User's Manual

Table Of Contents
General Software Information
6-9
<len> <msgSeqNum> <cmd> <cmdSeqNum> <resp> [<data>] <checksum>
where
<len> = length, a word that specifies the number of bytes in the entire message.
<msgSeqNum>
= message sequence number
, a byte that specifies the message
sequence number of the message. See the software communication sequence number
controls section for details.
<cmd> = command, word that specifies the syste
m command. See the command sec-
tions for details.
<cmdSeqNum> = command sequence number
, a byte that specifies the command
sequence number of the message. See the software communication sequence number
controls section for details.
<resp>
= response, a word that specifies the system response. See the response sec-
tions for details.
[<data>] = optional data payload that varies in length from 0 to 63 by
tes and is asso-
ciated with each specific response. See the response sections for details.
<checksum> = checksum, a byte
that specifies the chec
ksum of the message.
Asynchronous Response Message
The MPI 6000 after receiving command request messages from the host optionally
sends asynchronous response messages to the host.
The host and the MPI 6000 uses the following UDP/IP fast Ethernet communica
tions
asynchronous response message shown here:
<len> <msgSeqNum> <cmd> <cmdSeqNum> <resp> [<data>] <checksum>
where
<len> = length, a word that specifies the number of bytes in the entire message.
<msgSeqNum>
= message sequence number
, a byte that specifies the message
sequence number of the message. See the software communication sequence number
controls section for details.
<cmd> = command, word tha
t specifies the syste
m command. See the command sec-
tions for details.
<cmdSeqNum> = command sequence number
, a byte that specifies the command
sequence number of the message. See the software communication sequence number
controls section for details.
<resp> = response, a word that specifies the system response. See the response sec-
tions for details.
[<data>] - optional data payloa
d that varies in length from 0 to 63 bytes and is associ-
ated with each sp
ecific response. See the response sections for details.
<checksum> = checksum, a byte
that specifies the chec
ksum of the message.
PRELIMINARY