EC155 CO
2
and H
2
O Closed-Path Gas Analyzer
53
10.3 EC100Configure() Instruction
This instruction is another way, besides
ECMon
and
Device Configuration
Utility
, to retrieve and modify settings.
ECmon
and
Device Configuration
Utility
are user-interactive, while the
EC100Configure()
instruction allows
automated control under
CRBasic
datalogger programming.
EC100Configure()
is a processing instruction. Whether running in pipeline
mode or sequential mode the datalogger will execute the instruction from
processing. This functionality allows the instruction to be placed in conditional
statements. Running from processing also introduces ramifications when
attempting to execute the
EC100Configure()
instruction while other SDM
instructions are executing in pipeline mode. This instruction locks the SDM
port during the duration of its execution. If the pipelined SDM task sequencer
needs to run while the SDM is locked, it will be held off until the instruction
completes. This locking will likely result in skipped scans when reconfiguring
an EC155.
For the EC155 to save settings, it must go through a lengthy write-read-verify
process. To avoid saving the settings after each set command, the result code
can be used to determine if any settings were modified from their original
value. When a change is detected the save settings command (command code
99
) can then be sent to the EC155. The
DestSource
parameter variable should
be set to 2718 to save the settings. The reception of this command is
acknowledged but since it takes up to a second to complete, a successful return
code does not mean that all of the data was successfully written to the
appropriate non-volatile memory.
The instruction syntax is:
EC100Configure
(
Result,SDMAddress,ConfigCmd,DestSource
)
Result
is a variable that contains a value indicating the success or failure of the
command. A result code of 0 means that the command was successfully
executed. If reading a setting, 0 in the result code means that the value in the
DestSource
variable is the value the desired setting has in the EC155. When
writing a setting, if the result code is 0, the value and setting were compatible,
but the value was not changed because it contained the same value that was
sent. A return code of 1 from the set operation means that the value was valid,
different, set and acknowledged. This allows
CRBasic
code to control whether
or not to save the settings.
NAN
(not a number) indicates that the setting was
not changed or acknowledged or a signature failure occurred.
SDMAddress
defines the address of the EC155 to configure. Valid SDM
addresses are 0 through 14. Address 15 is reserved for the
SDMTrigger()
instruction.
ConfigCmd
is a variable that indicates whether to get or set a setting. The
options are listed in TABLE
DestSource
is a variable that will contain the value to read when getting a
setting, or that will contain the value to send when writing a setting to the
EC155.
Содержание EC155
Страница 78: ...E 1 Appendix E Safety Data Sheets SDS E 1 Molecular Sieve Type 13X ...
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Страница 82: ...Appendix E Safety Data Sheets SDS E 5 E 2 Magnesium Perchlorate ...
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Страница 84: ...Appendix E Safety Data Sheets SDS E 7 ...
Страница 85: ...Appendix E Safety Data Sheets SDS E 8 ...
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Страница 88: ...Appendix E Safety Data Sheets SDS E 11 ...
Страница 89: ...Appendix E Safety Data Sheets SDS E 12 E 3 Decarbite ...
Страница 90: ...Appendix E Safety Data Sheets SDS E 13 ...
Страница 91: ...Appendix E Safety Data Sheets SDS E 14 ...
Страница 92: ...Appendix E Safety Data Sheets SDS E 15 ...
Страница 93: ...F 1 Appendix F EC155 Packing Information ...
