The Emerson 1C31166G02 is an electronic module (EMOD) base unit designed for the Ovation Distributed Control System (DCS). It functions as a Serial Link Controller, providing the necessary infrastructure for serial communication interfaces. The module is designed to accept a pluggable personality module (PMOD), which defines the specific serial protocol requirements, such as RS-232, RS-485, or RS-422.
The module features two primary ports on the front panel: J1, an RS-232 programming port for interface with a personal computer, and J2, an applications port for connecting to third-party serial devices. The J2 port includes a software-controlled tri-state enable input (TX-ENA) for managing RS-485/RS-422 data transmission, controlled via the UART Modem Control Register.
| Model | 1C31166G02 |
| Module Type | EMOD + PMOD |
| Supported CPU | R1120 CPU |
| Data Transfer Rate (RS-485) | Up to 3.125 Mbps |
| Power Supply | 24 VDC |
| Power Consumption | 5 W |
| Input Voltage Range | 0 to 55 VDC |
| Operating Temperature | -40 degC to +70 degC |
| Storage Temperature | -55 degC to +85 degC |
| Humidity | 5% to 95% non-condensing |
It is an Emerson Ovation DCS Serial Link Controller base unit used to facilitate communication between the DCS network and external serial devices.
It acts as a communication gateway, enabling the DCS to interface with third-party PLCs, intelligent field devices, and various subsystems in industrial environments.
It is an EMOD assembly typically used in conjunction with R1120 CPU systems within power generation and process control applications.
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