2635A
Users Manual
F-2
Offset Description
===== ===========
0 File type; 0 for setup files, 1 for data files.
1 File format; always zero for this format.
2-81 Tag string. Copied from the setup file used with a time
string appended; or just a time string if no setup file used.
82 Set up format version; always zero.
83 Global instrument configuration; 0x01 bit set for degrees
Fahrenheit, else Centigrade; 0x02 bit set for open
thermocouple checking enabled; 0x80 bit set for alarms on open
thermocouple. See TEMP_CONFIG.
84 Measurement rate; 0 for slow, 1 for fast. See RATE.
85 Trigger type; 0 for off, 1 for on, 2 for monitor alarm. See
TRIGGER.
86 Output format type; 1 for no units, 2 for units. See FORMAT.
87 Totalizer debounce; 0 for off, 1 for on. See TOTAL_DBNC.
88 Interval BCD hours. See INTERVAL.
89 Interval BCD minutes.
90 Interval BCD seconds.
91 Event Status Register (ESR) value.
92 Service Request Enable (ESE) register value.
93 Instrument Event Enable (IEE) register value.
94 Logging status; 0x1 bit set if logging enabled, 0x02 bit
set if LOG queue stops logging when full. See LOG_MODE.
95 Logging filter; 0 for all, 1 for alarms, 2 for alarm
transitions. See PRINT_TYPE.
96 Logging destination; 0x01 bit for printer, 0x02 bit set for
LOG queue, 0x04 bit set for memory card. See PRINT_TYPE.
97 Front panel lock mode; 0 for not locked, 3 for
configuration lock. See LOCK.
98-727 Channel definitions:
Offset within each channel definition
Description
——— ———------——
0 Measurement. 0 if off, 1 if vdc, 2 if vac, 3 if
ohms, 4 if frequency, 9 if thermocouple, 11 if RTD.
1 Measurement range. Lower bit values are measurement
range, with 0 being the lowest range for the
measurement type (e.g., 0 for 300 mVDC).
0x10 bit set if autoranging. See RANGE?
2 Thermocouple/RTD type. 0 for Pt, 1 for J, 2 for K,
3 for E, 4 for T, 5 for N, 6 for R, 7 for S, 8 for
B, 9 for C.
3 Alarm flags. 0x01 bit set for limit 1 (SP1) low, 0x02
bit set for SP1 high, 0x04 bit set for limit 2 (SP2)
low, 0x08 bit set for SP2 high. See ALARM_LIMIT.
4-7 Alarm limit 1 (4-byte single-precision floating point).
8-11 Alarm limit 2 (4-byte single-precision floating point).
12 Alarm 1 digital I/O association. See ALARM_ASSOC.
13 Alarm 1 display range. See SCALE_MB (DISPLAY CODE - 1).
14 Alarm 2 digital I/O association. See ALARM_ASSOC.
15 Alarm 2 display range. See SCALE_MB (DISPLAY CODE - 1).
16-19 Mx+B M value (floating point).
20-23 Mx+B B value (floating point).
24 Mx+B M display range. See SCALE_MB (DISPLAY CODE - 1).
25 MX+B B display range. See SCALE_MB (DISPLAY CODE - 1).
26-29 RTD R0 value (floating point). See RTD_R0.
728-729 CRC-16 of the data from offset 82 to 727.