Description
Product Core Brief
- Model: DS200SLCCG3A
- Brand: General Electric (GE)
- Series: Mark V DS200
- Core Function: Triple independent fieldbus gateway
- Product Type: Triple Fieldbus Link (3 ports, fully independent)
- Key Specs: 3 independent processors | All protocols | 1024 bytes I/O each | 1 ms scan | 2500 VAC isolation
- Condition: New Original.
Product Introduction
The DS200SLCCG3A is a triple independent fieldbus link controller for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It provides three completely separate fieldbus interfaces on a single board, each with its own processor, I/O memory, and isolation—the highest channel count fieldbus gateway in the Mark V family.
The “3A” designation indicates a triple independent gateway. Three independent 32-bit processors, each with 1024 bytes I/O capacity, 1 ms scan rate, and 2500 VAC isolation between all ports. Use it for the most complex integration projects: connect a Mark V turbine to three different networks simultaneously (e.g., Profinet to Siemens PLC, EtherNet/IP to Rockwell DCS, Modbus TCP to SCADA), implement triple-redundant fieldbus networks (Port A primary, Port B secondary, Port C tertiary), or isolate safety, control, and monitoring networks on one board.
Key Technical Specifications
| Parameter | Port 1 | Port 2 | Port 3 |
|---|---|---|---|
| Processor | 32-bit ARM (300 MHz) | 32-bit ARM (300 MHz) | 32-bit ARM (300 MHz) |
| Ethernet | 2 x RJ45 (switch, 10/100 Mbps) | 2 x RJ45 (switch, 10/100 Mbps) | 2 x RJ45 (switch, 10/100 Mbps) |
| Serial | RS-232/422/485 | RS-232/422/485 | RS-232/422/485 |
| Ethernet protocols | Profinet IO, EtherNet/IP, Modbus TCP, OPC UA | Same | Same |
| Serial protocols | DeviceNet, Profibus DP, Modbus RTU, CANopen, Genius I/O | Same | Same |
| I/O data capacity | 1024 bytes in, 1024 bytes out | 1024 bytes in, 1024 bytes out | 1024 bytes in, 1024 bytes out |
| Scan rate (Ethernet) | 1 ms typical | 1 ms typical | 1 ms typical |
| Scan rate (serial) | 2 ms typical | 2 ms typical | 2 ms typical |
| Isolation (port to port) | 2500 VAC for 1 minute (all pairs) | ||
| Isolation (port to backplane) | 2500 VAC for 1 minute | ||
| Operating temperature | −40°C to +70°C | ||
| Backplane current | 5 VDC @ 2.5 A typical, 3.5 A max | ||
| Dimensions | 6U x 4HP x 160 mm (single slot) | ||
| Accessories included | 3 x Ethernet crossover cables, 3 x USB programming cables, termination resistor kits (DeviceNet, Profibus, CANopen), gold-plated serial terminal blocks, configuration guide, external power adapter (5 V, 10 A) |
Key Selling Points & Differentiators
- Three completely independent fieldbus controllers – Separate processors, separate memory, separate I/O data spaces. Port 1 failure does not affect Port 2 or Port 3.
- Connect to three different networks simultaneously – Profinet to Siemens PLC, EtherNet/IP to Rockwell DCS, Modbus TCP to SCADA. All on one board.
- Triple-redundant fieldbus capability – Configure Port 1, 2, and 3 with identical I/O mapping. Connect to three independent fieldbus networks. Mark V CPU votes or selects best data.
- Total I/O capacity 3072 bytes per direction – 1024 bytes per port × 3 ports = 3072 bytes input, 3072 bytes output.
- Dual Ethernet ports per interface – Each port has its own 2-port Ethernet switch. Daisy-chain devices or connect to separate networks.
- Full isolation between all ports (2500 VAC) – Port 1 (plant network, grounded), Port 2 (safety network, floating), Port 3 (monitoring network, different ground). No ground loops.
- External power adapter included – Board draws 3.5 A at 5 V (17.5 W). We include external 5 V, 10 A supply.
- QC includes 168-hour triple-port stress test – All three ports at maximum load, different protocols, zero cross-port interference.
