Diagnostics And Troubleshooting - Leuze electronic AMS 348i Manual

Optical laser measurement system

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Diagnostics and troubleshooting

For the PROFINET, there are two different options for diagnosis.

Event-related diagnostics

PROFINET transmits events within an automation process as alarms that must be

acknowledged by the application process.

The following events are possible:

• Process alarms: Events that originate from the process and are reported to the control.

• Diagnostic alarms: Events that indicate the malfunctioning of an IO device.

• Maintenance alarms: Transmission of information to avoid the failure of a device

through preventative maintenance work.

• Manufacturer-specific diagnostics

To identify the alarms uniquely, they are always reported via a slot/subslot. The user can

prioritize diagnostic and process alarms differently.

State-related diagnostics

In addition, all alarms are entered into the diagnostics buffer. If required, this buffer can be

read by a primary instance via acyclic read services.

A further option to report malfunctioning or status changes in a field device to a plant control

is to enter low-priority diagnostic or status messages into the diagnostic buffer only instead

of actively reporting them to the primary control.

This option can also be used for preventative maintenance or for low-priority warnings, for

example.

The AMS

348i

well as the state-related diagnostics for preventative maintenance and the signaling of low-

prioritized events or warnings.

The following alarms and diagnostics messages are supported:

Diagnostics

Parameter error

Configuration error

n = module number

Only diagnostics or process alarms actually trigger the transmission of an alarm. All other

types (preventative maintenance and status messages) only lead to an entry into the

diagnostics buffer and are thus part of the state-based diagnostics.

Table 10.1:

Leuze electronic

uses both the event-related diagnostics for high-prioritized events/errors as

Description

AMS 348

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