Hi, I am currently working on a project that involves multiple modules that do remote data acquisition. Those modules contain 4 analog inputs that are read using a 4 channel 24bit ADC. Those values are then transmitted to a PIC18F, and I am hoping on using the Particle Photon to send those values ov…

@hugo , there is no existing ModBus TCP library that I know of for the Photon. However, if you can find a suitable Arduino library, we can look at porting it. The Photon is a perfect product for your application, supporting both standard (TCP, UDP HTTP and now HTTPS) and Particle cloud protocols. …

Is the photon like the ESB8266, meaning that the MCU will communicate via its hardware UART interface with the Photon, only providing the content of the packet and the connection information, meaning the stack is photon side and not MCU side? If so, I found an arduino library that does ModBUS RTU t…

[image] peekay123: TCP, UDP HTTP and now HTTPS Https??? Really?

Here: [image] HTTPS client is here for the Photon! - by the glowfi.sh Team Hey Community, We have been working hard at glowfi.sh to deliver an HTTPS client for the Particle community and I am happy to say we are ready to release it thanks to all the work by glowfi.sh engineer @jersey99…

@hugo , the Photon uses a Broadcom BCM43362 wifi chip along with an STM32F205 processor. Broadcom’s WICED library (wifi stack) runs on the Photon as a set of tasks on FreeRTOS along with Photon’s own code for cloud and wiring support. Though WICED is a closed library (for now), the Photon code is o…

I have used the modbus tcp library for a couple projects from… http://myarduinoprojects.com/modbus.html Specifically… http://myarduinoprojects.com/download/MgsModbus-v0.1.1.zip It would be amazing if particle could have this ported as it would greatly shrink my projects…as it is…an arduino, ethe…

I noticed your indication that you folks could look at converting an existing library. I’m lead to believe the MgsModbus library works fine on Arduino. Any chance it would be considered for a port in the near future? There appears to be working Modbus library for the Arduino at: MyArduinoProject…

@ctmorrison , I started looking at that and got pulled onto something else. I’ll have to look again to see where I was! :flushed:

So…as I look further into Modbus TCP, I’m wondering if I can simply open a TCP connection to the destination IP at port 502 (using TCPClient). I could then simply write the string of characters required to read the register(s) I need from the target device. Then, simply sit there and read the byte…

Library for Modbus TCP

Firmware Libraries

bko October 14, 2015, 11:42am 5

Here:

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Library for Modbus TCP

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