Programming
EPM2000/EPM2000e Reference Guide
45
TIMESTAMP
Set or query the Timestamp function, which places additional bytes in the data stream indicating the
approximate time of each pulse's trigger. Timestamp only functions when data output format is
Binary. After the two Data Bytes, when Timestamp is set ON, a 21-bit time index is transmitted,
divided among three bytes as described below.
The 21-bit counter increments every 1.536 milliseconds, offering a timing period of just under 54
minutes (2
21
*.001536 seconds) before rolling over to 0. The timestamp counter will also reset to 0
upon receipt of the
out time on command.
Timestamp is cross-channel. If it's activated, then both channels are transmitting timestamp bytes --
if it's not, then neither channel transmits timestamp bytes.
Command Form
OUTput TIMEstamp <?|ON|OFF>
Examples
Input Instrument Reply
out time off none
out time ? OUTPUT: TIMESTAMP OFF
TRIGGER HOLDOFF
Set or query the Trigger Holdoff level for each channel.
Command Form
CHan <A|B|ALL> TRIGger HOLDoff <?|0..49>
Examples
Input Instrument Reply
ch a trig hold 5 none
ch b trig hold 15 none
ch all trig hold ? CHAN A: TRIG: HOLDOFF 5
CHAN B: TRIG: HOLDOFF 15
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