Scanivalve MPS4232 Hardware And Software Manual page 42

Section 5: Software
FUNCTION
Frame Time (ns)
Temperatures
Pressures
Table 5.2 - Padded 64 Channel Binary Data Packet
This binary packet is used when SET SIM == 64. When enabled, the packet size and structure will match a MPS4264,
64-channel binary packet, however will use padded data for channels not being used (pressure channels 33-64, tempera-
tures 5-8). This allows the same packet structure to be used for MPS4200 32 and 64 channel modules in the same software.
This packet is a total of 348 bytes.
FUNCTION
Packet Type
Packet Size
Frame Number
Serial Number
Frame Rate
Valve Status
Units index
Units conversion
factor
PTP Scan Start
Time (sec)
PTP Scan Start
Time (ns)
External Trigger
Time
Temperatures
Pressures
Frame Time
Frame Time
External Trigger
Time
External Trigger
Time
BYTES DATA TYPE
4 U Integer
16 Float
Float or
128
Integer
BYTES DATA TYPE
4 Integer
4 Integer
4 Integer
4 Integer
4 Float
4 Integer
4 Integer
4 Float
4 Integer
4 Integer
4 U Integer
32 Float
Float or
256
Integer
4 Integer
4 Integer
4 Integer
4 Integer
Frame Time in nanoseconds.
This value will either be a time relative to 0 (when PTP is disabled),
or an absolute PTP time.
Array of 4 temperature values as read from the 4 RTDs.
Array of 32 pressure values. The float or integer is selected based on
the units (float = EU, integer = RAW).
Size in bytes of this packet (348)
The current frame number if in the scan mode.
Serial Number of the module (SET SN)
Scanning rate in Hz
0 - Px Only (32 is valveless)
Units conversion index (add table)
Conversion factor from PSI to selected units
Scan start time in seconds
Scan start time in nanoseconds
External Trigger Time in us
Array of 4 temperature values as read from the 4 RTDs. The
remaining bytes will be padded with "0" (5 - 8).
Array of 64 pressure values. The float or integer is selected based on
the units (float = EU, integer = RAW).
Channels 1 - 32 will be real data. Channels 33-64 will be padded with
Time the frame occurred (seconds)
Time the frame occurred (nanoseconds)
Time the external trigger occurred (seconds)
Time the external trigger occurred (nanoseconds)
36
DESCRIPTION
DESCRIPTION
A Hex
"0".
MPS4232