Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual User Manual

Page 29

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Publication 1760-UM003A-EN-P - September 2005

DeviceNet Functions 4-5

Service Code

The Identity Object Instance and also the following instances support
the services listed in the table below.

4

Read

Device
version

Two bytes are returned when reading the
device version.

Hardware
version,

The low byte defines the hardware
version, the high byte the operating
system version.

1

Operating
system
version

1

5

Read

Status

This attribute describes the global status
of the device.

2

6

Read

Serial
number

The serial number of the device can be
read with this attribute.

4

7

Read

Product name The product name 1760-DNET is stored as

hex value in ASCII format.

12

9

Read

Configuration
consistency
value

This attribute returns a counter value that
monitors the number of modifications in
non-volatile memory (E2PROM).

2

10

Read/
Write

Heartbeat
Interval

Defines an interval between heartbeat
messages in [s].

2

Table 4.5 Service Code

Service Code Value

Service Name

Description

05

hex

Reset

Calls the reset function of
the communication module.

0E

hex

Get_Attribute_Single

This service can be used to
fetch the value of a selected
attribute from the
communication module.

10

hex

Set_Attribute_Single

This service can be used to
set a selected attribute in
the device.

Table 4.4 Attribute IDs of the Identity Object Instance

Attribute
ID

Access Name

Description

Size
(byte)

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