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
MicroNet TMR Hardware Kits
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