D-10 DDC Emulation Commands Model 6485 Picoammeter Instruction Manual
Figure D-1
U0 Status word
TERMINATOR
: CR LF
= LF CR
,LF
.CR
None
PREFIX
ZERO CHECK
0 = Off
1 = On
RANGE
0 = Auto On
1 = 2nA
2 = 20nA
3 = 200nA
4= 2mA
5= 20mA
6 = 200mA
7 = 2mA
8 = 20mA
9 = Auto Off
LOG
0 = Off
1 = On
RELATIVE
0 = Off
1 = On
EOI
Value Send EOI Bus hold-off on X
0 Yes Enable
1 No Enable
2 Yes Disable
3 No Disable
SRQ Error Mask*
00 = SRQ Disabled
01 = IDDCO
02 = IDDC
03 = IDCCO or IDCC
04 = Not in Remote
05 = Not in Remote or IDDCO
06 = Not in Remote or IDDC
07 = Not in Remote, IDDCO,
or IDDC
TRIGGER
0 = Continuous on Talk
1 = One-shot on Talk
2 = Continuous on Get
3 = One-shot on Get
4 = Continuous on X
5 = One-shot on X
6 = Continuous on External Trigger
7 = One-shot on External Trigger
*Also see Byte 5 in Status Byte
485CDRZKTMdMeY
STATUS WORD
SRQ Data Mask* (see Legend)
00 = SRQ Disabled 01 = Reading Overflow
02 = DSF 03 = DSF or Overflow
08 = Done 09 = Done or Overflow
10 = DSF or Done 11 = DSF or Done or Overflow
16 = Busy 17 = Busy or Overflow
18 = DSF or Busy 19 = DSF or Busy or Overflow
24 = Busy or Done 25 = Busy, Done, or Overflow
26 = DSF or Busy or Done 27 = DSF or Busy or Done or Overflow
SRQ Data Mask Legend
Overflow = Reading Overflow
DSF = Data Store Full
Done = Reading Done
Busy = Busy
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