Allen-Bradley Micro800 2080-MEMBAK-RTC2 User Manual page 67

Rockwell Automation Publication 2080-UM004D-EN-E - March 2018
Transaction Block Format
Byte Offset Contents
0 Status
1 Transaction ID
2 Size
3 Reserved
4 MAC ID
5 Service
6...115 Transaction Body (110 bytes)
Explicit Message Request Format
Byte Offset Contents
0 Status
1 Transaction ID
2 Size
3 Reserved
4 MAC ID
5 Service
6...7 Class
8...9 Instance
10...115 Service Data (106 Bytes)
Explicit Message Response Format
Byte Offset Contents
0 Status
1 Transaction ID
2 Size
3 Reserved
4 MAC ID
5 Service
Byte Offset Contents
0 Status
6...115 ServiceData
Explicit Message Status Codes
Status Code
0
DeviceNet Plug-in – 2080-DNET20
Request Data
Can be read from UDFB status
Can be read from UDFB response data.
Response data shows CIP error Code.
Description
Ignore transaction block (block empty).
Chapter 5
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