User Guide Instruction Manual

DeviceMaster UP EtherNet/IP User Guide: 2000424 Rev. L Chapter 5. Programming the PLC - 111
Request Data from DeviceMaster UP
5.3.7.3. Request Data from DeviceMaster UP
Use the Configuration tab on the Message Configuration dialog to request data from a specified serial port on
the DeviceMaster UP. Only the Polling receive method uses this feature.
Provide the following information.
The following image displays the user defined data type for received data.
Field Selection
Message Type CIP Generic
Service Type Get Attribute Single
Service Code 0E Hex (Get Attribute Single)
Class 71 Hex (Serial Port Data Transfer object)
Instance 1 (Port 1)
Attribute 2 (Receive message data attribute)
Destination
Com1_RxDataStr (Receive data structure)
The Receive data structure includes:
• Produced data sequence number (one INT). A change indicates new data.
• Data length in bytes (one INT).
• Data array (zero to 440-bytes)
Source Length 128 (Length of the configuration data structure.)