Publication 1769-UM001B-EN-P - October 2002
Explicit Messaging Application Examples
B-7
The following correlates the CIP Generic message terminology with
DeviceNet command terminology and illustrates the values needed
specifically for the Get 1769 I/O Configuration Size message:
The following ladder logic program is an example of the MSG logic
needed to initiate an explicit message to the scanner/adapter. This
MSG instruction logic is specifically for the Get 1769 I/O Module
Configuration Size message. Assume the 1756-DNB scanner is in slot 1
and the Logix5550 controller is in slot 0.
Values (Hexadecimal)
DeviceNet Terminology
CIP Generic Terminology
e
Service
1
Service Code
30c
Class
2
Object Type
10 (decimal)
Instance
3
Object ID
17
Attribute
4
Object Attribute
1
Service specifies the type of request being delivered. “e” hexadecimal is a “Single Parameter Read”.
2
Class specifies the desired DeviceNet class. “30c” hexadecimal is the class code for the object representing
1769 I/O.
3
Instance represents the slot number of the I/O module from which we want the configuration size.
“10” decimal in this example is the analog output module in slot 10.
4
Attribute identifies the specific characteristics of the object towards which the transaction is directed.
“17” hexadecimal means Module Configuration Size.
Allen-Bradley
Содержание Compact I/O 1769-ADN DeviceNet
Страница 1: ...Compact I O 1769 ADN DeviceNet Adapter 1769 ADN User Manual Allen Bradley...
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Страница 10: ...Publication 1769 UM001B EN P October 2002 vi Notes...
Страница 24: ...Publication 1769 UM001B EN P October 2002 1 10 Installing Your DeviceNet Adapter Module Notes...
Страница 50: ...Publication 1769 UM001B EN P October 2002 2 26 How Communication Takes Place and I O Image Table Mapping Notes...
Страница 76: ...Publication 1769 UM001B EN P October 2002 3 26 Configuring Your Compact I O Series A DeviceNet Adapter Notes...
Страница 110: ...Publication 1769 UM001B EN P October 2002 4 34 Configuring Your Compact I O Series B DeviceNet Adapter Notes...
Страница 152: ...Publication 1769 UM001B EN P October 2002 6 40 Application Examples Notes...
Страница 158: ...Publication 1769 UM001B EN P October 2002 A 6 Specifications Notes...
Страница 190: ...Publication 1769 UM001B EN P October 2002 B 32 Explicit Messaging Application Examples Notes...
Страница 196: ...Publication 1769 UM001B EN P October 2002 D 2 Differences Between Series A and B DeviceNet Adapters Notes...
Страница 202: ...Publication 1769 UM001B EN P October 2002 4 W Wiring DeviceNet 1 7 field connections 1 7 Word input status 2 2...
Страница 203: ...Publication 1769 UM001B EN P October 2002 5 Allen Bradley...