you installed this? Do you see the device listed in device manager (assuming this is Windows)? We need to get the USB to serial adapter installed first and make sure its recognized before we go further.

welbeck_apc
Crewman
Crewman
0 Likes
0
1513

Re: USB to serial adapter

This was originally posted on APC forums on 6/4/2013


The prolific driver has been installed both from the supplied cd and from Prolific website using PCI VEN and ID. The port shows up as Com port 8,9 or 10 depending on what USB port is used which is why i configured PCBE to use com port 8. Can Powerchute 9.1 ne downloaded freely? I assumed it was licenced software.

BillP
Administrator Administrator
Administrator
0 Likes
0
1513

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


Yup - 9.1 five node is free.

welbeck_apc
Crewman
Crewman
0 Likes
0
1513

Re: USB to serial adapter

This was originally posted on APC forums on 6/4/2013


Cheers - I'll try 9.1 now

BillP
Administrator Administrator
Administrator
0 Likes
0
1513

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


And just to confirm you have USB to serial adapter->940-0024 (which also comes with UPS)->UPS - correct?

welbeck_apc
Crewman
Crewman
0 Likes
0
1513

Re: USB to serial adapter

This was originally posted on APC forums on 6/4/2013


Not correct - We were supplied with USB to serial->940-0272A

BillP
Administrator Administrator
Administrator
0 Likes
0
1513

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


An SC1000 (Smart UPS SC1000) should ship with the USB to serial adapter (SKU AP9827 or part # 940-0272A) AND the 940-0024 incase you wanted to use serial communications with it.

Thus, you need to convert the DB-9 serial connection on the back of the UPS to USB.

Here is the rear of the UPS:

http://www.apcmedia.com/resource/images/500/Back/3A1D224C-5056-9170-D3143886A7288BF6_pr.jpg

So, connect the included 940-0024 to the DB-9 serial port on the back of the UPS shown above, then connect the DB-9 end of the 940-0272A to the other end, then connect USB to your computer.

This 940-0272A is just a USB to serial adapter and does not do any of the signaling - just converting.

welbeck_apc
Crewman
Crewman
0 Likes
0
1514

Re: USB to serial adapter

This was originally posted on APC forums on 6/4/2013


Not sure we have that? its a male to female db9 you say?

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


It should've been included in your lit kit with the UPS. Part # is printed on one of the connectors. Make sure it is this one because a non-standard cable could turn the UPS off since there is a special pinout on this cable.

Looks like this (yes M to F) -> http://www.apcmedia.com/resource/images/500/Front_Left/940-0024fl.jpg

welbeck_apc
Crewman
Crewman
0 Likes
0
1514

Re: USB to serial adapter

This was originally posted on APC forums on 6/4/2013


What dya know - I found it in our server room sitting i a box amongst other bits! Now it'll work. I obviously did away with this 18 months ago as i thought the USB to serial would work alone - I had read that the cable uses a special pin out. Now smart signalling should work.

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


Let us know if you have any further issues smile

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/4/2013


Alrighty. Let me know what happens there. You can also verify everything still shows in Device Manager.

welbeck_apc
Crewman
Crewman
0 Likes
0
1514

Re: USB to serial adapter

This was originally posted on APC forums on 6/5/2013


It doesn't work!?

I have installed the Prolific to USB serial (currently using com port 6). I then installed PCBE agent 9.0.2, during installation it can't detect UPS presence so i choose DB9 and then it asks if i want to detect all ports (which fails). I then choose Smart-UPS as type and Com port 6 (fails), the basic signalling detects a BAck-UPS device.

It all fails miserably! Should i source a laptop with serial port and connect a standard DB9 cable to the 940-0024 cable and re-test?

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/5/2013


It might be helpful to also braindead the UPS and try again with the laptop. If you do that, it will just be UPS->940-0024->Laptop serial port (nothing else needed).

Braindeading the UPS resets the UPS communications which incase something is wrong on the UPS end, it should reset it. To do that, you need to disconnect everything (including serial cable), and then turn off and disconnect any load. Then, turn off the UPS and unplug it. For this UPS, then you have to disconnect the battery on it and you can hold down the off button for 10-15 seconds so we can discharge the UPS completely and ultimately do the braindead. Alternatively, you can leave the battery disconnected for 8-10 minutes and it will happen as well.

welbeck_apc
Crewman
Crewman
0 Likes
0
1514

Re: USB to serial adapter

This was originally posted on APC forums on 6/5/2013


So we disconnect everything and then drain any residual power from the device. Shouls i use the USB to serial cable afterwards then?

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Angela on APC forums on 6/5/2013


Well if you are going to use the laptop with a serial port on it just to be able to test another computer via serial only, I'd do that first (UPS->940-0024->laptop serial port. If you don't have that computer available or I misunderstood and it does not have a serial port on it, then do UPS->940-0024->940-0272A->Computer again.

welbeck_apc
Crewman
Crewman
0 Likes
0
1514

Re: USB to serial adapter

This was originally posted on APC forums on 7/25/2013


Hi - Just managed to test the UPS following the 'braindead' procedure but no joy! I need to test using a laptop with serial port connection i imagine.

welbeck_apc
Crewman
Crewman
0 Likes
0
1514

Re: USB to serial adapter

This was originally posted on APC forums on 6/4/2013


Hmmmmm, i still cannot seem to establish a connection? I may try and re-install PCBE 9.1 from scratch as i turned off auto detect when re-installing 8.0.1and then updated to version 9.1

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Alexey on APC forums on 9/16/2020


Hi ICT, 

have you managed to get the PCBE working with your SC1000?

I  got recently new old stock SC1500 and I have the same issue. Tried everything like you did and nothing helped so far.

Tags (1)
BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Bill on APC forums on 9/28/2020


Hi,

That UPS has a serial port for communications with PCBE. You will need APC serial cable 940-0024 or 940-1524. If your computer does not have a serial port you will need a USB to serial converter.

As for PCBE, what version are you installing, and do you have a terminal emulator available to test comm with? I user PuTTY to test serial comm. 

BillP
Administrator Administrator
Administrator
0 Likes
0
1514

Re: USB to serial adapter

This reply was originally posted by Alexey on APC forums on 9/29/2020


Hi Bill,

thanks for the response. I have connected the SC1500 to Windows 10 (with PCBE 10.0.1 x64) and also to Unraid using 940-0024 and COM-port on my motherboard.

The initial problem was cased by the Prolific 2303 cable, which came with the device. It did not function with any OS. I also tried the newer versions of Prolific adapters and they also work just fine.

The SC1500 shows wrong temperature in the PCBE (only 2 degrees Celcius). I thought that update of the FW (e.g. to the available PowerNet MIB v4.3.2) would help, but neither Firmware Upgrade Wizard v4.2.0 nor v4.1.1 does find the device on COM port. I stopped the APC service and also tried that by complete uninstalling PCBE. Nothing helped.  Is there another way to upgrade the FW?

Thanks in advance