Owner's manual

4-22 Chapter 4: OE2CIH and HART
User’s Manual Pub. 0300272-01 Rev. A.0
Table 4-15 Ladder Get Device Information (Service Code = 0×4D)
Unconnected Message
Field
Value
Definition
Message Type
CIP Generic
Service Code
0×4D
Get Device
Information
Class Name
0×035D
HART Object
Instance Name
1 no n
Selects channel n-1
Object Attribute
None, leave this field blank
Request Size
0
No Request Data
Reply Size
2-120 bytes
(2) Size when Device information not
available
(120) Size when valid Device Information
returned
Number of Data
bytes returned
Request Data
HART Get Device Information - Request packet structure
Request Size = 0
Offset
Field
Value
Definition
No Request Data
Request Failed Response
HART Get Device Information - Reply packet structure
Reply Size = 2
Offset
Field
Value
Definition
0
Status
34 = DR_RUNNING
35 = DR_DEAD
Command status
1
Pad
0
Pad byte
Request Succeeded Reply
HART Get Device Information - Reply packet structure
Reply Size = 120 bytes
Offset
Field
Value
Definition
0
Status
00 = SUCCESS
Command status
1
HARTManufID_EdtMSB
(1 byte)
CMD#0, Byte 1
2
HARTDeviceType_EdtLSB
(1 byte)
CMD#0, Byte 2
3
HARTPreamble
(1 byte)
CMD#0, Byte 3
4
HARTUnivCmdCode
(1 byte)
CMD#0, Byte 4
5
HARTTransSpecRev
(1 byte)
CMD#0, Byte 5
6
HARTSoftwareRevision
(1 byte)
CMD#0, Byte 6
7
HARTHardwareRevision
(1 byte)
CMD#0, Byte 7