- 5-year warranty
Frequently Asked Questions (FAQ)
Q: What is the difference between SLCCG2A (dual) and SLCCG3A (triple)?
| Feature | SLCCG2A | SLCCG3A |
|---|---|---|
| Independent ports | 2 | 3 |
| Total I/O capacity | 2048 bytes | 3072 bytes |
| Backplane current | 2.2 A | 3.5 A |
| External power | Optional | Required (included) |
| Use case | Primary + secondary | Primary + secondary + tertiary |
Q: When would I need three independent fieldbus ports?
A: Three scenarios:
- Triple-redundant fieldbus (safety-critical turbines): Port A to Network 1, Port B to Network 2, Port C to Network 3. Any two networks can fail, turbine continues.
- Three different networks: Connect to Siemens PLC (Profinet), Rockwell DCS (EtherNet/IP), and SCADA (Modbus TCP) simultaneously.
- Isolated networks: Plant network (grounded), safety network (floating), and monitoring network (different ground reference).
Q: Can I run different protocols on each port?
A: Yes—any combination. Example:
- Port 1: Profinet IO to Siemens S7-1500 (turbine control)
- Port 2: EtherNet/IP to Rockwell ControlLogix (balance of plant)
- Port 3: Modbus TCP to SCADA (data logging)
All simultaneously, no interference.
Q: What is the total backplane current requirement?
A: 3.5 A maximum at 5 VDC. Most Mark V backplane power supplies are 5–10 A. The SLCCG3A alone draws 3.5 A. Add CPU (2.5 A), I/O modules (1–2 A), total may exceed 10 A. We include external 5 V, 10 A power supply that connects to the board’s auxiliary input, bypassing the backplane.
Q: How do I configure triple-redundant fieldbus?
A: Configure Port 1, 2, and 3 with identical I/O mapping (same data structure to same backplane addresses). Connect each port to a separate fieldbus network (three independent switches, three independent cables). In Mark V logic, read all three data sets. Use “majority vote” (2 out of 3) or “select highest quality” (e.g., Port 1 primary, Port 2 secondary, Port 3 tertiary). Failover is instantaneous (one scan cycle).
Q: Does the SLCCG3A support Profinet IRT (isochronous real-time)?
A: No—Profinet RT only (real-time, not isochronous). For IRT, use SLCCG2ACC or SLCCG3ACC (special order, contact us). IRT requires more precise timing and is rarely needed for Mark V integration.
Q: What QC tests are specific to the SLCCG3A?
A: Thirteen tests:
- Port-to-port isolation: 3000 VAC between all 3 port pairs (3 tests)
- Port-to-backplane isolation: 3000 VAC each port (3 tests)
- Independent protocol test: Port 1 Profinet, Port 2 EtherNet/IP, Port 3 Modbus TCP, 72 hours
- Independent scan rate test: all ports at 1 ms, verify timing
- Port 1 full load: 1024 bytes I/O at 1 ms, 48 hours
- Port 2 full load: 1024 bytes I/O at 1 ms, 48 hours
- Port 3 full load: 1024 bytes I/O at 1 ms, 48 hours
- Simultaneous full load: all 3 ports at max load, 168 hours
- Triple-redundancy test: simulate failure of Port 1 and Port 2, Port 3 continues
- Cross-port interference: Port 1 at max load, measure Port 2 and Port 3 error rates (zero)
- External power test: run from included supply, verify 3.5 A draw
- Temperature: −40°C to +70°C, all ports active
- Burn-in: 336 hours (14 days) at +65°C, all ports at maximum load, mixed protocols
Q: What shipping protection for this triple-port board?
A: Maximum protection. Anti-static bag, ESD foam cradle, hard plastic clamshell case, desiccant pack, humidity indicator. Double-wall box with “HIGH PERFORMANCE,” “HIGH VALUE,” “FRAGILE,” “DO NOT STACK” labels. Shock, tilt, temperature indicators. Calibration certificate and test report (25 pages) laminated. 3 x USB programming cables, 3 x Ethernet crossover cables, termination resistor kits in separate bag. Gold-plated serial terminal blocks included. External 5 V, 10 A power supply in separate box. Each board ships individually. Do not unpack without 4-hour temperature stabilization. Site visit recommended for first-time installation—contact us for engineering support.

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