Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules - Manual (Page 99)

Publication 1794-UM065B-EN-E - September 2010
Configure Module Messaging 87
Reset the Device Info Changed Status Bit Message
This will reset the Device Info Changed Status Bit (Bit 5 in the Loop Status
Byte) located in the Secondary Input Data Table (Cyclic EDT Input Data). If
this message is not sent then the bit will remain set once the module has set
this bit, after it has detected that the data has changed.
Here is an example of usage of this message.
1. Detect that the "Device Info Changed Status Bit" is set.
2. Send Reset Message.
3. Send "Get Device Info Block X" messages to refresh the data that is
being used in the User's Ladder Program.
Get Device Information Block 4 Message – Reply Packet Structure
Offset
(1) Field Value Definition
Offset Field Value Definition
0 Status 00 = SUCCESS
0x86 = Channel is not
HART Enabled
0x87 = No Device Found Command status
1 Echo of Channel 0…7 Channel
2 pad 0
3 pad 0
4…7 Loop Current Float(4 bytes)
8…11 Count 0…25 (DINT,4 bytes) Number of Extended Status
bytes that device returned
12…36 Ext Status Bytes[25] 0…255 Extended Status bytes
returned by CMD48
Unused bytes are set to 0
37 pad 0
(1)
Data in offsets 4…36 will be set to 0 if Status in offset 0 indicates a problem (Status = 0x86 or 0x87).
Reset Device Information – Packet Structure
Field Value Definition
Message Type "CIP Generic"
Service Type Set Attribute Single Write to Module
Service Code 0x10
Class Name 0x7D FLEX Module Object
Instance 1…8 (Module next to Adapter = 1) Module Location