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Is it possible to read the status of a PLC inputs and also to activate the PLC outputs using VB?
Cimplicity HMI talking to Modicon Momentum on Ethernet, getting 10054 comms error every 10 seconds. Works fine talking to Modicon Quantum.
Need help learning about modbus
Modbus communication with SSIEMENS CP341 as master
Problem with slow online editing.
I want to communicate a KOYO plc DL06 with text panel siebert SX102, modbus network.
where can i find information for PLCs comunication in a LAN with TCP/IP?
Simple Modbus TCP logger
I need communicate by modbus 1 PLC s7-400 with any instruments in a red modbus.
Has anyone used the Compumotor 6K controller with a Modicon Quantum using Modbus TCP?
How checking for MSTR error
Beckhoff PLC and Modbus
Does the AEG Modbus protocol fulfills with the Specification V1.1a?
Need some clarification on scan time vs. time slice.
Could you help me to provide a manual for omron inverters 3G3EV-AB004RM-E?
i have a problem of communications between omron inverter (3G3EV-AB004 RM-E) with modbus and omron C200 plc
I have MODBUS slave deices that i need to write data to from an ALLEN BRADLEY PLC 5/40, with a PROSOFT MCM171 NRAX.
Looking for clarity around Modicon premium automation platform...
from the Does anyone have a Modbus Slave manual? department...
Manual for Modbus Slave for Siemens S5 PLCs? (CP524 / 525)I am modifing an old project with Modbus Slave on a Siemens S5 - 135 U PLC with a CP-524, but I can not find the Modbus Slave manual anymore.
Information on configuring MBP_MSTR block in quantum.
Why does temperature controler slave send to me the right response only in the first time that I ask?
Communications with LOGO by Modbus protokol.
I want to connect an old Modicon PLC with my laptop...
I need help in selecting a Modbus RTU/TCP converter to link between PLC5 (Slave) and DeltaV (VIM Card)
Modbus tends not to be accepted in safety applications as a protocol. With the advent of safe protocols such as Profisafe is the scope to re-assess Modbus?
Cannot using RS485 through port 2...
How do I get the external data via modbus from and to cpu unity quantum?
I want to interface my Existing Honeywell TDC-3000 DCS with the control-logix PLC through ControlNet...
need to understand these and other ,most effective protocols to connect the PLC I/O modules and RTUs...
Problems trying to access a PLC via Modbus TCP.
Which is the suitable MMI package for MODICON range of Unity PLC (with 140 CPU 67160) in hot standby mode with unity pro software?
I need to restrict access to a remote site by having a user enter an ID via a numeric keypad which will be compared in the PLC and if true, will latch an output...
Is there a possibility to exchange data between a Siemens S7 and Controllogix?
Are there any time synchronisation products available which update/synch the time in a PLC network?
I need to configure two TSX Premium PLCs to communicate with each other using GSM/GPRS modem.
How I can simulate RIO drops for Quantum CPU with RIO head CRP?
What is a 'No Try' error?
Problem with catching the rising edge of a bit, using TSX572623 Premium PLC.
We have a Lewa skid that uses Modbus ASCII and we want to connect to a Honeywell DCS.
from the Automation List department...
Is it limitation of Read_VAR or communication channel of MicroI am using Modicon Micro PLC with eight PM500s as slaves and TSXSCP114 (channel 1) as master. I want to read the modbus registers of these PM500s in micro...
Com lamps on card are off during comunication.
I can't find the pin outs required for the Modbus communication wire between RS232 port OMRON SC121 (Protocol Card) and Modicon CPU113-02 PLC.
Do we have to check for "setpoint < 0" condition when the setpoint is expected to be written in a 4xxxxx register from inTouch?
I am planning to connect to a GE Fanuc 90-30 PLC using dual serial ports to my RTU for which I am writing the code. I hope someone can advise me on a few points...
The question is to how to integrate 5000 words from AB PLC to ABB DCS.
Giving some start kits for developing PLC drivers communication.
Does serial port of 1756 L63 support modbus slave/master protocol?
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