2 About host interface features
Roche Diagnostics
COBAS INTEGRA 400 plus analyzer/Cedex Bio HT Analyzer · Software version 3.6/5.1 · Host Interface Manual · Version 1.24
40 Host query mode
Host query mode
Host query mode is the most convenient way to work with
laboratory systems. It allows the user to put samples on
any instrument at any position on any sample rack. It
optimizes laboratory workflow, particularly when the
laboratory has more than one instrument.
A barcoded sample is placed in an instrument. The
instrument reads the barcode and waits for a host
request. The instrument then sends a list of any on-board
samples lacking order information.
Due to the request/response principle, the host must
transmit an MCS request (BC60) in order to receive the
instrument response containing sample information. To
ensure an optimal host query function, the host system
has to transmit this request periodically, e.g. one request
every 30 seconds.
Following an MCS request, a complete list of all pending
sample tubes lacking test orders is transmitted to the host
system (all tubes are listed within the block 62).
Every entry in this list, i.e. every reported pending sample
tube, requires its own order entry block (block 10).
The host system should ignore pending sample tube
information if it does not have associated order
information available. The tubes will be listed with every
instrument response to a host MCS request until they are
removed from the instrument.
To reactivate the host query for a sample (in order to
allow reruns), the host should always transmit an Order
Deletion block (Block 11) as soon as it has received all
results belonging to a specific order.
We recommend using the following procedure and timing
when using host query:
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