No hay artículos en el carro
No hay artículos en el carroSPECIFICATIONMaximum load: 10A/250V Power supply: DC 9V~36V LED for each relay output Power LED USB LEDWHAT'S IN THE PACKAGE1x 16-Channel USB Relay Module
Art Bowman
Comentado en los Estados Unidos el 13 de julio de 2024
Baud rate is 9600, no driver required for linux. The hex commands that worked for me are found athttps://s3.us-east-1.amazonaws.com/s3.image.smart/download/101-70-208/101-70-208.zipinside that zip file from the manufacturer is a pdf, 16CH_USB_Relay_Instruction-EN.pdf that has all the commands. Formatted terribly so I can't just simply paste it here.
James Richters
Comentado en los Estados Unidos el 27 de septiembre de 2023
No documentation came with this, but I managed to find enough information to get it to work on the SainSmart website. I wanted to use it to control some penumatic valves. I noticed that occasionally one of my commands would be ignored, and after some testing I found that there seems to be a flaw in its firmware that will cause it to miss commands if you give the commands too fast. This device is very slow anyway, it only seems to work at a baudrate of 9600 which is much slower than other USB relays. This would have been fine for my application as I only need to switch the valves every few minutes, but the problem is I need to issue a command to close one and open another back to back, and the only way I could get it to perform reliably was to put a rather long delay after every command, which made this useless for my application. I ended up using two separate 8 channel USB relays by a completely different manufacturer.
TC
Comentado en Canadá el 2 de agosto de 2021
Seems to work. Haven't connected anything to the relays or used the external power supply yet. Only got as far as writing a LabVIEW vi to control it.
James W. Luff
Comentado en los Estados Unidos el 29 de julio de 2021
I’ve only run some test on it because the project it goes in is still a work in progress. But it works fine. I downloaded the software and seems pretty straight forward. Looks like it’s going to be just what I needed.
Customer
Comentado en Canadá el 1 de marzo de 2021
Updated review: the board uses "Modbus ASCII" protocol. Knowing that makes the commands far less cryptic. The supplied documentaton (PDF and XLS) has errors in the checksums for channel 15-off, 16-on, 16-off. I got lucky and found the source code for Sainsmart's Windows app, and can confirm the device supports more Modbus functions than documented: 1 (read coils), 2 (read discrete inputs), 5 (write single coil), and 15 (write multiple coils).
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