Horner Electric HE693RTU900 — Interface Module

Part number	HE693RTU900
Brand	Horner Electric
Category	Communication Module
Description	Interface Module
Manufacturer	Horner Electric
Product Type	Interface Module
Product Line	RTU Master Communication Modules
Part Number	HE693RTU900
Weight	0.56 lbs (0.26 kg)
Communication Protocols	Modbus RTU (Slave)
RS-232 Ports	1
RS-485 Ports	1
Supported Baud Rates	Up to 115.2 kbps
Report by Exception	Yes
PLC Compatibility	Series 90-30 PLCs
Power Supply	5 VDC via backplane
Isolation	1500 VAC field-to-logic
Diagnostics	LED indicators for status and communication
Operating Temperature	0–60 °C
Storage Temperature	‑40–85 °C
Humidity	5–95% non-condensing

The HE693RTU900 from Horner Electric is an interface module that supports Modbus RTU as a slave protocol. Designed for integration with Series 90-30 PLCs, this module features one RS-232 and one RS-485 port, allowing for versatile communication options.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.