Schneider Electric LUFP9 user manual Diagnostic Object Class 16#AA, Attributes of class 16#AA

10. Appendix D: DeviceNet Objects

10.12. Diagnostic Object (Class 16#AA)

The “Diagnostic Object” has only one instance (Instance ID = 16#01) and is specific to the LUFP9 gateway. It contains a large amount of diagnostic data of all levels. As a result, some of these diagnoses should not be used, as these are reserved for maintenance operations carried out on the gateway or when developing its software. However, the attributes to which they correspond are all described below for the sake of completeness.

Attributes of class 16#AA

ID	Access	Name	Need	Type	Value	Description
16#01	Get	Revision	Optional	UINT	1	Revision index of the “Diagnostic Object” class.

Services in class 16#AA

Service code	Name of the service	Need	Description
16#0E	Get_Attribute_Single	Required	This service allows to read the value of one of the class attributes.

Attributes of instance 16#01 of class 16#AA

ID	Access	Name	Need	Type	Value
16#01	Get	DeviceNet module serial number	Optional	UDINT	(variable)

The value of the “DeviceNet module serial number” corresponds to the serial number of the gateway’s AnyBus-S DeviceNet card, that is to say the card on which the block of selector switches and the DeviceNet connector are located. e.g. 16# 20 DD 00 23.

16#02 Get Vendor ID Optional UINT 16#0001

The value of this attribute is set to 16#0001 for the LUFP9 gateway.

The value 16#0000 cannot be used and values between 16#0002 and 16#FFFF are reserved for the gateway suppliers.

16#03	Get	Fieldbus type	Optional	UINT	16#0025
	With the LUFP9 gateway, this attribute always takes the same value (16#0025), as it characterizes the
	DeviceNet network. Any other value would be incorrect (e.g. 16#0001 for a Profibus-DP network).
16#04	Get	DeviceNet module software version	Optional	UINT	16#0105

This attribute shows the software version on the gateway’s AnyBus-S DeviceNet card. The major index of this version is given by the most significant byte and its minor index is given by the least significant byte, both in BCD format. e.g. 16#0105 corresponds to version 01.05.

16#05	Get	Interrupt count	Optional	UINT	(counter)
	The value of the “interrupt count” is incremented by one every time an interrupt related to the management of the
	downstream Modbus network do occur.
16#06	Get	Watchdog counter in	Optional	UINT	16#0000

This counter is not implemented, and using this attribute is pointless.

The primary function of this counter is to provide feedback from the lifetime counter represented by attribute 16#07, which would allow the AnyBus-S DeviceNet card to ensure that the card to which it is connected is working properly by comparing the values of these two attributes.

16#07

Get Watchdog counter out Optional UINT (counter)

The value of this counter is incremented by one every millisecond (at least one writing operation every 50 ms) and operates as an internal presence counter, intended to the gateway’s applicative card, that is to say the card on which the AnyBus-S DeviceNet card is inserted.

16#08

Get Access method status Optional USINT [4] 16# 40 00 00 80

This array of 4 USINT elements determines the status of the method used to access the gateway’s memory’s general areas. This attribute is not relevant when using the gateway.

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