Rockwell-automation 22-COMM-C ControlNet Adapter User Manual download pdf (Page 65)

Using Explicit Messaging 6-5

Table 6.A Tags for the ControlLogix Example Explicit Messaging Program

Ladder Logic Program

Figure 6.4 Example ControlLogix Ladder Logic Explicit Messaging Program

For a ControlLogix controller I/O ladder example program, see

Figure 5.3

Tag Names

for Read Message Type

Tag Names

for Write Message Type

Perform_Parameter_Read BOOL Perform_Parameter_Write BOOL

Parameter_Read_Message MESSAGE Parameter_Write_Message MESSAGE

Output_Current INT Accel_Time_1 INT

Explicit Messaging Examples

Reading a single parameter (Get Attribute Single command)

This message example reads from Parameter d003 - [Output Current] and stores its value in the "Output_Current" controller

tag.

Perform_Parameter_Read

Type - CIP Generic

Message Control Parameter_Read_Message

...

MSG

Explicit Messaging Examples

Reading a single parameter (Get Attribute Single command)

This message example reads from Parameter d003 - [Output Current] and stores its value in the "Output_Current" controller

tag.

Writing a single parameter (Set Attribute Single command)

This message example writes to Parameter P039 - [Accel Time 1] and stores its value in the "Accel_Time_1" controller tag.

Perform_Parameter_Write

Type - CIP Generic

Message Control Parameter_Write_Message

...

MSG

Writing a single parameter (Set Attribute Single command)

This message example writes to Parameter P039 - [Accel Time 1] and stores its value in the "Accel_Time_1" controller tag.

(End)

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Rockwell-automation 22-COMM-C ControlNet Adapter User Manual Page 65