?GE IC697CMM742 Ethernet interface module

Functional characteristics:

Multiple network connection methods: Equipped with three network ports of 10Base-T (RJ-45), 10Base2 (BNC) and AUI, it can directly connect to the 10Base-T or 10Base2 network, through the AUI port and using compatible transceivers. It can also be connected to media such as 10Base5, 10BaseF or 10Broad36.

Support multiple communication protocols: Supports IEEE 802.2 logical Link Control Class I local area network and IEEE 802.3 medium (CSMA/CD medium access control, 10Mbps) local area network, provides Ethernet Global Data (EGD) for configuration and logic-based data exchange, and provides TCP/IP communication through SRTP.

Programming and configuration functions: It can be configured using IC641 programming software (version 6.02 and later), featuring complete PLC programming and configuration capabilities. It also provides comprehensive station management and diagnostic tools, facilitating users' network management and troubleshooting.

Firmware-related features: Pre-loaded firmware simplifies the installation process, and the firmware can be upgraded directly in the system via a PC connected to the RS-485 serial port, facilitating maintenance and updates.

Technical parameters:

Power supply requirements: The PLC power supply needs to provide +5V DC and +12V DC voltages. When it is +5V DC, the maximum backplane current is 2A, and when it is +12V DC, it is 0.5A.

Operating temperature: Ambient temperature ranges from 0 ° C to 55 ° C (32°F to 131°F).

Port configuration: In addition to the three network ports, there is also an RJ-11 serial RS-232 local station manager port for connecting terminals or terminal emulators to access the station manager software; A 15-pin D-type RS-485 software loading port for connecting to a PC running Logic Developer or Versapro programming software for firmware updates.

Status indication: It is equipped with four LED indicator lights, namely "Module OK", "Lan Online", "Serial Active" and "Status OK", which are used to display the operation and network status of the module.

Installation points: It is usually installed in the GE series 90-70 PLC rack, typically in the first available slot on the right side of the CPU or bus transmitter module (BTM). Before installation, the 12-bit default station address of the printed label on the module needs to be recorded. During installation, first turn off the power of the PLC rack, insert the module and fix it with screws, then connect it to the network through one of the three ports. Finally, set the run/stop switch of the CPU to "Stop" and turn on the power of the PLC rack.

Application scenarios

The PLC communicates with the upper computer

In the GE 90-30/70 series PLC system, the IC697CMM742 serves as an Ethernet gateway to achieve high-speed data interaction between the PLC and SCADA (Data Acquisition and Monitoring System), as well as HMI (Human-Machine Interface). For example:

In the rolling mill control system of the steel plant, the real-time data such as rolling pressure and temperature collected by the PLC are transmitted to the central monitoring room via Ethernet for engineers to remotely monitor and adjust parameters.

In the food production line, PLC and MES (Manufacturing Execution System) are connected to synchronize production data (such as output and equipment status) to the management system, achieving automated management of the production process.

Automobile manufacturing production line

In processes such as vehicle body welding and painting, the IC697CMM742 connects the PLC with the robot controller to achieve high-precision synchronous control. The welding robot adjusts its action trajectory based on the vehicle body positioning data sent by the PLC, and simultaneously feeds back parameters such as welding current and voltage to the PLC. The welding quality is monitored in real time through the Ethernet.

Energy and Power System

It is used in scenarios such as substation automation and generator set control, and supports high-speed communication with the Power Monitoring System (SCADA). In the wind farm, the wind turbine PLC transmits data such as wind speed and power generation to the central monitoring system through IC697CMM742, achieving remote dispatching and energy efficiency optimization of the wind turbine cluster.

Rail transit signal control

In the signal systems of subways and high-speed railways, the IC697CMM742 connects the PLC to the trackside equipment (such as signal machines and switch machines), and realizes the real-time monitoring of the train's operating status through Ethernet. The station PLC communicates with the train automatic monitoring system (ATS) through the Ethernet module, synchronizing information such as the train's arrival time and door status to ensure train operation safety.

Intelligent buildings and building automation

The PLC integrating subsystems such as air conditioning, elevators, and security systems uploads data to the building management system (BMS) via IC697CMM742. The PLC in the office building collects temperature, humidity and energy consumption data of each area and sends them to the BMS via Ethernet to achieve intelligent HVAC control and energy management.