The C-ECHO-RSP Message contains fields as defined in Table 9.3-13 and in Annex C. Each field shall conform to DICOM encoding and Value Representation as defined in PS3.5. Fields are required as specified in the C-ECHO service definition unless otherwise noted in Table 9.3-13. Fields not specified in the C-ECHO service definition but present in Table 9.3-13 are required by the DIMSE-C protocol.
Table 9.3-13. C-ECHO-RSP Message Fields
|
Message Field
|
Tag
|
VR
|
VM
|
Description of Field
|
|
Command Group Length
|
(0000,0000)
|
UL
|
1
|
The even number of bytes from the end of the value field to the beginning of the next group.
|
|
Affected SOP Class UID
|
(0000,0002)
|
UI
|
1
|
SOP Class UID associated with the operation.
|
|
Command Field
|
(0000,0100)
|
US
|
1
|
This field distinguishes the DIMSE-C operation conveyed by this Message. The value of this field shall be set to 8030H for the C-ECHO-RSP Message.
|
|
Message ID Being Responded To
|
(0000,0120)
|
US
|
1
|
Shall be set to the value of the Message ID (0000,0110) field used in associated C-ECHO-RQ Message.
|
|
Command Data Set Type
|
(0000,0800)
|
US
|
1
|
This field indicates that no Data Set is present in the Message and shall be set to a value of 0101H.
|
|
Status
|
(0000,0900)
|
US
|
1
|
Indicates the status of the response. It shall have a value of Success.
|