Interface Type:2 x 10/100 Mbps Ethernet
Communication Protocols:TCP/IP,UDP,Modbus TCP
Installation Location:Mark VIe Control Cabinet
Insulation Rating:IP20
Technical Specifications
Product Model:DS200SDCCG1A
Manufacturer:General Electric(GE)
Product Type:Mark VIe Communication Interface Module
Series:Mark VIe Gas/Steam Turbine Control System
Function:Ethernet Communication
Number of Ports:2
Port Type:10/100 Mbps auto-sensing Ethernet port(RJ45)
Communication Protocols:
TCP/IP
UDP
Modbus TCP/IP
SNMP(Simple Network Management Protocol)
DHCP(Dynamic Host Configuration Protocol)
IGMP(Internet Group Management Protocol,for multicast)
Operating Mode:Supports switch mode or router mode(depending on configuration)
Network Redundancy:Supports Spanning Tree Protocol(STP/RSTP)or GE proprietary redundancy protocol provides network loop redundancy.
Data Rate:10 Mbps or 100 Mbps(auto-negotiating)
Duplex Mode:Full-duplex/Half-duplex(auto-negotiating)
MAC Address Table:Supports standard MAC address learning and forwarding
VLAN Support:Supports IEEE 802.1Q VLAN tagging(optional)
Power Supply:Powered by the Mark VIe chassis backplane bus(typically+5V,+3.3V)
Operating Temperature:0°C to 55°C(32°F to 131°F)
Storage Temperature:-40°C to 85°C(-40°F to 185°F)
Relative Humidity:5%to 95%RH,non-condensing
Mounting Format:Standard 3U Eurocard(100mm x 160mm)plugs into the Mark VIe I/O rack.
Connectors:Two RJ45 Ethernet ports on the front panel,connected to the chassis bus via the backplane.
Indicators:Front panel LED indicates power.Power(PWR),Link/Activity(LNK/ACT),Speed(SPD)status
Weight:Approximately 0.5 kg
Certifications:CE,UL,CSA(Meets industrial environment requirements)
Product Overview
The DS200SDCCG1A is the”information highway gateway”for the GE Mark VIe distributed control system.It’s not a CPU responsible for core control logic(such as the IS220PCHPG1A),nor is it an I/O module that directly acquires field signals(such as the DS200TBC series).Instead,it’s an interface card dedicated to network communications.
Its core mission is to enable the Mark VIe control system to connect to the Internet.In modern power plants,the Mark VIe needs to exchange data with multiple systems:
Communication with the human-machine interface(HMI):Real-time data such as turbine speed,temperature,pressure,vibration,and alarms is sent via Ethernet to an operator station(such as the SPEEDTRONIC™Mark VIe HMI),allowing operators to monitor the entire unit on a screen.Integration with Higher-Level Systems:Uploads critical operating data to the power plant’s distributed control system(DCS)or safety instrumented system(SIS)for integrated plant-wide monitoring.It also receives load commands from the DCS.
Communication with Historical Databases:Sends operating data,event records,alarm logs,and other information to a historical database server for performance analysis,fault tracing,and report generation.
Remote Diagnosis and Maintenance:Allows GE technical support engineers to connect remotely via the network to diagnose system issues and download configurations or firmware updates.
The DS200SDCCG1A provides two 10/100 Mbps auto-sensing Ethernet ports.These ports can be configured as follows:
Redundant Network:Connects to two independent Ethernet switches,forming a ring or dual-star topology.If one network link fails,data automatically switches to the other,ensuring uninterrupted communication and meeting high availability requirements.
Switch Mode:Acts as a small switch,allowing other devices(such as other controllers and HMI stations)to access the network.
Different VLANs:Connects to different network segments(such as the control network and information network).It receives power and exchanges data with controllers(TCEC,TCQA,etc.)via the Mark VIe chassis’backplane bus.The front panel RJ45 port connects to a standard network cable.Its firmware and configuration are managed by the Mark VIe master controller.It serves as the critical bridge between the entire control system and the outside world.
Key Features and Benefits
The DS200SDCCG1A’s strengths lie in three key areas:high speed,reliability,and integration.
High speed is fundamental.It provides 10/100 Mbps Ethernet bandwidth,sufficient to carry the massive amounts of real-time data streams generated by the Mark VIe system(such as high-speed sampled data and video surveillance streams,if integrated).This ensures smooth HMI display and timely data updates,avoiding the bottlenecks of legacy serial communications.
Reliability is key.Support for network redundancy protocols(STP/RSTP)forms the foundation for building high-availability industrial Ethernet networks.In critical facilities like power plants,a single point of failure in the network can lead to a loss of connectivity,with serious consequences.The DS200SDCCG1A’s redundant design maximizes the control system’s online status.Its rugged industrial-grade design adapts to the control room’s electromagnetic environment,temperature,and humidity.
Integration is its value.Using standard open protocols such as TCP/IP and Modbus TCP,the DS200SDCCG1A greatly simplifies integration of the Mark VIe system with third-party systems(DCS,MES,and ERP).Without complex gateways or protocol conversion,seamless data flow is achieved,laying the foundation for smart power plants and digital operations and maintenance.
