Rockwell-automation AADvance Controller Solutions Handbook Manual de usuario descargar pdf (Pagina 96)

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Document: 553631

(ICSTT-RM447J_EN_P) Issue: 09:

Solutions Handbook (AADvance Controller)

T9110 Processor Module

The T9110 processor module is the central processing unit of an

AADvance controller. The processor module carries out the

following critical process and safety controller tasks:

 Execution of the AADvance Safety Kernel to solve

application logic

 Interfacing with the controller I/O modules, reading and

processing input data and writing output data

 Communication with other processor modules, both locally

and across the control network

 Initiation of periodic diagnostics for the controller

 Communication with other systems such as HMIs

 Message encapsulation and verification for secure channel

communication to other nodes

The processor module is galvanically isolated from external

power supplies and data links so that any faults developed in the

field cannot cause the module to fail. The module will continue

to operate in the event of failure of one of its dual redundant

24V dc power supplies. The module incorporates under- and

over-voltage protection for its internal power supplies, which

provide a 'power valid' signal to the modules own diagnostics

microprocessor.

A processor module has two functionally independent,

electrically isolated Ethernet ports. Each port is separately

configurable for multiple protocols such as Modbus RTU, Open

Modbus/TCP and proprietary AADvance protocols, and its data

is available to every processor in the controller.

In addition to the front panel LEDs a Fault Reset button is

provided for the user to reset any fault indications on an I/O

module before the controller is restarted.

Two serial communications ports per processor are provided for Modbus RTU slave

communications. These ports are also functionally and electrically isolated from each

other. They support RS-485 (4– and 2–wire) communications and can be configured to

support asynchronous data rates from 1,200 to 115,200 baud.

The processor periodically initiates internal diagnostic tests which, together with a

watchdog circuit, monitor the processor internal performance. If the tests detect a

serious fault, the processor module will shut down. A controller can use one, two or

three processor modules. Using two or three processor modules provides a fault

tolerant processor architecture.

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