Polling Slaves from 2 Masters
Posted by Sean Campbell on 18 March, 2019 - 8:20 am
Can devices configured as Modbus Slaves send data to 2 separate Masters?
By Fred Loveless on 18 March, 2019 - 10:59 am
No it is not possible to have 2 Modbus Masters talking to the same serial slave device. The Slave...
A New Modbus-TCP Server Simulator
Posted by Talat Dogan on 15 March, 2019 - 9:47 am
New Modbus-TCP Server Simulator freeware is ready for download.
modbus RTU to bluetooth converter
Integrating a non-Modbus system with a Modbus BMS
Ethernet TCP/IP with a BMS system that supports MODBUS.
Commuincating with Laser Caliper (Laser Online LST-25)
Anyone have experience communicating with a Chinese brand Laser Online LX-25 laser caliper via MODBUS RTU protocol?
Changing Modbus MBAP Header
Is there a way to define the MBAP header (ADU) themselves? I want to send: 40 02 AA BB always as Header.
Programing Combox-s Module for Modbus Networking in Atlas Copco Elektronikon MkIV Compressor
How can I program combox-s module using FDP for Modbus networking in Atlas Copco's Elektronikon MkIV compressor?
MODBus memory mapping for registers
By W.L. Mostia on 5 March, 2019 - 7:48 pm
There should be no problems. The memory mapping that resulted in addresses in the 40000s is the...
Modbus I/Os Read/Write from Micro850
How to relate a Tag in CCW to a Modbus register
Modbus TCP and Citect SCADA 6.10
Modbus TCP driver for Citect v6.10?
Is there a device which acts as a HART slave and Modbus Master?
Automation Protocol Through Ethernet
Is it possible to communicate multiple TCP IP protocols through a single port?
By Steve Myres on 27 February, 2019 - 9:25 am
Don't know which PLC you have and if it can do this, but with most PLCs it would work fine. ...
By pvbrowser on 27 February, 2019 - 8:58 am
Since these protocols have different TCP Ports assigned 1 Ethernet interface can handle all of...
Active-X Modbus That Supports Double Floating Point (64bits)
Posted by Fernando Herranz on 22 February, 2019 - 5:52 am
Looking for a Active-X Modbus supporting Double floating point (64bits)
I am building a panel with a PLC, an HMI, and a cellular modem ... Do I need a switch or router?
Dixell XC645 MODBUS Register
Looking for information about MODBUS to connect to the registers in a Dixell XC645CX regulator
Modbus's Registers Real Time Actual Value
Modbus's registers real time actual value problem
By Fred Loveless on 20 February, 2019 - 9:59 am
Well, that is the correct formula for the Axial Force, (-1(Raw Value)5.0)/(2^15). But, It does not...
By Fred Loveless on 19 February, 2019 - 5:07 pm
You are welcome. I wish I could claim genius status with that, but I was playing around with the...
By Fred Loveless on 19 February, 2019 - 10:59 am
Ok, 28.0 C is 301.15 K, so the value that is stored is in Kelvin as an integer. If if you take 3011...
Modbus RTU for Micro Controller without Library
Help me program Modbus master Function 03 in micro controller without library
Trying to learn Modbus from ground up. Looking for good, understandable resources.
By Jeremy Pollard on 16 February, 2019 - 4:25 pm
Nice list - thank you:) Cheers from: Jeremy Pollard, CET The Caring Canuckian! Crisis,...
Elektronikon - CANbus Protocol
Has anyone had experience with implementing HMS' Anybus CANbus-to-Modbus gateway for communicating with Atlas Copco's Elektronikon?
By Muhammed Sajid on 13 February, 2019 - 8:08 am
Hi, I am also interested in this. I want to connect our Atlas copco compressor to our Modbus...
MOBDUS Communication for C2000
How to program host and slave using C2000 launchpad