Rockwell-automation AADvance Controller Solutions Handbook Instrukcja Użytkownika Pobierz pdf (Strona 110)

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Document: 553631

(ICSTT-RM447J_EN_P) Issue: 09:

Solutions Handbook (AADvance Controller)

T9431/2 Analogue Input Module, 8/16 Channel

The T9431/2 analogue input module monitors eight (T9431) or

sixteen (T9432) isolated analogue input channels and measures

input current in the range 0mA to 24mA. Each channel provides

digital state and analogue data to the processor for process

monitoring, line monitoring and field fault detection.

The input module provides local module and channel status

indications through its front panel LEDs, the same indications

can be connected to application variables and viewed at the

Workbench. Comprehensive diagnostics at both system and

module levels provide clear indications which help rapid

maintenance and repair.

The module incorporates signal and power isolation circuits,

which separate each input channel from the rest of the system,

protecting the controller from field faults. An independent

watchdog arrangement monitors the module operation and

provides additional fault containment by a shutdown mechanism

should a fault occur.

These modules mate with the T9831/2/3 Analogue Input

termination assemblies. When analogue modules are installed in

a dual or TMR configuration they provide fault tolerant input

functionality. Hence, plant maintenance personnel can replace

input modules without interrupting the input data flow to the

processor modules.

Analogue Input Line Monitoring

Each analogue input module is set up through the AADvance Workbench. Monitoring

levels for each analogue input channel are configurable at the module and the channel

level. The default parameters are

 Fault: 0 to 3.8mA

 Normal: 3.8 to 22.0mA

 Fault: > 22.0mA

Each input has five configurable voltage bands (there are eight distinct switching

thresholds to allow hysteresis), each of which can be adjusted to provide line

monitoring and field device diagnostics.

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Rockwell-automation AADvance Controller Solutions Handbook Instrukcja Użytkownika Strona 110