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+2 votes
2,399 views 20 comments
by
Hello,

where can we find the modbus register list for TRB141. Some registers used in RUT240/RUT9xx can be read also from TRB141 but none of the registers who handle the inputs/outputs works. Since the product was already launched i was expecting to find a well written manual for it. Teltonika when do you think that the full manual will be available to us, the humble users who already paid for a product which can't be used as advertised???
by anonymous
Almost 4 months passed without any updates. This looks more and more like a marketing stunt, writing false things in the datasheet. Shame on you Teltonika!
by anonymous

There is a statement in the Input/Output wiki page regarding the possibility to configure the Analog input either as voltage input or miliamp input. "A is ADC input. Analog voltage range 0 - 30 V. Input can be configured for 4-20mA sensor protocol as current measurement of 0 - 30 mA." Where can you configure the output because i was unable to find any option to configure it.

3 Answers

0 votes
by anonymous
Hello,

We are really sorry for the inconveniences. This feature for TRB devices is still under development and some Modbus commands are not yet available for these, but those will be added in future updates.
by anonymous

my main interest is to move forward so can you at least share the with us the registers which already work in order to allow us to test the working features?

For example which are the registers who will allow us to read the status of the two digital inputs, DI1 and DI2? They work, I mean I'm able to see them in the web interface but without the right register and the amount of data which should be read it's impossible to use them.
Same question for the two relay outputs.

Last but not least the analog input which was advertised being capable of reading sensors which will output 4-20mA will have a scale algorithm in the TRB or will output directly the current value, scaling being done in the modbus master host.

In my opinion these are key features for your product, key features which do not work at the moment and I'm sure that many of us are waiting for them.

Maybe we can speak directly with someone from the R&D in order to tell them which features are useful for such a device which eliminate the need of an PLC + Analog Input module on site. For example up to this moment we were using a RUT240 + PLC + AI Module to read a analog level sensor. I was hoping that this unit will be able to replace the entire setup RUT240+PLC+AI Module and give me the same feedback.

In the past we commissioned over 40 electrical panels like this one, having big dimensions 400x600x250mm just to accommodate the setup mentioned before. I was hoping that TRB141 will change a lot of things but in order to do that you should listen also to us the customers who purchased units just to test them.

by anonymous
Feel free to put the requirements here in the comment. These will reach the R&D.
by anonymous

1. Analog input scaling

It would be a very nice feature for TRB141 the possibility to scale the analog input in engineering units. For example let's take a pressure sensor with 4-20mA output and 0-10bar as engineering units range. I would like to see the possibility to type the low engineering units range for 4mA and the high engineering units range for 20mA. Based on a simple formula the conversion being calculated on the TRB141 and read the actual engineering unit value from one particular register. The Analog value 0-8191 in this screenshot depends on the analog input hardware and may be different from one analog module to another due to resolution (precision).

2. Modbus functions

Possibility to use function code 1 & 2 for reading coils and discrete inputs and 5 together with 15 to write single/multiple coils. The coils will control both the relay outputs and the configurable outputs on the power connector if they are configured as outputs. In case they are configured as inputs function code 2 will be used to read them. This behaviour is a normal PLC behaviour where different function codes can be used to perform read/write tasks.

by
Any updates? Or at least an approximate date when the inputs/outputs will work with modbus?
by anonymous
Hello,

Our R&D department is already informed. They will implement this feature in one of the future updates. Sadly we can't tell the exact date.
by
Back again. Installed the new firmware which was released and i'm wondering if this firmware contains any improvements regarding the modbus part. Maybe the digital inputs/outputs are connected if not the 4-20mA input? Any ideas any useful info?
by
Any updates?
by anonymous
Hello,

Currently our RND team is working on that, sadly I don't have any more news.
by
Could some give me an advice how to read/get  the current  voltagre input  level?  In the WebUI I could not find any entry.  I wan't to connect a 4..20mA Sendor and I have no idea how to read the ADC values.
by anonymous

Hello,

Here is the full list of I/O port names:

ioman.acl.acl0
ioman.adc.adc0
ioman.dwi.dwi0
ioman.dwi.dwi1
ioman.gpio.dio0
ioman.gpio.dio1
ioman.gpio.iio
ioman.gpio.onewire
ioman.relay.relay0
ioman.relay.relay1

You can read data by writing: ubus call name status

For example: ubus call ioman.adc.adc0 status

by anonymous

Hello,

Please reply to which Modbus address I can find?

  • DI1 and DI2 are DRY/WET configurable inputs. 
  • NC1 C1 and NO1 are respectively Normally Closed, Common and Normally Open contacts of internal Non-Latching Relay.
  • NC2 C2 and NO2 are respectively Normally Closed, Common and Normally Open contacts of internal Latching Relay. 
  • A is ADC input. Analog voltage range 0 - 30 V. Input can be configured for 4-20mA sensor protocol as current measurement of 0 - 30 mA.
  • 1W 1-Wire protocol input/output.
They are supposed to be integer numbers and not "ioman.acl.acl0"
Thanks
by
+1 vote for adding a Modbus register for the I/O ports,

best regards.

Marco
by anonymous

Hello,

While we're still working on Wiki pages for Modbus Registers for all of our Networking devices, I am attaching draft .pdf file where you can find all Modbus registers for our Networking devices: https://community.teltonika-networks.com/?qa=blob&qa_blobid=13068226173624320169

by
Thanks for the Modbus list, i'll try ASAP.

Marco
0 votes
by anonymous
I've voted for this topic because I've same troubles  IMY, a lot of problems as your analog scale could be solved with a user friendly toolkit to write some scripts on RUT product. We need to have an read/write access to internal registers, ability to format and to use communication features of router. Something like Nodered or other toolkit...
by anonymous
Hello,

Thank you for you comment. That's is a really great suggestion. I will make sure that RND hears about this.
0 votes
by anonymous
Hello,

Thank you for your patience, we added new pages in our Wiki page regarding Modbus registers for all Teltonika Networking devices. TRB141 Modbus register can be found here: https://wiki.teltonika-networks.com/view/TRB141_Monitoring_via_Modbus
by anonymous
Hello,

it would be very useful if we can write the modbus register even for the time scheduler.

Best regards,

Marco
by anonymous
UP Guys, This feature will be very useful for many people i think