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Remote IO using rs485 (or twisted shielded pair) with 4-20ma on both ends

Instrumentation & Measurement One year ago at 10:20 AM

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1783Views
6Replies
Last message by David_2 on July 31, 2025 at 01:54 PM
Struggle to Communicate with Various Energy Meters on the same Cable

Modbus One year ago at 03:10 AM

Forums
1329Views
5Replies
Last message by patrickduis on July 18, 2025 at 03:58 AM
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Trying to integrate A/C system with home assistant

Modbus 5 years ago at 04:53 AM

Forums
3286Views
3Replies
Last message by JonClk on July 13, 2025 at 10:21 PM
Data exchange between 2 Delta PLC's DVP-12SE

Programmable Logic Controller - PLC 4 years ago at 05:08 AM

Forums
4208Views
5Replies
Last message by pupo on June 25, 2025 at 12:43 AM
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Energy Metering Communicating Gibberish & Incorrect Info over Modbus RTU

Modbus One year ago at 06:56 AM

Forums
3120Views
25Replies
Last message by WTF? on June 20, 2025 at 07:38 AM
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Help with Honeywell UDC5300 Controller Serial Communication

General Communications Chat One year ago at 04:13 PM

Forums
1020Views
5Replies
Last message by John_STL on June 18, 2025 at 06:26 PM
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Modbus for pH measurement and control.

Modbus One year ago at 06:44 AM

Forums
936Views
2Replies
Last message by bidrohini on June 15, 2025 at 02:49 AM
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Short range 24VAC wireless signal transmission

General Automation Chat One year ago at 02:07 PM

Forums
1018Views
1Replies
Last message by Chris T on May 7, 2025 at 12:37 PM
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How to Map Modbus RTU Data to HTTP POST Parameters for Protocol Converter Gateway?

Modbus One year ago at 06:44 AM

Forums
2372Views
1Replies
Last message by jschulze on April 18, 2025 at 07:42 AM
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What could be causing lag in Modbus TCP/IP between Siemens PLC and PC

General Communications Chat One year ago at 12:21 PM

Forums
1918Views
2Replies
Last message by jschulze on April 17, 2025 at 05:41 PM
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head scratcher - PtP RTU runs with Windows box, but only temporarily with PLCs

Modbus One year ago at 04:48 PM

Forums
1084Views
3Replies
Last message by jschulze on April 11, 2025 at 08:33 AM
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İnvt modbus rtu start stop problem

Modbus One year ago at 03:03 AM

Forums
1670Views
5Replies
Last message by apa on April 3, 2025 at 07:36 AM
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How to find unknown Slave id on MODBUS Serial Communication

General Automation Chat One year ago at 05:32 AM

Forums
4027Views
4Replies
Last message by BGB on April 1, 2025 at 06:55 PM
Socomec D50 Multifunction Gateway Communication Loss Issue

Open Control One year ago at 01:26 AM

Forums
791Views
0Replies
Last message by Ranjithkumar.M on March 28, 2025 at 01:26 AM
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Where to place the HMI in my sensor array?

Human Machine Interface - HMI One year ago at 09:29 PM

Forums
1467Views
8Replies
Last message by mg555 on March 26, 2025 at 10:17 PM
Modbus Configuration Tool

General Communications Chat One year ago at 03:54 AM

Forums
1194Views
0Replies
Last message by badigermanju on March 12, 2025 at 03:54 AM
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Invalid Check sum In Response

Modbus One year ago at 04:50 AM

Forums
1457Views
1Replies
Last message by jschulze on February 25, 2025 at 08:25 AM
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No Response Received

Modbus One year ago at 02:55 AM

Forums
1248Views
1Replies
Last message by David_2 on February 18, 2025 at 02:37 PM
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Timeout error

Modbus One year ago at 02:39 AM

Forums
2252Views
9Replies
Last message by jschulze on February 13, 2025 at 07:44 AM
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modbus tcp monitoring software

Modbus One year ago at 05:42 AM

Forums
1664Views
1Replies
Last message by jschulze on January 17, 2025 at 07:43 AM