Scanivalve MPS4264, Hardware And Software Manual

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MPS4264
Section 5: Software
Scan
DESCRIPTION Starts scanning and places the MPS4264 into SCAN mode.
The MPS4264 uses the current PTP time as the scan start time under two conditions:
1) When the PTP system is disabled via the SET PTPEN 0 command.
2) When the current time has not been received from the PTP server since the MPS4264 was
powered up. Under this condition the MPS4264 time will start at Jan 1 1970, 0:00:00.000 hours,
or epoch 0 time. This most likely will happen when there is no grandmaster on the network.
If the MPS was enabled and then disabled after receiving a time set from the PTP time server, the
MPS will keep time from the last clock setting from the PTP server.
When these two cases are not met, the MPS uses the start time set via the SET SST <time> and
SET SSD <date> setting in the PTP group.
When the current time is more recent than the scan start time, the MPS4264 will start scanning
on the next frame interval that would be scheduled from the scan start time. See “Appendix D:
1588 Synchronized Scan Start” on page 85 for a discussion on starting scan using the PTP
SYNTAX SCAN
RETURNS The Scan Data
EXAMPLE
SCAN
NOTE: Output is based on formatting.
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Multiple Unit Scan
DESCRIPTION When the master receives the MSCAN command it issues a SCAN command to the multicast
address set in the MCAST variable. Each MPS member of this multicast cluster will start scanning
provided the SSD and SST conditions are met.
SYNTAX MSCAN
RETURNS The Scan Data
EXAMPLE MSCAN
NOTE: Output is based on formatting.
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Software Frame Trigger
DESCRIPTION When in scan mode and external trigger set causes the MPS4264 to sample a frame of data.
SYNTAX TRIG or <TAB>
RETURNS A frame of data
EXAMPLE
TRIG
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