GE DS4815COME

Parameters

Advantages & Features

• Ethernet + Serial + I/O in One Slot – The GE DS4815COME combines 8 digital inputs, 8 digital outputs, 2 serial ports, and 2 Ethernet ports in a single module, replacing up to four separate modules and significantly reducing rack space.

• Dual Ethernet with Protocol Flexibility – The GE DS4815COME supports Modbus TCP, OPC UA, and DNP3, enabling direct integration with plant DCS, SCADA, and remote monitoring systems without additional gateways.

• High-Voltage Digital I/O – The GE DS4815COME directly interfaces with 125VDC and 240VAC field circuits, eliminating external relays for most applications.

• Configurable Communication Protocols – All communication ports on the GE DS4815COME can be independently configured, supporting mixed protocols (e.g., Ethernet = Modbus TCP, Serial = Modbus RTU, Serial 2 = DNP3).

• Isolation Between Sections – The GE DS4815COME provides 500VDC isolation between communication (Ethernet/serial) and digital I/O sections, preventing ground loops and noise coupling.

• Built-in Web Server – The GE DS4815COME includes a secure HTTPS web interface for module configuration and status monitoring.

Application Cases

• Turbine Auxiliary System with Network Integration – The GE DS4815COME connects to a gas chromatograph via serial (Modbus RTU), monitors valve position switches (8 inputs), controls solenoid valves (8 outputs), and provides data to plant SCADA via Modbus TCP over Ethernet.

• Compressor Station with Remote Monitoring – The GE DS4815COME reads pressure and temperature alarms (8 inputs), controls anti-surge valves (8 outputs), communicates with VFDs via serial (Modbus RTU), and transmits performance data to a control center via OPC UA over Ethernet.

• Generator Hydrogen Monitoring System – The GE DS4815COME monitors hydrogen purity analyzer status, controls purge valves, and provides data to the Mark VIe controller via Ethernet, while also serving as a Modbus TCP gateway to external condition monitoring systems.

• Small Skid Control – The GE DS4815COME provides all necessary I/O and communication for a small pump skid, including valve control, status monitoring, and serial communication to a flow computer, all in one slot.

Competitor Comparison

The GE DS4815COME is the only module in the Mark VIe family combining Ethernet, dual serial, and digital I/O in a single slot — a capability not offered by any competitor in a single module.

Selection Suggestions

• Choose the GE DS4815COME when your application requires digital I/O (8 in, 8 out) plus both Ethernet and serial communication within a single rack slot. It is ideal for turbine auxiliaries requiring SCADA integration and serial device connections.

• If your application requires Ethernet only (no serial), consider the DS4815COE variant. For serial-only, choose DS4815COMD (4 ports) or DS4815COMC (2 ports).

• For SIL 2 safety applications, the GE DS4815COME is not rated SIL 2 — use separate safety-rated modules.

• Assign Ethernet protocols based on your plant network infrastructure: Modbus TCP for DCS integration, OPC UA for SCADA/condition monitoring, DNP3 for utility communication.

• Pair the GE DS4815COME with TB500-HV for digital I/O connections, standard Ethernet cables for network ports, and DB9 cables for serial connections.

Precautions

• Ethernet Network Configuration – Assign unique IP addresses to each Ethernet port. The GE DS4815COME supports dual-stack operation (both ports can be on different subnets). Configure appropriate subnet masks and gateways.

• Ethernet Redundancy – The dual Ethernet ports do not support PRP/HSR redundancy (this is reserved for DS3860 series modules). They can be used as separate communication channels to different networks.

• Serial Port Configuration – Each serial port can be independently configured for RS-232 or RS-485 (software selectable). Verify the correct mode before cabling.

• RS-485 Termination – Use 120Ω termination resistors at both ends of the bus. The GE DS4815COME includes selectable termination per RS-485 port (software configurable).

• Serial Cable Length – RS-232: max 15m. RS-485: max 1200m (at 9600 baud).

• Output Grouping – All outputs on the GE DS4815COME share a common return. All outputs must be powered from the same voltage source.

• Output Current Limit – Total output current is limited to 8A (combined across all 8 channels). Ensure the total load does not exceed this limit.

• Wetting Current – For dry contact inputs, enable wetting current (5–20mA) to ensure reliable switching.

• Firewall Considerations – If the GE DS4815COME communicates across firewalls, ensure required ports are open: Modbus TCP (502), OPC UA (4840), HTTPS (443).

• Power Supply – The GE DS4815COME draws 550mA from 5V plus output load current. Ensure the power supply module has sufficient capacity.

• Firmware – The GE DS4815COME requires Mark VIe controller firmware v7.5 or higher for full Ethernet and serial protocol support.

• Cybersecurity – The GE DS4815COME includes a web server. Change default passwords and use HTTPS for secure access. Disable unused protocols to reduce the attack surface.

• ESD Handling – Use ESD-safe practices when handling the GE DS4815COME. Ethernet ports, serial ports, and output stages are sensitive to electrostatic discharge.