Operator`s manual

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SELECTED OPERATING DETAILS
1. Storing Data - Data is stored in Final
Storage only by Output Processing
Instructions and only when the Output Flag
is set. (Sections OV2 and OV3.3)
2. Storing Date and Time Date and time are
stored in Final Storage ONLY if the Real
Time Instruction 77 is used. (Section 11)
3. Data Transfer - On-line data transfer from
Final Storage to peripherals (tape, printer,
Storage Module, etc.) occurs only if enabled
with Instruction 96 in the datalogger
program or in the *4 Mode. (Section 4.1)
4. Final Storage Resolution - All Input Storage
values are displayed (*6 mode) as high
resolution with a maximum value of 99999.
However, the default resolution for data
stored in Final Storage is low resolution,
maximum value of 6999. Results
exceeding 6999 are stored as 6999 unless
Instruction 78 is used to store the values in
Final Storage as high resolution values.
(Sections 2.2.1 and 11)
5. Floating Point Format - The computations
performed in the 21X use floating point
arithmetic. CSI's 4 byte floating point
numbers contain a 23 bit binary mantissa
and a 6 bit binary exponent. The largest
and smallest numbers that can be stored
and processed are 9 x 10
18
and 1 x 10
-19
,
respectively. (Section 2.2.2)
6. Erasing Final Storage Data in Final Storage
can be erased without altering the program
by repartitioning memory in the *A Mode.
(Section 1.5.2)
7. ALL memory can be erased and the 21X
completely reset by entering 978 for the
number of bytes left in Program Memory.
(Section 1.5.2)
8. The set of instructions available in the 21X
is determined by the PROM (Programmable
Read Only Memory) that it is equipped with.
PROMs are available which have different
combinations of instructions. Appendix B
describes the options available and gives
the signatures of the current PROMS.
9. Significant changes in the current PROM
release (OSX-0.1, OSX-1.1, and OSX-2.1)
include:
INSTRUCTIONS
Case Statement (83 & 93, Section 12)
Arc Tangent (66 Section 10)
Wind Vector (69 replaces 76, Section 11)
Serial Output has an option to send a file mark
to a Storage Module (96, Section 12)
Low Pass Filter: on the first execution after
compiling, the input value is used for the filtered
result
Commands to set, toggle and pulse ports are
now available for Program Control Instructions
(Section 12)
Revision 3 of the above PROMS includes the
capability to sense status(0 V low, 5 V high) on
the high side of a differential channel
(Instruction 91, Section 12).
FEATURES
Ports can now be manually toggled from the
keyboard or TERM (PC208 software)
The *B Mode now displays PROM version and
revision, execution overruns, and accumulated
error 8s in addition to signatures.
The capability of transferring programs via
cassette tape is no longer supported in the
standard PROM options.