Acknowledgement (ACK) Message Syntax
LAN/WLAN Data Export
2-18 Efficia CM Series Data Export Guide
Message Header (MSH) Segment
The MSH segment is used primarily as a message envelope.
Example:
This MSH segment shows an ACK message being sent back to the monitor on May 10,
2014 at 12:45:00 pm.
MSH|^~\&|||||20140510124500||ACK^^ACK_ALL|EXAMPLE123|P|2.4<CR>
The following table describes each field in the MSH segment .
Seq Field Description DT Len Usage Min Max Table Sample Value
1 Field
Separator
The character
that separates
the segment ID
(MSH) from the
first data field
(Encoding
Characters) in
the segment.
ST 1 R 1 1 |
2 Encoding
Characters
The four
separator
characters for
the message in
this order:
component
separator (^),
repetition
separator (~),
escape
character (\),
subcomponent
separator (&).
ST 4 R 1 1 ^~\&
7 Date/Time
of Mettbhf
The date and
time that the
monitor created
the message.
TS 26 R 1 1
7.1 Date/Time Timestamp in
the format
YYYYMMDDHH
MMSS
NM 20 R 1 1 20140510124500
9 Message
Type
The server uses
this field to
know which
data segments
to recognize.
Contains the
message type,
trigger event,
and message
structure ID.
CM_MSG 1 R 1 1 0076 ACK^^ACK_ALL
9.1 message
type
Acknowledg-
ment (ACK)
message.
ID 3 R 1 1 0076 ACK
9.3 message
structure
ID 7 R 1 1 0354 ACK_ALL