This bus transmitter module connects a Series 90-70 PLC to a Genius I/O network. It converts parallel backplane data into serial Genius protocol messages. You can place this module in any Series 90-70 rack slot. The unit supports both copper and fiber optic network cable types.
Technical Specifications & Key Parameters
| Parameter | Detail |
|---|---|
| Product Model | GE IC697BEM713H |
| Category | Bus Transmitter Module |
| Dimensions (H x W x D) | 330 mm x 32 mm x 305 mm |
| Weight | 0.91 kg (2.0 lbs) |
| Communication Interface | Genius LAN (redundant bus support) |
| Cable Types | Shielded twisted pair or fiber optic |
| Transmission Speed | 153.6 kbps (standard Genius baud rate) |
| Maximum Cable Length | 750 feet (228 meters) for copper, 2000 feet for fiber |
| Number of I/O Devices | Up to 32 Genius blocks per bus |
| Energy Storage | 220 µF capacitor (holds configuration for 15 ms) |
| Backplane Current Draw | 400 mA at 5V DC |
| Status Indicators | Four LEDs (PWR, LAN OK, A/B active, fault) |
| Connector Type | One 15-pin D-sub (Genius port) |
Detailed Feature Overview
GE IC697BEM713H provides the interface between the PLC backplane and Genius devices. It supports both copper and fiber optic cable for flexible installation. The module operates at 153.6 kbps for reliable data exchange. You can connect up to 32 Genius I/O blocks on a single bus. Consequently, a single module can monitor hundreds of I/O points.
The unit draws only 400 mA from the Series 90-70 backplane. A 220 µF capacitor stores enough energy for short power interruptions. This feature retains configuration settings for 15 milliseconds. Four front-panel LEDs show network status at a glance. For example, the LAN OK light confirms active communication with remote blocks.
Redundancy and Reliability Features
This module supports dual bus cables for fault-tolerant systems. It automatically switches to the backup cable if the primary fails. The unit detects broken cables, short circuits, and signal loss. You can replace a faulty module without powering down the PLC. Moreover, the Genius protocol includes CRC error checking for data integrity.
Installation and Environmental Limits
The module weighs only 0.91 kg for simple rack insertion. Use shielded twisted pair cable for copper installations. Terminate both ends of the cable with 120 ohm resistors. Ambient temperature must stay between 0°C and 60°C. Humidity ranges from 5% to 95% without condensation for reliable operation.
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