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Sel rtac as modbus server how to#
Sel rtac as modbus server generator#
Sel rtac as modbus server serial#

Sel rtac as modbus server how to#

Please see FAQ731-376: Forum Policies for tips on how to make the best use of Eng-Tips. "Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged. I think an SEL RTAC is overkill for this application. As long as what you get can read Modbus RTU on the 485 link it should be compatible with your Eaton meter. The engineer then networks the Modbus client and servers together using an SEL-2725 Five-Port Ethernet Switch. Try searching "RS485 Modbus data logger Ethernet csv" to see if you can find something that does everything you want without too much extra effort. This can be done by writing some Python code, or you can get something off the shelf that does all you need.

Sel rtac as modbus server serial#

It will convert the serial signal coming in to one of a variety of Ethernet protocols like Modbus TCP, but you'll still need software running on a computer somewhere to read that Ethernet protocol, display it, log it, etc. However one thing Im unsure about is how to regularly (say once per second) Write a block of data to a group of approx. Setting up with most Modbus TCP functions - both Server and Client - seems fairly simple. That gateway will do some of what you want, but not everything.

My first time using a SEL 3350 RTAC (or any RTU for that matter).

RE: Communicate to Modbus Power Meter (EATON IQ100) over Internet thermionic1 (Electrical) 23 Feb 21 11:45 No idea if this would be compatible or useable with the EATON meter.Īny ideas or advice would be appreciated. I think this should be possible and have found the following device (. Ideally, it would log the meter registers and save data to a.csv file. The data can then be accessed remotely by the client. I would like to remove the need to have a laptop on site and simply have the meter push data to the cloud through an internet connection. Data is stored on the laptop and periodically downloaded.

Sel rtac as modbus server generator#

Until now the meter has simply been connected via the Modbus port to a local laptop in the generator room. However, there is a wired R485 link from the meter to another part of the building where an internet connection is available.

The data was collected by creating a Modbus server on the SEL-3505 RTAC and.

The meter is located in a generator room, unfortunately, there is no wifi or internet in that room. Firmware Revision Control Logic SEL03505 RTAC Task TimeModbus Client CSV. The meter has an RS485 port and Modbus-RTU Protocol. Offered at a base price of only $1,095, the SEL-3505-3 is economical and ideal for use in rugged environments.I was hoping to get some advice on how I might communicate with an EATON IQ 100 power meter. The SEL-3505-3 RTAC includes security features like centralized authentication via Lightweight Directory Access Protocol (LDAP), logging of all user access, port control, and innovative intrusion detection and alarming that utilize an accelerometer and optical sensor. Designed for data concentration, protocol conversion, and control applications, the SEL-3505-3 operates with a wide variety of communications interfaces and protocols, including DNP3 serial, DNP3 LAN, Modbus ® RTU, Modbus TCP, IEC 60870-5 101/104 Server, 2179 Client, IEC 61850 GOOSE, IEEE C37.118, and SEL protocols. The automation controller’s dimensions, 6.96" x 5.54" x 2.25", make it ideal for cabinet or DIN rail mounting. The compact and economical SEL-3505-3 provides a fully programmable IEC 61131-3 logic engine with several built-in function blocks, including recently released PID functionality. The newest compact member of the SEL-RTAC family adds connections for three digital outputs and eight digital inputs, expanding the applications of this versatile automation controller. has released the SEL-3505-3 Real-Time Automation Controller (RTAC). Schweitzer Engineering Laboratories, Inc.