Rockwell Automation 160-DN2 160-DN2 DeviceNet Communication Module FRN 3.xx - Manual (Page 70)

Publication 0160-5.18 - June 2003
6-32 Using 160-DN2 with DeviceNet Scanner
Using Explicit Messaging
(Continued)
Figure 6.23
ControlLogix Example Explicit Messaging Ladder Logic Program
Table 6.E Tags for ControlLogix
Example Explicit Messaging Program
Tag Names
for Read Messages
Type
Tag Names
for Write Messages
Type
StartParameterRead BOOL StartParameterWrite BOOL
Output_Current INT ParameterWriteMessage MESSAGE
ParameterReadMessage MESSAGE Accel_Time_1 INT
0
StartParameterRead
EN
DN
ER Type - CIP Generic
Message Control
ParameterReadMessage ...
MSG
1
StartParameterWrite
EN
DN
ER Type - CIP Generic
Message Control
ParameterWriteMessage
MSG
(End)
...
This rung writes the value of parameter 30 - [Accel Time 1]. The value is taken from the WriteSource tag.
This rung reads the value of parameter 3 - [Output Current]. The value is in the ReadDestination tag.