GE 8521-EB-MT
The GE 8521-EB-MT is a PDO (Point Distributed I/O) module from the Mark VIe control system, designed for industrial automation, turbine control, and power generation applications.
General Specifications:
- Manufacturer: GE (General Electric)
- Model:GE 8521-EB-MT
- Series: Mark VIe (Part of the EX2100e or Mark VIeS family)
- Type: Point Distributed I/O Module (Digital Output)
- Function: Provides discrete (digital) output signals for control applications.
Hardware Specifications:
I/O Configuration:
- Channels: Typically 16 or 32 digital outputs (depends on exact variant)
- Output Type: Sourcing or sinking (depends on wiring)
- Voltage Rating:
- 24V DC (standard for industrial control)
- 48V DC (optional, depending on variant)
- Current Rating: 0.5A to 2A per channel (varies by configuration)
- Isolation: Optically isolated channels for noise immunity
Communication & Connectivity:
- Backplane Interface: Integrates with Mark VIe controller via PDBus (Point-to-Point Bus)
- Protocol Support:
- Modbus TCP/RTU (via Mark VIe controller)
- PROFINET (optional)
- Ethernet/IP (if configured)
Environmental Ratings:
- Operating Temperature: -20°C to +60°C
- Humidity: 5% to 95% (non-condensing)
- Vibration/Shock Resistance: Meets IEC 60068-2-6 (industrial standards)
Software & Firmware:
- Configuration Tool: ToolboxST (GE’s engineering software)
- Firmware Updates: Compatible with latest Mark VIe system releases
- Diagnostics: Supports real-time fault detection (short-circuit, overload, etc.)
Key Features:
- High-Density Digital Outputs – Controls relays, solenoids, and actuators.
- Hot-Swappable – Can be replaced without shutting down the entire system.
- Redundancy Support – Can be used in redundant configurations for critical systems.
- LED Indicators – Per-channel status LEDs for easy troubleshooting.
Applications:
- Turbine Control Systems (Gas/Steam/Hydro)
- Power Plant Automation
- Industrial Machine Control
- Safety Shutdown Systems
Documentation & Manuals:
For full details, refer to:
- GEH-6853 (Mark VIe System Guide)
- GEI-100746 (PDO Module Installation Manual)

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•Package: Original packing with cartons
Our Main Brands
DCS/PLC/TSI Manufacturers:
ABB, GE, Allen Bradley, Honeywell, Emerson, Bently Nevada, Prosoft, Siemens, Westinghouse, Triconex, Foxboro, ICS Triplex, Hima, Schneider, Yokogawa, Woodward, B&R, KEBA, etc.
Product Categories & Models
1. Distributed Control System (DCS)
- ABB:3AUA0000110429, SYSCON2 746924
- Invensys Foxboro:FBM214, FBM242, B0123HE
- Invensys Triconex:3625, 3700A, 3604E
- Woodward:5462-758B
- HIMA:F2-DO-16-02, F8650E
- Yokogawa:SAI143-S03 S1, F9342L-02
- Honeywell:51402497-200, 51403519-160, 51199194-100, CC-PDO801
- Emerson:KJ4001X1-NB1, 12P3368X012
2. Programmable Logic Controller (PLC)
- Rockwell/Allen Bradley:1734-IB8, 1734-OB8, 1769-L18ER-BB1B, 1756-IM16I
- ICS Triplex:T8461, T8850, T8403, T8431, T8831, T8310
- Schneider Modicon:140DDI85300
- GE Fanuc:IS210AEPSG2B, IS220UCSAH1A, IS215ACLEH1A, IS210AEAAH1B
- Siemens:6ES7331-1KF02-0AB0
- Prosoft:MVI46-DFNT
- Bachmann:MPC240
- Woodhead:9905-068 2301A
3. Turbine Supervisory Instrumentation (TSI)
- Bently Nevada:3500/22M, 138607-01, 3500/25, 3500/53, 3500/32M 149986-02
- EPRO:MMS6110, MMS6120, MMS6220, MMS6312, MMS6410, 6423, 6424
- ENTEK:EK C6622HS, XM124, 1440-SDM02-01RA
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