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Modbus 32int variable to KNX address

Claudio Lauriola 1 year ago in Devices / Modbus updated 1 year ago 1

Hi,

I need to export a modbus variable (Integer 32 bit signed) to KNX address. 

Unfortunately none of 4 byte KNX objects (signed, unsigned, float) can be link to that modbus variable. Have you any suggestion please?

Thanks.

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MODBUS: DEVICE LOST CONNECTION

Claudio Lauriola 2 years ago in Devices / Modbus updated by Jürgen Jürgenson 2 years ago 3

Dear Sirs,

I am working on a Jigsaw Pro (for time for me) and I am integrating modbus TCP/IP - RTU gateway.

When same slave lost communication I can see the message on the app as red log but I would like to show it as variable in the theme. How can do that? I have seen that slave device has not the "connect" status to read.

Thank you for your help.

BR

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Modbus read value problem

Eduardo Rosa 2 years ago in Devices / Modbus updated 2 years ago 7

Dear

I am working on an energy measurement project for a customer, in which I intend to implement Comfortclick/bOS as the management system.

I have established a modbus connection between an energy measurement device from Finder and the bOS. I simultaneously noticed that the measurement (voltage, current and power) shown on the Finder display differs from the reading obtained by the bOS which is slightly higher.

Settings:

Connection Type: Serial

Serial Transmission Mode: RTU

Low Word First: False

Low Byte First: False

Data Format: LittleEndian

Write Function Type: WriteSingle

Read Function Type: ReadSingle

Modbus Table: InputRegisters

Data Format: Signed32Bit (to power) and Unsigned32Bit (to voltage and current)

Scale Factor: 1

Use Status Address: False

Readcyclically: True

Please, could you help me with the configuration in order to get the correct reading?

Thanks,

Eduardo

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Modbus relay

Ohmin1970 2 years ago in Devices / Modbus 0

Need some help. I have a modbus relay and to turn on and off I have to write FF 00 for on and 00 00 for off to the relay with function code 5 (Write to single relay) how do I do it in jigsaw? Byte 1 adress byte 2 function code byte 3 4 adress of register (big-endian) byte 5 6 data of register (big-endian).

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how to connect modbus analyzer 4 wire to a comfort click modbus dongle 2 wire?

Oti Dénia 2 years ago in Devices / Modbus updated by Fredrik Johansson 2 years ago 1

I need to integrate the measures of a Carlo Gavazzi WM12, but this has 4 wire connection.
Can you help me?
Thanks in advance.

WM12 CP v1r1 ENG 0903.pdf

WM12-DIN-96 IM ENG 0902.pdf
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Bad communication between Jigsaw and MIM-B19N (MODBUS SAMSUNG)

Jose Jiménez 2 years ago in Devices / Modbus updated by Costel Miron 2 years ago 4

Hi everyone,

i have a jigsaw connected to a Modbus interface module MIM-B19N Samsung. I have the next parameters:

Image 3875

I attach the datasheet of this module to compare if you need:  Manual Interface MODBUS Maquinas clima Samsung.pdf


The question is that some times, randomly, the communication breaks down and we can control any of indoor units we have. In addition, i attach a screenshot of Jigsaw's logs:


Image 3877

I don't know if the problem is because of driver's parameters or firmware error. I will appreciate any help .

Thanks

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UART

Juan Tomasetti 3 years ago in Devices / Modbus updated by Andrew Watson 3 years ago 7

Hello.

I have a Grinder module, and I would like to connect a Solar Inverter via UART. In the Grinder module, I have connected the CP2102 adapter to the USB port, bOs recognizes it perfectly in the COM3 port. According to the solar inverter documentation, the communication is UART, 115200bps, 8bits data, 1 stop bit, no parity. The COM3 port, so I have configured it. But I can't get a response from the inverter. I have tried all the combinations on the bos, but I cannot receive data. Any suggestion???

Thanks...

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Under review

Modbus devices with different properties in one bus.

Artem Kuteynikov 3 years ago in Devices / Modbus updated 3 years ago 2

Hello,

is it possible to communicate with devices in the same bus, which have different settings (for example: Low Word First)? Could Data settings of Modbus driver be implemented on Slave node?

And a possibility to disable any Slave (for commissioning or testing) so that server won`t see an error, would be convenient.

Thanks.

0
Answered

What is Modbus Network Capacity in NUC or JIGSAW?

Marco Antonio Fernandes 3 years ago in Devices / Modbus updated by ComfortClick Support 3 years ago 1

Good Morning!

I've been researching the Comfortclick website, but I have some doubts about Modbus.

Here are the questions below and also an outline of the basic concepts for Modbus RTC and TCP/IP:

1. Is there any difference in capacity between a NUC or JIGSAW?
2. Is there any difference in capacity between an RS-485 RTU or TCP/IP?
3. Is there any limitation or does bOS Comfortclick comply with the Modbus standard, ie up to 32 devices [without repeater] or 247 [with repeater]?
4. Is there the possibility of limitation by the manufacturer/device, having limited the amount of modbus addresses?
[As shown in the example on the Comfortclick page:
https://www.comfortclick.com/BOS/KnowledgeBase/Modbus]

Thanks!

Protocol Modbus.pdf

Image 3377

Answer
ComfortClick Support 3 years ago

Hello,

1. Regarding Modbus, there is no big difference, both servers could handle similar number of Modbus devices (but number of Modbus devices is not the key factor it is number of registers/data points) if it is a commercial project I recommend you to use at least Grinder Black or even better Sledgehammer, due to professional server features (e.g. full disk backup, remote control of server hardware through web interface...)

2. No difference.

3. bOS comply with Modbus standard so you can integrate maximum number of devices according to Modbus standard.

4. Do not fully understand last question.

Best regards