Rockwell-automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Manuel d'utilisateur Page 98

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Publication 1794-UM065B-EN-E - September 2010
86 Configure Module Messaging
Get Device Info Block 4 Message
9 SVUnits (1 byte) CMD#3, Byte 9; Set to 0 if
device does not return a
value for SV.
10 TVUnits (1 byte) CMD#3, Byte 14; Set to 0 if
device does not return a
value for TV.
11 FVUnits (1 byte) CMD#3, Byte 19; Set to 0 if
device does not return a
value for FV.
12 PVRangeUnits (1 byte) CMD#15, Byte 2
13 Pad_8 alignment (1 byte)
14 HARTPreamble (1 byte) CMD#0, Byte 3
15 HARTFlages (1 byte) CMD#0, Byte 8
(1)
Data in offsets 4…15 will be set to 0 if Status in offset 0 indicates a problem (Status = 0x86 or 0x87).
Get Device Information Block 4 Message – Request Packet Structure
Field Value Definition
Message Type "CIP Generic"
Service Type Get Attribute Single Read From Module
Service Code 0x0E
Class Name 0x7D FLEX Module Object
Instance 1…8 (Module next to Adapter = 1) Module Location
Object Attribute 0x8A = Channel 0 (Add 4 for next channel)
0x8E = Channel 1
0x92 = Channel 2
0x96 = Channel 3
0x9A = Channel 4
0x9E = Channel 5
0xA2 = Channel 6
0xA6 = Channel 7
Selects Channel that the
data is from
Reply Size 38 bytes
Request Size 0
Get Device Information Block 3 Message – Reply Packet Structure
Offset
(1)
Field Value Definition
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