Emerson 1C31169G01 Product Description (Ovation RS-232 Communication Submodule)

1C31169G01 is an RS-232 interface submodule (Personality Module) of the Emerson (formerly Westinghouse) Ovation DCS system link controller. It must be used in conjunction with the main control module 1C31166G01/G02 to provide standard RS-232 serial communication channels for the Ovation system, specifically for short-distance, point-to-point connections of third-party serial port devices, enabling data exchange between the DCS and instruments, PLCs, and serial port devices. It is the core accessory for serial port expansion in the Ovation system. I. Product Overview

Model: 1C31169G01

Brand: Emerson (Emerson), originally Westinghouse (Westinghouse)

Series: Ovation DCS Link Controller (LC) Sub-module

Core Positioning: Specialized RS-232 interface board, combined with 1C31166G01/G02 main module to form a complete serial link controller

Function: Provides 1 standard RS-232 serial port, enabling communication between Ovation and third-party RS-232 devices (short distance, point-to-point)

Interface Type: DB9 (female)

Mating Main Module: 1C31166G01, 1C31166G02

Origin: United States

Warranty: 12 months

II. Core Functional Characteristics

1. Standard RS-232 Serial Port Communication

Provides 1 full-duplex RS-232 interface, compliant with EIA/TIA-232 standard, supporting point-to-point short-distance communication, suitable for most industrial devices with RS-232 interfaces, such as intelligent instruments, small PLCs, serial port printers, terminal devices, etc. All parameters of baud rate, data bits, stop bits, and parity check can be programmed, compatible with common rates of 300–115200bps, meeting the requirements for matching communication parameters of different devices.

2. Plug-and-play, main module compatibility

As a sub-module (Personality Module), directly inserted into the slot of 1C31166G01/G02 main module, no additional hardware configuration required. The main module automatically identifies the interface type and quickly builds an RS-232 communication link. Seamless integration with the Ovation system, supports hot swapping, allowing online replacement without affecting the main module and system operation, facilitating maintenance.

3. Short-distance High-reliability Transmission

The standard transmission distance of RS-232 is up to 15 meters. In the CE-certified system, it is recommended to be ≤10 meters. Suitable for short-distance wiring scenarios within cabinets and between equipment. Adopting optical isolation + hardware filtering design, effectively suppressing common-mode interference and noise signals in industrial environments, ensuring stable data transmission with low error rate, guaranteeing accurate data reception and transmission.

4. Multi-protocol Support and Flexible Configuration

Relying on the protocol processing capability of the main module (1C31166G01/G02), supports Modbus RTU/ASCII, custom serial port protocols, enabling switching between master/secondary modes, meeting the requirements of different device communication roles. Supports data caching and verification (CRC16/LRC), combined with the self-diagnosis function of the main module, can monitor communication status in real time, quickly locate wiring errors, device non-response, parameter mismatch, etc., facilitating maintenance.

5. Industrial-grade Environmental Adaptability

Uses industrial-grade components, compatible with the wide temperature operating environment of the Ovation system, working temperature **-20℃~+60℃**, capable of withstanding certain vibration and impact, compliant with IEC 60068-2-6 standard, suitable for regular industrial cabinet conditions. Compact in size, standard modular design, does not occupy additional cabinet space, installation is compact and efficient.

III. Detailed Technical Specifications

Interface and Electrical Parameters

Communication Interface: 1×RS-232 (DB9 female)

Communication Standard: EIA/TIA-232, full-duplex

Baud Rate: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200bps (programmable)

Data Bits: 7 bits, 8 bits (programmable)

Stop Bits: 1 bit, 2 bits (programmable)

Parity Check: No check, odd check, even check (programmable)

Transmission Distance: ≤15 meters (standard) CE certification system ≤ 10 meters

Isolation level: 2000VAC (coordinated isolation with the main module)

Signal level: ±12V (RS-232 standard level)

Power consumption: Powered by the main module, ≤ 1W

Environmental parameters

Operating temperature: -20℃ ~ +60℃

Storage temperature: -40℃ ~ +85℃

Relative humidity: 5%–95% RH (no condensation)

Vibration tolerance: 5g (IEC 60068-2-6)

Impact tolerance: 30g (IEC 60068-2-6)

Certification: CE, RoHS, UL Physical parameters

Dimensions: 118 × 28 × 93 mm (fits into the main module slot)

Weight: Approximately 0.32 kg

Installation method: Insert into 1C31166G01/G02 main module

Interface identification: RS-232 (DB9)

Communication performance

Data update rate: 10–1000ms (programmable, configured by the main module)

Data verification: CRC16 (Modbus), LRC (ASCII)

Maximum device number: 1 (point-to-point)

IV. Typical application scenarios

Power generation industry

Used for communication between Ovation DCS and local intelligent instruments for boilers, turbine monitoring terminals, flue gas analyzers, serial port printers, etc., for collecting temperature, pressure, concentration and other parameters, printing report data, and enabling interconnection of equipment within the cabinet.

Chemical industry

Suitable for RS-232 devices such as reaction vessel temperature control instruments, small PLCs, online analyzers, on-site operation terminals, etc., for short-distance process data collection and equipment control, meeting communication requirements for compact layouts in chemical plants.

Other industrial scenarios

Widely used for short-distance RS-232 device interconnection in industries such as oil and gas (on-site small instruments), metallurgy (local display terminals), water treatment (water quality analyzers), etc.; compatible with Ovation old system serial port expansion, with the main module unchanged, only replacing the sub-module to switch between RS-232/RS-485 interfaces (1C31169G02 is RS-485 sub-module), flexibly adapting to different interface requirements.

V. Installation and wiring instructions

Module installation

Confirm that the main module (1C31166G01/G02) has been powered off or is compatible with hot plugging;

Align 1C31169G01 with the sub-module slot of the main module and push in smoothly to ensure the latch is securely engaged;

After the main module is powered on, it automatically recognizes the RS-232 interface, and the indicator light will light up normally, allowing for use.

RS-232 interface wiring (DB9 female connector)

Pin definitions:

2: RXD (receive data)

3: TXD (transmit data)

5: GND (signal ground)

Wiring method: Directly connect to the DB9 interface of the third-party RS-232 device, adjust cross / direct connection according to the device type (DTE/DCE);

Cable requirements: Standard DB9 serial cable, length ≤ 15 meters, single-ended grounding of the shielding layer, reducing interference.

Software configuration (Ovation system)

On the main module (1C31166G01/G02) configuration interface, select RS-232 interface, set the baud rate, data bits, stop bits, parity check, select protocol type (Modbus/ASCII/Custom), configure master/slave mode and data address, and after completion, communication can be established.

VI. Differences from 1C31169G02

1C31169G01: RS-232 interface, short distance (≤15 meters), point-to-point, DB9 connector, suitable for equipment within the cabinet;

1C31169G02: RS-485/RS-422 interface, long distance (≤1200 meters), multiple nodes (32 slave stations), wiring terminals, suitable for long-distance bus communication in the field.

VII. Ordering and supporting information

Ordering model: 1C31169G01

Main module: 1C31166G01, 1C31166G02

Supporting accessories: DB9 serial cable, 120Ω terminal resistor (optional)