The GE DS200SDCCG1A is a dedicated Ethernet communication interface module designed for the Mark VIe turbine control system.It serves as the critical gateway,enabling high-speed,reliable data exchange between the Mark VIe controller and external networks.Featuring two 10/100 Mbps auto-sensing Ethernet ports,it supports standard TCP/IP,UDP,and Modbus TCP/IP protocols,facilitating seamless integration with Human-Machine Interfaces(HMIs),Distributed Control Systems(DCS),Historian databases,and enterprise networks.Its key strength lies in supporting network redundancy(via STP/RSTP or GE proprietary protocols),ensuring continuous communication availability even during link failures,which is paramount for the reliable operation of gas and steam turbine power plants.By providing a robust and standardized communication path,the DS200SDCCG1A enhances system visibility,enables remote monitoring and diagnostics,and supports the necessary integration for modern,data-driven power plant operations.
Application areas
DS200SDCCG1A The DS200SDCCG1A is a very clear application area:all gas turbine and steam turbine units using the GE Mark VIe control system.This includes:
Combined cycle power plants:Serves as the communication hub for the core control system.
Simple cycle power plants:Peaking units for rapid startup and shutdown.
Industrial drive applications:Gas turbines driving large compressors,pumps,etc.
Combined heat and power(CHP)/distributed energy resource(DER)projects.
Marine propulsion systems(select applications).Whenever a Mark VIe system needs to communicate with an HMI,DCS,historian,or other system via Ethernet,the DS200SDCCG1A or its equivalent(e.g.,the DS200SDCCG2A,which may be a later version)is an essential component.
Selection Guide/Purchasing Recommendations
When choosing the DS200SDCCG1A,pay close attention to detail.First,ensure the exact model number matches.Confirm that it’s the DS200SDCCG1A.Pay attention to whether the hardware revision is compatible with the existing system.GE sometimes releases replacements(such as the G2A)with the same functionality but different revision numbers,so compatibility must be verified.Second,ensure genuine parts.The control system’s communication module firmware is deeply integrated with the entire system.Using non-genuine or refurbished parts can lead to unstable communication,protocol incompatibilities,or even system crashes.Third,confirm the system configuration.Understand the module’s purpose in your system(is it for the HMI network,DCS network,or something else?)and the network topology(is redundancy required?).Fourth,consider the spare parts strategy.For critical units,it’s recommended to have at least one DS200SDCCG1A on hand.A network module failure can cause a loss of connectivity,severely impacting operations.Fifth,ensure technical support.After replacing a replacement,an engineer may need to verify the correct network configuration(IP address,subnet mask,gateway,VLAN settings,etc.).
Frequently Asked Questions(FAQ)
Q:Is the DS200SDCCG1A a CPU?
A:No.It’s a communication interface module.The Mark VIe’s core control is handled by CPU modules such as the TCEC(main controller)and the TCQA(I/O processor).The SDCCG1A is only responsible for network communication.
Q:Does it require a separate power supply?
A:No.It plugs into the Mark VIe rack and draws its required power(+5V,+3.3V)from the rack’s backplane bus.
Q:How do I configure its IP address?
A:Network parameters such as the IP address are typically configured in the Mark VIe configuration software(such as ToolboxST)and downloaded to the main controller.The main controller then passes this configuration information to the SDCCG1A module.Configuration can also be performed through a network-connected HMI or using dedicated tools.
Q:Do both Ethernet ports have to be used?
A:Not necessarily.You can choose to use one or both ports depending on the network design.For high reliability,it is generally recommended to configure it in redundant mode,using two ports connected to different switches.
Q:What is the difference between it and the DS200SDCCG2A?
A:The DS200SDCCG2A may be an updated or replacement version of the DS200SDCCG1A,and may include improvements or enhancements in hardware platform,firmware functionality,performance,or supported protocols.Please refer to GE’s official documentation for specific differences.When purchasing spare parts,please confirm whether the G2A can fully replace the G1A.
Related Products
IS220PCHPG1A/IS220PCHPG2A:Mark VIe main controller(CPU)module.
DS200TBC:Mark VIe I/O daughter card(such as TBCJ,TBCK,etc.),used to connect field signals.
DS200SCAFG1A:Mark VIe system control and application processor(SCA)module,which may integrate some communication functions.
DS200SLCCG1A:May be a similar or specialized module to the SDCCG1A.
DS200CCUEG1A:Mark VIe control processor unit(CCU),one of the core control units.GE ToolboxST:Engineering configuration and maintenance software for the Mark VIe system.
Mark VIe HMI Station:Operator station,communicates with the SDCCG1A via Ethernet.
Industrial Ethernet switch:Used to build the control network.
GE Speedtronic Mark VIe Control Cabinet:Chassis where modules are installed.
Installation and Maintenance
Pre-installation Preparation:When replacing this DS200SDCCG1A,safety is paramount.Always perform this operation only when the system is shut down or hot-swappable without affecting operation.Wear an anti-static wrist strap.Align the connector with the designated slot on the Mark VIe rack(usually in the I/O rack or communications rack)and push firmly until it locks securely.Key Step:Check that the network cable is securely connected to the RJ45 network port on the front panel and that the other end is connected to the power cord.

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