D2-250-1 stopped communicating

[gersonm]

Hello,

I have a D2-250-1 CPU plugged into a D2-09B-1 base. I initially plugged my computer to the CPU to program it using DirectSoft 5 and...

[eosalex]

I'm using a proprietary PLC that stores 32 discrete inputs on modbus registers 30003-30004 (and outputs on 40003-40004). When I try to extract a discrete...

[RockB]

Hello,

I want to know if it is possible to read and write information to a Do More PLC from a visual studio C# application running in a PC....

[omer]

Hello,

I'm using Allen Bradley Micro850 , 2080-LC50-24QWB.

I wrote a program using Connected Component Workbench which reads...

[jtkilroy]

Sorry for the NOOB question. I am having a great time working with the P1000 so far. I have run into sensor, an SICK OLM100 bar code reader, that I...

[shan1727]

Hello,

Before starting this thread I searched all over the internet and called customer service of both Automation Direct and Fanuc but no...

[jflores13]

Hi guys,

I'm trying to perform my first Modbus Serial read on an Accuenergy Energy Analyzer that has an RS485 port. I'm trying to use the...

[toby09]

Hey All,
I am working on project called intelligent greenhouse system for which I have been suggested ny my guide to use IOT development kits so...

[fafa3711]

I'm using a number of EA1-S3ML panels to display process information from a PC running a simple modbus tcp server. This works fine. Because the display...

[Brenohc]

Trying to find out how to communicate between a device that has a regular USB connector such as a PC, bar code scanner to a PLC using Modbus. The plc...

[Lucas.Allen]

I am using do more and very new to using Ethernet, new as this is first try haha, i am able to use the EIPMSG to my Keyence SR-752 to make it trigger...

[Gudmundur Ben]

Hello, I just updated a broken D4-450 CPU with the new D4-454. After the replacement I'm not able to communicate with devices on Modbus RTU. I'm using...

[gyrup]

I have a pivot irrigation application. Want to install a VFD at well house, but feedback into VFD would be a pressure sensor installed out near the end...

[mfp101]

Hi guys,

I have a Productivity 2000 PLC and I am trying to communicate with a foreign purchased machine over Ethernet.
This is my first...

[gersonm]

My PLC does not have the modem cable port to connect to. Is this possible? The modem cable has 6 connections but my PLC only has 3 connections for RS...