Woodward easYgen-3500XT

Compatibility

Documented Modbus TCP and Modbus RTU read path

Woodward's exact-family manuals document a Modbus/TCP server over Ethernet and a configurable Modbus RTU slave over RS-485. They define visualization data, address conventions, data types and scaling for protocols including 5010 and 5016. Edge can act as a read-only Modbus client after the installed controller, software release and selected protocol are matched to the corresponding manual.

easYgen-3500XT-P1, P1-LT, P2 or P2-LT only. Record the full Woodward part number, installed software release, application mode, parameter 3184 protocol selection and approved network interface. Use function 0x03 only against the reviewed visualization range. Do not send credentials or use functions 0x06 or 0x10. Do not issue start, stop, shutdown, acknowledgement, breaker, synchronising, load-share, power, frequency, voltage, power-factor, parameter, LogicsManager or output commands.

Connect it with

• 
  Modbus Interface ZMB-3X
  From €399 ex VAT Configure Modbus Interface
• 
  Gateway ZGW-20
  From €899 ex VAT Configure Gateway

Models

Specifications

Woodward separates visualization data from remote-control and configuration data. Visualization starts at Modicon address 450001 and supports read holding registers with function 0x03, including block reads of 1 to 128 registers. The separate control and configuration range supports functions 0x06 and 0x10 and is excluded from this guide.^2, 3

Exact front-panel variants

P1 8440-2085, P1-LT 8440-2086, P2 8440-2088 and P2-LT 8440-2089¹

Applications

Complex paralleling, prime power, CHP, peak shaving, emergency, import/export, islanded and utility-parallel operation¹

Communications

Three Ethernet ports, three CAN ports, one RS-485 interface, USB and an interface expansion slot; Modbus TCP slave and Modbus RTU slave roles are published¹

Measurement inputs

Three-phase generator voltage and current, three-phase mains voltage, single-phase mains or ground current and busbar voltage according to package¹

Voltage and current

Direct voltage measurement up to 690 VAC; generator current inputs selectable for 1 A or 5 A¹

Software manuals retained

P1 manual 37998 for release 2.16-0; P2 manual 37995 for release 2.13-0^2, 3

Visualization protocols

Protocol selection includes legacy 5003 and 5010 plus XT protocols 5014 and 5016; parameter 3184 records the active choice^2, 3, 4

Environment

Standard front-panel variants operate from -20 to +70 °C; LT variants from -40 to +70 °C; front protection IP66 with screw fastening or IP54 with clamp fastening, rear IP20¹

Interface

Documented measurements and integration boundaries for easYgen-3500XT.

• Protocol 5016 visualization includes generator frequency, voltage, current, active power, reactive power and power factor, with scaling registers that must be applied before publication.
• Mains and busbar voltage and frequency, mains power and selected load-sharing system values are available where the exact model and application provide them. P2-only fields must not be assigned to P1 devices.
• Engine speed, battery voltage, start count, maintenance interval, configurable analogue values, controller mode, breaker feedback, operating states, relay states and alarms are documented as visualization data. Their source and meaning still depend on the commissioned sensors, ECU, I/O and logic configuration.
• Protocol 5010 is retained for backward compatibility and is the documented default; Woodward recommends protocol 5016 where an application contains only easYgen-3000XT controllers. The selected protocol is part of every point-set record.
• Remote start, stop, shutdown, acknowledgement, breaker commands, synchronising, setpoints, parameters and output writes remain outside this guide even though the manuals document them on the same Modbus interface.

Setup

1. Photograph the type label and record the exact Woodward part number, P1 or P2 package, LT status, serial number, installed software release, application mode and current configuration archive.

2. Have the generator controls owner identify the Ethernet or RS-485 interface approved for monitoring.

   Keep load-sharing networks, ToolKit access and operational control paths separate unless the owner explicitly designs the shared traffic.

3. Record parameter 3184 and bind the point list to protocol 5010 or 5016 and the matching P1 or P2 manual.

   Preserve the Modicon and transmitted bus-address convention, data type, scaling register, unit and model restriction for every point.

4. Configure the Edge client for function 0x03 only.

   Do not store or transmit controller credentials and block functions 0x06 and 0x10 in the client and network policy.

5. Read identity, protocol ID and a small set of generator measurements first.

   Compare frequency, voltage, current, power, operating mode and breaker feedback with the easYgen display and electrical reference in a safe operating state.

6. Test stale communications, controller restart, unavailable ECU or sensor values and restoration without issuing a command.

   Revalidate after any controller, firmware, protocol, application, logic or network change.

Common questions

Can Edge read an easYgen-3500XT over Modbus TCP?

Yes, as a protocol-compatible read-only integration. Woodward documents the Modbus/TCP server and visualization tables. The exact part number, software release, active protocol and address convention must be recorded before points are released.^2, 3

Can the RS-485 port be assumed to use Modbus RTU?

No. Woodward describes a freely configurable RS-485 Modbus RTU slave. Confirm that role, slave address, serial settings and reply delay on the commissioned controller before connecting Edge.^2, 3

Should a new easYgen-3000XT installation use protocol 5010 or 5016?

Woodward states that 5010 remains the default for backward compatibility and recommends 5016 where the application contains only easYgen-3000XT controllers. Read parameter 3184 and use the matching table rather than assuming either protocol.⁴

Can Edge start, stop or parallel a generator through this interface?

Not under this guide. The manuals document remote control and parameter writes, including start, stop, shutdown, breaker and setpoint functions. Those functions require a separate engineered control design, interlocks, permissions, failure analysis and physical acceptance.^2, 3