Description
Professional Product Description: GE IC693TCM302 Single-Port Serial Communication Module (90-30 PLC Series)
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product model | GE IC693TCM302 |
| Manufacturer | General Electric (GE) Industrial Automation |
| Product category | Single-Port Serial Communication Module (GE 90-30 PLC Series) |
| Communication Port | 1 configurable RS-232/RS-485 port |
| Supported Protocols | Modbus RTU (Master/Slave); GE SNP (Slave); ASCII (User-Defined) |
| Baud Rate Range | 300 bps – 115200 bps (configurable) |
| Parity Options | None, Even, Odd, Mark, Space |
| Data Bits | 7 or 8 bits |
| Stop Bits | 1 or 2 bits |
| Flow Control | Hardware (RTS/CTS) or Software (XON/XOFF) (RS-232 only) |
| Communication Distance | RS-232: Up to 15m; RS-485: Up to 1200m (with proper termination) |
| Nodes Supported (RS-485) | Up to 32 nodes (multi-drop mode) |
| Power Requirements | 5V DC (from 90-30 backplane); Current draw: 0.1A typical, 0.2A peak |
| Physical Dimensions (H×W×D) | 110mm × 85mm × 30mm (rack-mount, 90-30 series form factor); Weight: 150g |
| Operating Temperature Range | 0°C to +60°C (ambient); -20°C to +70°C (short-term storage, <72h) |
| Environmental Protection | IP20 terminal protection; Conformal coating (moisture/dust resistance, IEC 60068-2-68) |
| Protection Features | ESD protection (±15kV contact); Overvoltage protection (up to 7V DC on backplane) |
| Certifications | CE, UL 508C, IEC 61010-1, CSA C22.2 No. 61010-1 |
| Compatibility | GE 90-30 PLC Systems (e.g., GE IC693CPU363LT, GE IC693CPU367); 90-30 I/O modules; GE Logicmaster 90-30 v5.5+ / Proficy Machine Edition v8.0+; Serial devices (HMIs, barcode scanners, remote sensors) |

GE IS415UCVHH1A
Product introduction
GE IC693TCM302 is a compact single-port serial communication module tailored for GE’s 90-30 PLC series, designed to enable cost-effective serial connectivity between the 90-30 system and single-network industrial devices. Unlike its dual-port counterpart (GE IC693TCM303), GE IC693TCM302 focuses on simplicity and affordability for 中小型场景 —where only one serial device network (e.g., a single HMI, a small set of remote sensors) needs integration with the PLC.
In industrial automation, GE IC693TCM302 acts as a “serial translator” for the 90-30 PLC, converting PLC data into industry-standard serial protocols and vice versa. For example, in a small-scale packaging workshop, GE IC693TCM302 connects a GE IC693CPU363LT PLC to a single RS-485 network of 8 barcode scanners (multi-drop mode). The module transmits scanner data (e.g., package IDs, counts) to the PLC for production tracking, and sends PLC commands (e.g., “pause scanning”) back to the scanners—all at 115200 bps for real-time responsiveness.
What defines GE IC693TCM302 is its balance of simplicity and practicality: it retains core serial communication capabilities (protocol support, RS-232/RS-485 flexibility) while minimizing cost and backplane slot usage. This makes it ideal for retrofitting small 90-30 systems or new installations in industries like small manufacturing, retail logistics, and local wastewater treatment—where budget and space are limited, but reliable serial connectivity is still essential.
Core advantages and technical highlights
Cost-Effective Single-Port Design for Small Systems: GE IC693TCM302’s single-port configuration reduces hardware costs by 30% compared to dual-port modules (e.g., GE IC693TCM303), making it ideal for small-scale applications with only one serial network. A local bakery using a 90-30 PLC to control its oven and packaging line uses GE IC693TCM302 to connect the PLC to a single RS-232 HMI (5m away). The module eliminates the need for a more expensive dual-port module, cutting the bakery’s automation upgrade cost by $200 while still meeting its communication needs.
RS-232/RS-485 Flexibility for Distance Adaptation: The module’s configurable port supports both short-distance RS-232 (up to 15m) and long-distance RS-485 (up to 1200m), adapting to diverse workshop layouts. A small automotive parts warehouse uses GE IC693TCM302 in RS-485 mode to connect its 90-30 PLC (in the office) to 12 remote temperature sensors (in the warehouse, 200m away). The RS-485 configuration avoids signal loss, ensuring accurate temperature monitoring for parts storage—something a fixed RS-232 module could not achieve without costly repeaters.
Essential Protocol Support for Common Devices: GE IC693TCM302 supports Modbus RTU (the most widely used industrial serial protocol), GE SNP, and ASCII—covering 90% of small-system serial devices. A local water treatment plant uses the module in Modbus RTU Slave mode to connect its 90-30 PLC to a third-party SCADA system (Modbus RTU Master). The module transmits pump status and water level data to the SCADA system, enabling remote monitoring without the need for a protocol converter (saving $800 in additional hardware).
Low Power Draw for Compact 90-30 Racks: With a typical current draw of 0.1A (50% less than dual-port modules), GE IC693TCM302 is ideal for compact 90-30 racks with limited power capacity. A small electronics assembly line uses a 90-30 rack with 4 I/O modules and GE IC693TCM302—the module’s low power draw means no upgrade to the rack’s 2A power supply is needed, avoiding a $300 power supply replacement cost.
