GE HE693RTM705 | RTU Master Communication Module Price Advantage

Overview
The GE HE693RTM705 is a dual‑port Modbus/RTU master communication module designed for the Series 90‑30 PLC family. It enables the PLC to interface with remote RTU/Modbus slave devices over RS‑232, RS‑422/RS‑485 or radio modem links, facilitating data exchange for analog and discrete points in industrial automation systems.

General Information
Brand: GE (General Electric)
Country of Origin: United States
Model Number: HE693RTM705
Series: Series 90‑30 I/O & Communication Modules
Product Type: RTU Master Communication Module
Application: Connectivity between PLCs and remote Modbus/RTU slave devices in process control and automation environments

Power Specifications
Supply Voltage: 5 V DC
Typical Current Consumption: Approx. 425 mA @ 5 V DC
Protection Features: Internal fault detection, LEDs for port and module status

Communication & Interface
Ports: Two independent logical channels (Port 1 and Port 2)
Supported Interfaces: RS‑232 (Port 1) and RS‑485/RS‑422 (Port 2)
Protocol: Modbus RTU master mode
Functions: Polling or report‑by‑exception slave nodes; supports read/write of analogue and discrete data in large contiguous blocks
Diagnostics: Status LEDs for each channel, module self‑test on power‑up, fault reporting via PLC

Environmental
Operating Temperature: 0 °C to +60 °C
Storage Temperature: –40 °C to +85 °C
Humidity: Up to 95% RH, non‑condensing
Installation: Plug‑in module for Series 90‑30 local slot; only compatible with CPU331 or higher

Dimensions & Weight
Dimensions (L × W × H): Approx. 145 × 115 × 30 mm
Weight: Approx. 0.30 kg

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