Part Code Definition

1C31xxx = Ovation compact remote I/O module serial code;

169 = exclusive model code for serial link communication controller;

G02 = second generation hardware revision version.

Technical Specifications

Power supplied via rack backplane 5VDC internal bus, typical power consumption 4.2W;

Dual independent serial ports: RS232 + RS485, configurable half/full duplex working mode;

Adjustable baud rate range:9600/19200/38400/57600/115200bps, data bit 7/8, parity none/odd/even, stop bit 1/2 optional;

Max connectable slave node address range 1~31 under RS485 bus;

Galvanic isolation between serial port and system backplane:1500VAC withstand voltage;

Operating ambient: -40℃~+70℃, 5%~90%RH non-condensing; supports hot-swap on Ovation standard I/O rack; dimension:44.5×157.5×270mm, net weight approx 0.54kg.

Interface & Communication Layout

Rear golden finger plugs into rack backplane for Ovation system bus data interaction;

Front panel equipped with DB9 serial terminals for RS232 and RS485 field wiring;

Front LED indicators: RUN operation lamp, module fault alarm, serial port transmit/receive status lamp for each channel.

Core Functions

Protocol conversion between Ovation internal bus and industrial serial protocols (Modbus RTU, custom serial protocols);

Real-time data collection from third-party PLC, excitation regulator, intelligent transmitters and RTU via serial bus;

Transmit DCS control commands down to serial-type field control equipment;

Built-in communication self-diagnosis for bus short, wiring open, slave offline, fault codes automatically uploaded to Ovation controller for system alarm recording;

Online parameter configuration of serial communication parameters through Ovation configuration software without module offline.

Application Scenarios

Thermal power plant generator excitation cabinet communication, boiler auxiliary PLC data docking, furnace intelligent instrument data acquisition; petrochemical plant field RTU, compressor controller serial access for DCS system expansion and spare part replacement.

Operation & Maintenance Notes

Adopt shielded twisted-pair for serial wiring, single-end shield grounding inside control cabinet;

Separate serial signal cables from high-current AC power cables to avoid EMI interference;

Regularly check DB9 terminal fastening condition and communication online status; replace module upon persistent communication failure after field circuit troubleshooting.