GE Fanuc IC697BEM713J PLC Module

The GE Fanuc IC697BEM713J is a Genius bus controller module for the RX3i PACSystems (Programmable Automation Controller) platform. It provides an interface between the RX3i backplane and a Genius I/O network, allowing the PLC to communicate with Genius blocks, field control stations, and other Genius devices. The module supports baud rates up to 153.6 kbaud and can manage up to 32 devices on a single bus.

Genius Bus Specifications

• Protocol: Genius (GE Fanuc proprietary).

• Baud rates: 153.6 kbaud, 38.4 kbaud, or 153.6 kbaud extended.

• Maximum number of devices: 32.

• Maximum cable length: 7500 ft (2286 m) using shielded twisted pair.

• Bus topology: daisy‑chain or trunk line with drops.

Communication and Data Transfer

The module acts as a bus master, scanning Genius I/O blocks cyclically. It supports both global data and directed messages. The IC697BEM713J can exchange up to 128 bytes of input and 128 bytes of output data per device. The bus controller provides automatic configuration of Genius devices and handles fault reporting (e.g., device loss, short circuit).

Configuration and Diagnostics

Configuration is performed using Proficy Machine Edition. The module stores the Genius bus map in non‑volatile memory. Front panel LEDs: OK (green), COMM (yellow), I/O (yellow), and FAULT (red). A 3‑digit 7‑segment display shows the bus controller address (1–32) and error codes. Diagnostic counters (bus errors, retries) are accessible via the PLC logic.

Power and Environmental

Power consumption: 500 mA from the 5V backplane. Dimensions: 140 mm height x 35 mm width x 140 mm depth. Weight: 0.3 kg. Operating temperature: 0 to 60°C; storage: -40 to 85°C. Humidity: 5% to 95% non-condensing. Protection class: IP20. The module is CE, UL, and RoHS compliant.

Compatibility

The IC697BEM713J works with RX3i CPUs (IC695 series) and is backward compatible with Series 90‑30 Genius bus controllers (IC693BEM713). It can control Genius I/O blocks (IC660, IC661), Genius field control stations, and Genius hand-held monitor (IC660HHM501).

Installation

The module occupies one slot in an RX3i backplane. It requires a Genius bus connection via a 9‑pin D‑sub connector (female). Termination resistors (100 Ω) are required at both ends of the bus. The module is not hot‑swappable; power must be removed before insertion.

Typical Applications

Used in legacy GE installations where Genius I/O is deployed, such as automotive plants, steel mills, and water treatment facilities. The bus controller allows the RX3i CPU to interface with existing Genius field devices without rewiring.

Ordering and Documentation

GE Fanuc order number: IC697BEM713J. The module includes a bus termination resistor kit. Manual: RX3i Genius Bus Controller User Manual (GFK-2509).