Woodward MicroNet TMR Hardware 8262-1145

The MicroNet control is a 32-bit microprocessor-based digital controller that is programmable for many

types of applications in the control of:

• Gas Turbines

• Steam Turbines

• Hydro Turbines

• Diesel Engines

• Gas Engines

The MicroNet platform provides a flexible system to control any prime mover and its associated

processes such as high-speed control functions, system sequencing, auxiliary system control, surge

control, monitoring and alarming, and station control. The MicroNet platform is available in simplex,

redundant, and triple modular redundant (TMR) configurations. This manual covers only TMR based

control configurations. Please refer to MicroNet Plus manual 26166 for simplex and redundant based

control configurations using the MicroNet Plus CPU. Please refer to manual 26336 for information on

VxWorks Operating System tools used with the TMR5200 CPU module.

The MicroNet Operating System, together with Woodward’s GAP Graphical Application Program,

produces a powerful control environment. Woodward’s unique rate group structure ensures that control

functions will execute deterministically at rate groups defined by the application engineer. Critical control

loops can be processed within five milliseconds. Less critical code is typically assigned to slower rate

groups. The rate group structure prevents the possibility of changing system dynamics by adding

additional code. Control is always deterministic and predictable.

Synchronized inputs and outputs (I/O) are available for key control signals while distributed I/O can be

used for other less critical parameters.

The MicroNet platform provides several types of communications to program and service the control as

well as to interface with other systems (Plant DCS, HMI, etc.). Woodward’s GAP and Ladder Logic

programming tools are used to generate Application code. A service interface allows the user to view and

tune system variables. Several tools are available to provide this interface (see Engineering and Service

Access). Communication protocols such as TCP/IP, OPC, Modbus, and other current designs are

included so that the user can correctly interface the control to existing or new plant level systems.

The MicroNet TMR platform is expandable into multiple chassis as required by the system size and will

support any mix of I/O, including networked and distributed I/O. The MicroNet TMR main control chassis

is only available in one size with 18 VME slots. All slots are dedicated to the control section. The power

supply for the MicroNet TMR main control chassis is a separate chassis which connects to either the

lower right or left of the MicroNet TMR main control chassis. The power supply chassis contains

redundant power supplies.

The MicroNet TMR control may be expanded to a multi-chassis system using the Plus8 or Plus14 chassis

options. For field upgrades, the expansion racks may also be the older Simplex6 or Simplex12 chassis.

Each expansion chassis has dedicated power supply, control, and I/O sections located in a single

chassis. The expansion power supply architecture supports simplex or redundant power supplies.

2.1. MicroNet TMR

The TMR Main chassis provides slots for kernel power supplies, CPU’s, and twelve I/O Modules. This is the

basis of the TMR systems whether using the TMR5200 processor or the TMR040 processor. NOTE: Kernel

PS modules must be matched to the type of CPU being used. The system may be expanded to 3 I/O

chassis using RTN networks with the TMR5200 processors. With the RTN each CPU has access to the I/O

so I/O in the expansion chassis is considered Shared I/O.

With the TMR040 processors, Transceiver modules and copper or fiber cables are used to connect to

multiple chassis to accommodate additional system I/O requirements. In this case, I/O is dedicated to a

specific CPU.

2.1.1 MicroNet TMR Main Chassis

In the MicroNet TMR Main Chassis, whether the TMR040 or TMR5200 CPUs are used, the I/O modules

are associated with a particular Kernel. If that Kernel fails, the associated I/O modules are failed.

MicroNet TMR

MicroNet TMR Chassis

3 Kernel Power Supplies

3 TMR CPU Modules

4 I/O modules slots per Kernel

Expandable to a 4-rack system.

2.1.2.MicroNet TMR Power Supply Chassis

The MicroNet TMR Power Supply Chassis, contains two redundant TMR power supply modules. Power

supply modules come in low voltage DC, AC/DC, and high voltage AC/DC versions. Each module

supplies power to the Kernel PS Modules.

MicroNet TMR Power Supply Chassis

• 1 or 2 TMR Power Supply Chassis can be configured.

• (2) Redundant PS Modules per Chassis

• PS Modules are load sharing

• 3 Module versions available

• Low voltage DC

• 120 Vac / Vdc

• 220 Vac/Vdc

MicroNet TMR Hardware Kit with 4565-1115. 120V AC/DC

8262-1145

MicroNet TMR Hardware Kit with 4565-1115. 220V AC

8262-1146

MicroNet TMR Hardware Kit with 4565-1115. 24 VDC

8262-1147

MicroNet TMR Hardware Kit with 4565-253. 120V AC/DC

8262-1148

MicroNet TMR Hardware Kit with 4565-253. 220V AC

8262-1149

MicroNet TMR Hardware Kit with 4565-253. 24 VDC

8262-1150