Watlow Series D8 - Manual (Page 79)

Series D8 User’s Guide Chapter 3: Communicating by DeviceNet
Doc. 0600-3120-2000 Watlow Anafaze 61
Addressing
All data is referenced using a four-part definition: Node
(MAC ID) + Class + Instance + Attribute.
Table 3.5 Address Components
Data Types
The descriptions of attributes in the following sections include
the data type for each. Table 3.6 lists and describes these data
types.
Table 3.6 Elementary Data Types
DeviceNet Objects
The following sections describe the standard DeviceNet ob-
jects and the D8-specific application objects. Tables in each
section identify the class, available services, and the object's
class and instance attributes.
Identity Object
The Identity object provides identification information for the
device. This includes the device manufacturer, product name,
product type, serial number and revision.
Address Component Range
Node Address (MAC ID) [0 to 63]
Class ID [1 to 255]
Instance ID [0 to 255]
Attribute ID [1 to 255]
Type Description
BOOL Logical Boolean (TRUE or FALSE)
BYTE Bit string (8 bits)
EPATH DeviceNet path segments
INT Signed integer (16 bits)
SHORT_STRING
Character string (1 byte per character, 1 byte length
indicator)
UDINT Unsigned double integer (32 bits)
UINT Unsigned integer (16 bits)
USINT Unsigned short integer (8 bits)
WORD Bit string (16 bits)