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The IC693BEM340 is a Genius Bus Controller (GBC) for the GE Fanuc Series 90‑30 programmable logic controller family. Mounted in any I/O slot of a 5‑, 10‑, or 17‑slot base, the module provides a high‑speed serial interface between the PLC CPU and up to 31 Genius‑bus devices—including remote drops, variable‑frequency drives, block I/O stations and smart transmitters. Data exchange is accomplished in a deterministic time slice, allowing real‑time control on harsh plant floors.
The GBC transparently maps field data into the Series 90‑30 memory table, so ladder, Structured Text, or C logic can reference bus words as if they were local I/O. Firmware supports automatic device identification, soft configuration, built‑in diagnostics, and network fault isolation. The module draws its logic power from the PLC backplane and requires no special cabling beyond standard Genius twisted pair.
| Parameter | Value |
|---|---|
| Model | IC693BEM340 |
| Series | GE Fanuc Series 90‑30 PLC |
| Function | Genius Bus Controller (GBC) |
| Dimensions | 100 × 127 × 60 mm (H × D × W) |
| Weight | 0.386 kg |
| Network Capacity | 31 devices, 1536 bytes input + 1536 bytes output per scan |
| Bus Type | GE Genius, 115.2 kbps default (38.4 … 153.6 kbps selectable) |
| Isolation | 1500 V RMS opto‑isolation between field and logic |
| Backplane Current | 450 mA @ +5 V DC |
| Status Indicators | BUS OK, CPU COMM, TX/RX activity LEDs |
| Configuration | Proficy Machine Edition or handheld programmer |
| Operating Temp. | 0 … 60 °C |
| Storage Temp. | –40 … 85 °C |
| Humidity | 5 … 95 % RH non‑condensing |
| EMC / Safety | CE, UL, cUL Class I Div 2, FM |
Fitted with a high‑speed ASIC, the IC693BEM340 polls each Genius drop in microseconds, buffering up to 32 words per device in both directions. Dual‑ported RAM shared with the PLC CPU guarantees that the latest field data are available every scan, eliminating the need for custom handshaking.
Commissioning is simplified by automatic baud‑rate detection, device ID reporting, and a built‑in diagnostics table that flags open circuits, duplicate device numbers or checksum errors. Error codes are displayed on LEDs and logged into the PLC fault table for historian retrieval.
• Power Generation – Turbine supervisory control, burner management and auxiliary skids.
• Oil & Gas – Compressor stations, pipeline block‑valve control, offshore platform safety loops.
• Water & Wastewater – Filter bed actuation, pump station monitoring over long cable runs.
• Automotive Manufacturing – Body shop weld cells, conveying systems, distributed valve manifolds.
• Pulp & Paper – Paper‑machine drive coordination, remote motor control centers, smart MCC buckets.
• Field‑proven Genius network – noise‑immune, peer‑to‑peer messaging without repeaters up to 750 m.
• Deterministic throughput – consistent scan contribution (< 4 ms with 10 devices) for tighter PID and motion loops.
• Hot‑swap ready – devices can be added or replaced online; controller auto‑reconfigures after address match.
• Compact footprint – 2‑inch‑wide Series 90‑30 module fits existing racks; no external gateway required.
• Rich diagnostics – LED matrix plus software status words cut troubleshooting time by 60 % compared with legacy remote I/O.
GE Automation (formerly GE Fanuc, now Emerson) delivers robust PLC platforms and industrial networking solutions renowned for long service life, backward compatibility and world‑class support.
The Series 90‑30 family spans CPUs, power supplies, I/O, specialty cards and communications modules—offering modular control from 32 to 4096 I/O points. IC693BEM340 belongs to the communications tier that links the PLC to Genius, Profibus, DeviceNet and Ethernet networks.
| Model | Description | Dimensions | Weight |
|---|---|---|---|
| IC693BEM331 | Genius Bus Controller for remote drops (earlier rev.) | 100 × 127 × 60 mm | 0.39 kg |
| IC693CPU374 | High‑speed CPU w/ embedded Ethernet & motion | 130 × 172 × 60 mm | 0.45 kg |
| IC693CMM321 | 10/100 Ethernet TCP/IP module for Series 90‑30 | 100 × 127 × 60 mm | 0.37 kg |
| IC693ALG442 | 8‑channel 4–20 mA analog output card | 100 × 127 × 60 mm | 0.34 kg |
| IC693MDL260 | 16‑pt isolated relay output module (2 A contacts) | 100 × 127 × 60 mm | 0.33 kg |
| Model | Description | Dimensions | Weight |
|---|---|---|---|
| IC695CPU315 | PACSystems RX3i 1 GHz processor, 64 MB RAM | 150 × 150 × 50 mm | 0.49 kg |
| IC695ETM001 | RX3i 10/100/1000 Ethernet module with PTP | 150 × 150 × 50 mm | 0.42 kg |
| IC695ALG626 | 16‑ch high‑density isolated analog input, 18‑bit | 150 × 150 × 50 mm | 0.46 kg |
| IC695PSD140 | 24 V DC PACSystems redundant power supply | 150 × 100 × 50 mm | 0.55 kg |
| IC695ACC402 | RX3i local expansion backplane, 12 slots | 350 × 150 × 40 mm | 0.65 kg |
Q1: What devices can I connect to the IC693BEM340?
A1: Any Genius‑compatible device—block I/O, VersaMotion drives, Series 90‑70 drops, HMIs, and third‑party equipment fitted with a Genius interface.
Q2: How many drops can one BEM340 manage?
A2: Up to 31 per Genius bus segment, each with up to 32 bytes in and 32 bytes out.
Q3: Can I mix different baud rates on the same bus?
A3: No. All nodes on a single Genius trunk must share the same baud rate; selectable values are 38.4, 76.8, 115.2 or 153.6 kbps.
Q4: Does the module require a dedicated slot?
A4: It can be placed in any I/O slot (not the CPU slot) of a Series 90‑30 base; power is drawn automatically from the backplane.
Q5: How is the module configured?
A5: Via GE Proficy Machine Edition or the legacy Logic Master 90 software—device numbers, baud rate, and memory mapping are entered in the hardware configuration.
Q6: What happens if the Genius cable is cut?
A6: The BEM340 flags a “bus fault,” sets configurable fault bits for each affected drop, and the PLC program can execute a safe‑state response.
Q7: Is firmware upgradeable?
A7: Yes, firmware can be updated through the programmer port; upgrades typically add diagnostics or new Genius features.
Q8: How long can the cable run be?
A8: Up to 750 meters total trunk length per segment using approved twin‑axial AWG 18 cable, or longer with repeaters.
Q9: Does the module support redundant Genius networks?
A9: Redundant cabling is not native; however, multiple BEM340s in separate bases can be used for redundant control paths.
Q10: What is required for CE compliance?
A10: Installation inside a metal cabinet with proper grounding, ferrite suppression on network leads, and adherence to GE wiring guidelines.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.