for signal integrity measurements on
serial buses.
The Modbus decoder is available
for all PicoScope models, from the
low cost 2000 series to the top range
6000 series.
For sources that are not
referenced to earth (such as RS-485),
the recently introduced PicoScope
4444 series permits quick and easy
differential measurements on up to
four channels without the expensive
external active differential probes
typically needed in industrial
applications.
PicoScope includes a
comprehensive set of automated and
ruler-based onscreen measurements
as standard.
Modbus is a serial
communications protocol for use
with programmable logic controllers
(PLCs). Managed by the Modbus
Organization, this simple and robust
protocol is widely used to connect
industrial electronic devices.
The PicoScope decoder supports
master and slave devices, standard
and custom baud rates, and one or
two ID bytes.
Hundreds or thousands of
Modbus messages can be captured
with each acquisition using the deep
memory provided in most PicoScope
models.
Each message is stored with
start/end timing information, device
IDs, function codes, transmitted data,
and CRC information, as well as data
validity checks.
The table of acquired messages
can be analyzed directly within
PicoScope or can be exported in
CSV format for offline analysis.
A link file helps to speed analysis
by cross-referencing hexadecimal
field values (such as the slave ID) to
plain text. Clicking on a decoded
packet takes you to the
corresponding point on the analog
waveform, making it easy to
troubleshoot bus errors.
Modbus decoding and analysis is
included as standard in the latest
PicoScope beta version 6. 13, which
now supports a total of 18 serial
protocols.
The software is available free of
charge for all existing and new
PicoScope users and can be
downloaded from their website.
DUAL EXPRESSION
PEDAL
Electro-Harmonix announces the introduction of a dual output
expression pedal featuring the
company’s advanced polymer
construction that yields roadworthy
pedals with a significant weight
savings.
The Dual Expression Pedal’s dual-output design gives hands-free
control of two devices from a single
source. Each expression output has
independent range and reverse, plus
a polarity switch for maximum
compatibility with a wide range of
gear. Two six foot TRS cables are
included.
The Dual Expression Pedal carries
a US street price of $72.70.
INTERNET-ENABLED
DATA LOGGERS
Measurement Computing Corporation announces the
release of WebDAQ Internet enabled
data loggers. WebDAQ devices offer
a complete and easy-to-use remote
data acquisition solution.
Stock Drive Products
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Continued on page 55
For more information, contact:
Electro-Harmonix
www.ehx.com
For more information, contact:
Pico Technology
www.picotech.com
September 2017 17