High density Ethernet I/O modules monitor RTD or resistance

Ethernet I/O modules in the Busworks NT series by Acromag now include the NT2620 series RTD (resistance temperature detector) / resistance modules.

They support four RTD / resistance inputs and two bi-directional discrete digital I/O channels to monitor temperature limits with conditional logic. The NTE Ethernet I/O models have dual RJ45 ports and a webserver with Modbus TCP / IP or EtherNet / IPTM communications protocols to monitor or control the internal I/O channels. 

Modbus TCP / IP or EtherNet / IPTM communication is field-selectable. An integrated DIN rail bus allows a connection of up to three NTX expansion I/O modules. This space-saving design requires only 25mm of DIN rail per module. Ethernet I/O modules distribute 9.0 to 32V DC power along the DIN rail bus to expansion modules. Hazardous location approvals, high noise immunity, and -40 to +70 degrees C operation make the I/O suitable for use in harsh environments.

“Now Acromag can interface a wider variety of temperature sensors and offer discrete signals to monitor threshold levels or control alarms,” said Robert Greenfield, business development manager at Acromag.

Acromag announced that it also plans to release a Profinet communication module.

Each module will support all three protocols, selectable using any web browser to configure the network settings and I/O operation. The modules typically function as a network slave, but also offer Acromag’s i2o peer-to-peer communication to transfer data between modules directly without a host or master in between. Multicast capability is included.

Acromag has been developing and manufacturing measurement and control products for more than 60 years. The company offers a line of industrial I/O products including process instruments, signal conditioning equipment, data acquisition boards, distributed I/O systems, and communication devices.


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