Diagnostics and Troubleshooting - User Interface

Table 30 - Scanner Diagnostics

Diagnostic

Number

Possible Cause

Scanner Action

User Action

Condition

of

 

 

 

 

Strobes

 

 

 

 

 

 

 

 

Watchdog Reset

3

Watchdog reset resulting from

Scanner restarts and

1. Cycle power to the scanner

 

 

software failure

requests configuration

2. Upgrade scanner software

 

 

 

from the main CPU.

 

 

 

 

3. Replace scanner module

 

 

 

 

4. Contact Honeywell Personnel.

 

 

 

 

 

Prefetch abort

3

CPU failed when attempting to

See watchdog reset

1. Cycle power to the scanner

CPU exception

 

fetch an instruction from the

 

2. Isolate system from noise and

 

 

prefetch register.

 

 

 

 

 

cycle power to the scanner

 

 

 

 

3. Replace scanner module

 

 

 

 

 

Address error

3

The reserved exception

See watchdog reset

See Prefetch abort CPU

CPU exception

 

occurred for an unknown

 

exception

 

 

reason.

 

 

 

 

 

 

 

Undefine

3

Bad Instruction Detected

See watchdog reset

See Prefetch abort CPU

instruction CPU

 

 

 

exception

exception

 

 

 

 

 

 

 

 

 

Data abort CPU

3

CPU failed when attempting to

See watchdog reset

See Prefetch abort CPU

exception

 

access data.

 

exception

 

 

 

 

 

Software interrupt

3

Spurious Interrupt

See watchdog reset

See Prefetch abort CPU

exception

 

 

 

exception

 

 

 

 

 

Vector error

3

Interrupt vectors in RAM were

Interrupt vectors were

See Watchdog reset

 

 

corrupted

restored

 

 

 

 

 

 

Flash write error

4

Flash failed to burn properly.

The boot code is the

Do a code download.

 

 

 

only software running.

 

 

 

 

This software waits

 

 

 

 

for a request to burn

 

 

 

 

the flash. It does no

 

 

 

 

scanning of modules.

 

 

 

 

Modules remain in

 

 

 

 

their failsafe state.

 

 

 

 

 

 

Rack backplane

6

The Scanner is unable to

Does no scanning of

1. Remove modules and check

failure

 

successfully communicate to

modules. Modules

for bent pins on connectors.

 

 

any modules that are in its SPI

remain in their failsafe

2. Reinsert modules one at a time

 

 

backplane.

state.

 

 

 

 

and note which module the

 

 

 

 

diagnostic reoccurs, and

 

 

 

 

replace that module.

 

 

 

 

3. Cycle power to the rack.

 

 

 

 

4. Replace the power supply.

 

 

 

 

5. Replace the rack.

 

 

 

 

6. Replace the scanner module.

 

 

 

 

 

Revision 5

HC900 Hybrid Controller Installation and User Guide

137

9/03

 

 

Page 146 Page 148
Page 147
Image 147
Honeywell HC900 manual Diagnostics and Troubleshooting User Interface
Page 146 Page 148

HC900 specifications

The Honeywell HC900 is a robust control solution designed to meet the demands of process industries. This flexible and powerful platform provides a comprehensive set of features tailored for process control and monitoring applications. The HC900 is particularly suited for batch control, continuous processes, and discrete applications, making it a versatile choice for a variety of industries, including oil and gas, chemicals, and electricity generation.

One of the main features of the HC900 is its modular design. This allows users to customize their control systems by selecting from a range of I/O modules, communication options, and control strategies. The system supports both analog and digital inputs and outputs, enabling seamless integration with existing infrastructures. Additionally, the modular approach enhances scalability, allowing users to expand their systems as their needs evolve.

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In summary, the Honeywell HC900 stands out as a powerful and flexible control solution, equipped with modular design, advanced control technologies, and user-friendly interfaces that cater to the diverse needs of process industries. With its comprehensive data management capabilities and robust communications options, the HC900 is an excellent choice for organizations striving for efficiency and reliability.
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