Difference between revisions of "RDTech RD series"

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m (Gsi moved page Riden RD6006 to RDTech RD series: cover the series which the device is part of)
(turn RD6006 device page into RDTech RD series page, now supported)
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{{Infobox power supply
{{Infobox power supply
| image              = [[File:RD6006 frontpanel.png|180px]]
| image              = [[File:RD6006 frontpanel.png|180px]]
| name                = Riden RD6006
| name                = RDTech RD series
| status              = in progress
| status              = supported
| source_code_dir    = rdtech-dps
| source_code_dir    = rdtech-dps
| channels            = 1
| channels            = 1
| channel1            = 0-60V / 0-6/12/18A
| connectivity        = serial over USB/WiFi/TTL (3.3V)
| connectivity        = serial over USB/WiFi/TTL (3.3V)
| features            = programmable presets, values, output, over-(voltage,current,power) thresholds.  
| features            = programmable presets, values, output, over-(voltage,current,power) thresholds.  
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}}
}}


'''Please note: This page is a work in progress, more to come.'''
The HangZhou RuiDeng Technologies '''RDTech RD6000''' series consists of a range of DC to DC buck regulator modules which communicate by means of Modbus over serial.
 
{| border="0" style="width: 25em;" class="alternategrey sigroktable sortable"
|-
! style="width: 5em; text-align: left;" | Model
! style="width: 4em; text-align: left;" | Voltage
! style="width: 4em; text-align: left;" | Current
! style="width: 4em; text-align: left;" | Max Power
|-
| RD6006
| 0-60V
| 0-6A
| 360W
|-
| RD6012
| 0-60V
| 0-12A
| 720W
|-
| RD6018
| 0-60V
| 0-18A
| 1080W
|}
 
See [[RDTech RD series/Info]] for USB connection details.


== Hardware ==
== Hardware ==
[[File:rd6006_detail.jpg|512px]]
 
These modules are not complete power supplies which are ready for use out of the box. Instead the buck regulator modules are supposed to get supplied from an external source. Optional kits are available, cheap bricks or batteries are another use scenario, as is supplying several regulator modules from one common supply. Due to the buck configuration the input must be at least 1V above the desired output voltage. Or put differently the maximum output voltage is 1V below the input voltage.
 
The regulator module provides serial over USB (micro USB on the front panel) as well as TTL serial (internal pin header) for Modbus over serial communication. WLAN to serial modules (ESP based) are available as an option for these internal pin headers.
 
WLAN access is currently not supported by the sigrok driver. Its operation is yet to get determined, it's yet to be seen whether this "feels" like a serial cable or can disguise as one. The mobile phone app is unusual in that the WLAN module(!) acts as an access point and the app connects to the entity which provided the station's properties. :-O The details of this network communication are yet to get determined before support can get implemented. Alternative firmware for the ESP module exists which happens to also run "the UI" on that module, which radically differs from the mere Modbus relay mode. When ESP firmware would become available which merely relays serial payload data while its network address is known then sigrok support would be transparent.
 
=== Hardware details (MCU section) ===


* MCU: STM32F103
* MCU: STM32F103
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}}
}}
</small>
</small>
== Photos ==
<gallery>
File:RD6006 frontpanel.png|180px|<small>front</small>
File:rd6006_detail.jpg|512px|<small>pcb, mcu part</small>
</gallery>


== Protocol ==
== Protocol ==


Modbus RTU ([https://en.wikipedia.org/wiki/Modbus#Frame_formats Wikipedia]).
The protocol is similar to the [[RDTech DPS series]], which is why a common sigrok driver handles either variant. The bitrate defaults to 115200, the register layout (addresses) and register value presentation (endianess) differ. But the interpretation of registers which have the same meaning among DPS and RD is identical, as is anything above the logical interpretation of register content.
 