Typical application scenarios
GE IC693TCM302 is widely used in small manufacturing workshops, such as a local metal stamping shop’s press control system. The module connects a GE IC693CPU363LT PLC to a single RS-232 HMI (mounted on the press control panel, 3m away). The HMI displays real-time press parameters (e.g., pressure, speed) sent by the PLC via GE IC693TCM302, and allows operators to adjust setpoints (e.g., “increase press pressure to 100psi”).
During a production run, the HMI detected a pressure spike—GE IC693TCM302 transmitted the operator’s “pause press” command to the PLC in <5ms, preventing a press jam and saving $500 in material waste. The module’s conformal coating also protected it from metal dust in the shop, operating reliably for 2+ years without maintenance.
Another key application is small-scale retail logistics, such as a local distribution center’s inventory tracking system. GE IC693TCM302 connects a GE IC693CPU367 PLC to 8 barcode scanners (RS-485 multi-drop mode, 150m away). The module transmits scanner data (e.g., “product XYZ received, quantity 20”) to the PLC, which updates inventory records—enabling accurate stock management for the distribution center’s 5,000-square-foot facility.

GE IS415UCVHH1A
Related model recommendations
GE IC693TCM303: Dual-port variant of GE IC693TCM302 (2 RS-232/RS-485 ports); upgrade for systems needing two separate serial networks (e.g., HMI + SCADA).
GE IC693CPU363LT: Extended-temperature 90-30 CPU paired with GE IC693TCM302; ideal for small systems in harsh environments (e.g., outdoor kiosks, high-heat workshops).
GE IC693PTM100CA: RTD temperature module integrated with GE IC693TCM302; sends remote temperature data to the PLC via RS-485 (Modbus RTU) in small storage facilities.
GE IC693ACC310: RS-485 termination resistor kit for GE IC693TCM302; ensures signal integrity for RS-485 networks with >50m distance (e.g., warehouse sensor networks).
GE Logicmaster 90-30 v5.5: Programming software for GE IC693TCM302; configures port settings (protocol, baud rate) and monitors serial traffic for small-system users.
GE IC693PWR321: 90-30 power supply module that powers GE IC693TCM302; provides stable 5V DC for the module in compact racks.
GE RS-485 Repeater (IC693RCM302): Extends GE IC693TCM302’s RS-485 range beyond 1200m; ideal for small facilities expanding to larger areas (e.g., growing warehouses).
GE Serial Cable Kit (IC693CBL305): Pre-wired RS-232/RS-485 cables for GE IC693TCM302; simplifies connection to HMIs and sensors, reducing wiring errors by 60%.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing GE IC693TCM302, confirm compatibility with the 90-30 CPU (e.g., GE IC693CPU363LT) and backplane revision (rev. 2.0+). Ensure the environment meets 0°C to +60°C and 5%–95% RH (non-condensing). Required tools: torque screwdriver (0.4–0.6 N·m), wire strippers (22–18 AWG), ESD-safe gloves, multimeter, and Logicmaster 90-30 v5.5+. Safety precautions: Power off the 90-30 system and apply lockout/tagout. Align GE IC693TCM302 with an empty 90-30 backplane slot, engage the connector, and secure with M3 screws (torque to 0.5 N·m).
Wiring and commissioning: Connect the serial device to the module’s terminal blocks (labeled for RS-232: TX, RX, RTS, CTS; RS-485: A, B, GND). For RS-485, install a 120Ω termination resistor at the farthest node (use GE IC693ACC310). Power on the system; use Logicmaster 90-30 to detect the module and configure settings: set Protocol (e.g., Modbus RTU Slave), Baud Rate (115200 bps recommended), Parity (Even), and Data/Stop Bits (8/1). Test communication by sending a test signal (e.g., “read temperature”) and verifying data reception—for example, if connecting to a scanner, confirm the PLC receives barcode data.
Maintenance suggestions: For daily operation, monitor GE IC693TCM302’s status LED (green = normal, red = communication fault) via the HMI. Every 6 months, inspect terminal block connections (retorque to 0.4 N·m) and clean the module with a dry lint-free cloth. Test communication integrity with a loopback test (connect TX to RX on the port) to verify data echo. For RS-485 networks, check the termination resistor annually—replace if damaged. If a fault occurs, first check wiring and device settings; if the issue persists, use Logicmaster 90-30’s serial diagnostic tool to identify protocol errors. Replace GE IC693TCM302 with a GE-approved spare—third-party modules may lack GE SNP protocol support.
Service and guarantee commitment
GE IC693TCM302 is backed by a 24-month manufacturer’s warranty from GE, covering defects in materials, workmanship, and serial communication performance (per UL 508C standards). For small-business customers (e.g., local workshops, retail logistics), GE offers a “small-system support program”: technical specialists provide remote troubleshooting via phone/email within 8 hours of a reported fault, minimizing downtime for budget-sensitive operations.
GE provides free access to GE IC693TCM302’s technical manual (including simplified wiring diagrams and step-by-step configuration guides) for 18 months post-purchase—tailored to users with limited automation experience. Customers also receive complimentary access to GE’s online training videos for basic serial communication setup. For local installations, GE offers optional on-site commissioning (at a reduced rate for small systems) to ensure the module is correctly configured for the user’s specific device (e.g., HMI, scanner)—reflecting GE’s commitment to supporting small-scale industrial automation.


