Test & Measurement

Modbus probes gain support for parity options

30 May 2022 Test & Measurement

Tibbo has released a new firmware version for its RS-485 Modbus sensors (bus probes). This update covers all five currently available models:

• BP#01 ambient temperature sensor.

• BP#02 ambient temperature and humidity sensor.

• BP#03 ambient light sensor.

• BP#04 three-axis accelerometer.

• BP#05 flood/leak sensor.

The marquee feature of V1.06 is the addition of the parity option for the serial interface, which facilitates the use of odd, even, mark or space parity modes when communicating with bus probes. Particularly noteworthy is the mark parity option, which is equivalent to 8-N-2 (8 bits of data, no parity and 2 stop bits). Two stop bits are often used for better syncing between slow and fast devices on the same RS-485 bus, especially at high baud rates. In some systems, 2 stop bits are used to ensure that Modbus RTU frames are always 11 bits long.

The updated firmware binary is available in Tibbo’s downloads section (https://tibbo.com/support/downloads/bus-probe-firmware.html) as well as through its BP Firmware Updater web app (https://apps.tibbo.com/BPFirmwareUpdater/). Supporting documentation includes step-by-step instructions for updating bus probe firmware via the web app, IO Ninja and Device Explorer.

For more information contact Andrew Hutton, RF Design, +27 21 555 8400, [email protected], www.rfdesign.co.za


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

RF laminates specifically designed for industrial radar applications
RF Design Telecoms, Datacoms, Wireless, IoT
The RO4835IND Lo Pro from Rogers Corporation are thermoset RF laminates that are specifically designed for radar applications in the 60 to 81 GHz range.

Phase-stable cable assemblies operate up to 50 GHz
RF Design Interconnection
The Lab-Flex T series from Smiths Interconnect are low-loss high-frequency cables that have minimal phase change with changing temperature and flexure.

Qorvo announces new satcom MMIC power amp
RF Design Telecoms, Datacoms, Wireless, IoT
The QPA1724 SiC 20 W power amplifier operates in the Ku-K band and is aimed at defence and commercial satellite applications.

40 GHz RF switch from Marki Microwave
RF Design Telecoms, Datacoms, Wireless, IoT
The MSW2-1001ELGA is a reflective SPDT switch that operates in the frequency range from 100 MHz to 40 GHz.

Connectors for the evolving world of test and measurement
Spectrum Concepts Test & Measurement
Instrumentation employed to test new products needs to become more advanced to keep up with rapidly advancing technology.

Tektronix reimagines performance and portability in oscilloscopes
RS Components (SA) Test & Measurement
The new 2 series of oscilloscope can move from the bench to the field and back, enabling workflows previously not possible.

Power amplifier operates from 17,3 to 21,2 GHz
RF Design Telecoms, Datacoms, Wireless, IoT
The new QPA1724 power amplifier from Qorvo delivers a saturated output power of 20 W over the full frequency range.

All-in-one documenting process calibrators
Comtest Test & Measurement
The multifunction calibrators perform sourcing, simulation and measurement of pressure, temperature and electrical signals.

Avoiding safety hazards during solar PV installations
Comtest Test & Measurement
Safety levels during solar panel commissioning and installation have been strengthened by Fluke’s CAT III 1500 V true-RMS clamp meter.

u-blox’ smallest ever GNSS module
RF Design Analogue, Mixed Signal, LSI
Designing an anomaly detection library with AI learning capability is possible with minimal data and with no specific data-science skills needed.