(older notes below, TODO adjust or combine them with the above text)
 
Serial baudrate defaults to 115200/8n1 and Modbus slave address defaults to 1. Both can be changed in the main menu at any time. There is also an option using WiFi instead of USB/Serial, which uses a fixed Baudrate of 115200/8n1.
Serial baudrate defaults to 115200/8n1 and Modbus slave address defaults to 1. Both can be changed in the main menu at any time. There is also an option using WiFi instead of USB/Serial, which uses a fixed Baudrate of 115200/8n1.
Also see the [[RDTech_DPS_series]] page. External sources exist which combine communication to DPS as well as UM as well as RD devices in a single project. Protocols may be similar enough to make a common driver desirable.


== Resources ==
== Resources ==

Revision as of 10:14, 1 May 2021

RDTech RD series
RD6006 frontpanel.png
Status supported
Source code rdtech-dps
Channels 1
Voltage/current (CH1) 0-60V / 0-6/12/18A
Connectivity serial over USB/WiFi/TTL (3.3V)
Features programmable presets, values, output, over-(voltage,current,power) thresholds.

The HangZhou RuiDeng Technologies RDTech RD6000 series consists of a range of DC to DC buck regulator modules which communicate by means of Modbus over serial.

Model Voltage Current Max Power
RD6006 0-60V 0-6A 360W
RD6012 0-60V 0-12A 720W
RD6018 0-60V 0-18A 1080W

See RDTech RD series/Info for USB connection details.

Hardware

These modules are not complete power supplies which are ready for use out of the box. Instead the buck regulator modules are supposed to get supplied from an external source. Optional kits are available, cheap bricks or batteries are another use scenario, as is supplying several regulator modules from one common supply. Due to the buck configuration the input must be at least 1V above the desired output voltage. Or put differently the maximum output voltage is 1V below the input voltage.

The regulator module provides serial over USB (micro USB on the front panel) as well as TTL serial (internal pin header) for Modbus over serial communication. WLAN to serial modules (ESP based) are available as an option for these internal pin headers.

WLAN access is currently not supported by the sigrok driver. Its operation is yet to get determined, it's yet to be seen whether this "feels" like a serial cable or can disguise as one. The mobile phone app is unusual in that the WLAN module(!) acts as an access point and the app connects to the entity which provided the station's properties. :-O The details of this network communication are yet to get determined before support can get implemented. Alternative firmware for the ESP module exists which happens to also run "the UI" on that module, which radically differs from the mere Modbus relay mode. When ESP firmware would become available which merely relays serial payload data while its network address is known then sigrok support would be transparent.

Hardware details (MCU section)

  • MCU: STM32F103
  • U13: 2Pai Semi π122U31 Dual channel digital isolator
  • U12: Gainsil GS8332 Dual Op-Amp
  • U11: Winchiphead CH340E USB to serial
  • U8: Winbond W25Q32JV 32MBit (4MB) SPI Flash
  • U6: Fujitsu MB85RC04V 4KBit (512B) FRAM
  • U1: Titan Micro TM1650 LED Driver
  • U5/U0: M5333B? 3.3V regulator?
  • LCD: Z240IT010 2.4" 240x320 TFT panel (ILI9341, 18pin connector, 0.8mm spacing, SPI serial)

J2 Connector Pinout:

VDD 1-   O -8
BOOT0 2- -7
GND 3- -6
PA14 (SWCLK) 4- -5 PA13 (SWDIO)

WiFi Header Pinout::

NC 1-   O -8 VCC
3.3V 2- -7 RXD (PA10 / UART1 RXD)
(PA6) EN 3- -6 TXD (PA9 / UART1 TXD)
GND 4- -5 NC

Photos

  • front

  • pcb, mcu part

Protocol

The protocol is similar to the RDTech DPS series, which is why a common sigrok driver handles either variant. The bitrate defaults to 115200, the register layout (addresses) and register value presentation (endianess) differ. But the interpretation of registers which have the same meaning among DPS and RD is identical, as is anything above the logical interpretation of register content.

(older notes below, TODO adjust or combine them with the above text)

Serial baudrate defaults to 115200/8n1 and Modbus slave address defaults to 1. Both can be changed in the main menu at any time. There is also an option using WiFi instead of USB/Serial, which uses a fixed Baudrate of 115200/8n1.

Resources

See also

Retrieved from "https://sigrok.org/w/index.php?title=RDTech_RD_series&oldid=16107"