Description
Product Overview
Part Number: 5501-471 Manufacturer: Woodward（伍德沃德） Product Series: MicroNet Plus / NetCon 5000B Turbine Control System Type: NetCon SIO Serial I/O Communication Module
5501-471 is the NetCon SIO serial communication module for Woodward MicroNet Plus turbine control platform. It acts as a serial gateway between the MicroNet controller and external instruments, HMIs, PLCs and field devices. This module provides multi-channel serial interfaces supporting RS232, RS422 and RS485, running Modbus RTU / ASCII protocol. It can be used in simplex or TMR redundant rack configurations for gas turbine, steam turbine and large reciprocating engine control in power generation plants. It is a drop-in upgrade replacement for older 5501-470 module, with higher baud rate and larger data buffer.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 5501-471 |
| Module Type | NetCon SIO Serial I/O Module |
| Applicable System | Woodward MicroNet Plus / NetCon 5000B |
| Serial Ports | 2 × RS232; 2 × configurable RS232/422/485 |
| Max Baud Rate | 115.2 kbps, software programmable baud & parity |
| Buffer | 128-byte receive buffer, 32-byte transmit buffer |
| Supported Protocol | Modbus RTU, Modbus ASCII |
| Power Supply | 24 VDC |
| Mounting | VME-style rack slot for MicroNet chassis |
| Operating Temperature | 0 ~ +55°C |
| Conformal Coating | PCB with protective coating for harsh industrial cabinet |
| Weight | Approx 0.85kg |
| Compatibility | Fully compatible with simplex and TMR redundant MicroNet systems |
Engineer Notes
- 5501-471 is a serial communication card, not CPU or analog I/O board, installed in MicroNet VME rack.
- Direct drop-in replacement for 5501-470, better communication performance and higher baud speed.
- The four serial ports can be individually configured to connect HMI, vibration monitor, DCS host and local display.
- Supports TMR triple modular redundant turbine control rack for power plant critical safety control.
- RS485/422 field wiring needs shielded twisted pair cable, single-point shield grounding to reduce EMI interference.
- Front panel LED indicators for port transmit/receive, module run and fault diagnosis for on-site troubleshooting.
- Not hot-swappable; cut rack power before inserting or removing the module.
- Widely used as spare part for power plant turbine control maintenance, retrofit and system upgrade.
Pre-Shipment Test Protocol
- Visual inspection of PCB, front D-Sub connectors, housing, label and component condition
- 4 serial port communication functional test, verify RS232 / RS485 / RS422 signal transmission
- Modbus RTU communication simulation test
- Receive & transmit buffer function verification
- LED indicator status check
- Backplane connector continuity and insulation resistance test
- Part number and revision verification
- Anti-static & shockproof packaging inspection
Buyer FAQ
Q: Is Woodward 5501-471 new original? A: We supply brand new original Woodward units, 12-month warranty, factory test certificate available upon request.
Q: What is 5501-471 used for? A: It is NetCon SIO serial communication module for MicroNet turbine control system, used for Modbus serial communication with external devices.
Q: What is the difference between 5501-471 and 5501-470? A: 5501-471 upgraded version, higher max baud rate and bigger data buffer, form-fit-function compatible replacement for 5501-470.
Q: Can it work in TMR redundant MicroNet rack? A: Yes, 5501-471 supports simplex and TMR triple redundant architecture for turbine control.
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