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OsmoTECH PRO Multi-Sample Micro-Osmometer Service Guide
Appendix D: OsmoTECH PRO LIS
Specification
1
Clinical and Laboratory Standards Institute
. This standard was used for software development purposes only. OsmoTECH PRO osmometers are not for patient diagnostic use.
D.1 Purpose
This appendix describes the bidirectional TCP/IP
communication link between an OsmoTECH PRO
osmometer and a laboratory information system (LIS) or
host computer.
This document is intended for the information systems
professional responsible for developing a middleware
driver or application residing on the host computer.
D.2 Overview
The instrument can be connected to an LIS or general-
purpose computer to exchange information. The
communication protocols supported by the instrument
software are CSLI
1
bidirectional and unidirectional
protocols LIS2-A2 (record formats) and LIS01-A2
(low-level protocol).
The communication link allows the host computer to
transmit sample work orders to the instrument and
accept test results transmitted from the instrument The
host work orders provide sample information to the
instrument software, but do not select the parameters
to be measured. The instrument has only one possible
measurement cycle.
The type of protocol used is selected from the LIS/LAN
screen accessed from the SETTINGS menu in the
software user interface, as explained in Configuring
settings.
The instrument software can be configured to
automatically transfer available results to the host, or to
manually transfer results to permit the operator time to
review the data and release the samples. In bidirectional
mode, the Instrument system can request sample work
order information from the LIS when needed.
The LIS can also initiate sending sample work order
information to the Instrument in advance of sample
runs. The information is parsed and stored in the system
for later use. An automatic request for sample
information is generated when a system measurement
cycle starts and no existing sample ID work order or
sample record exists in the system.
D.3 Basic operation
Bidirectional mode
The instrument can be configured to expect download
of sample work orders from the LIS. In this mode, the
Instrument receives work orders at any time and stores
them for matching with a sample presented for test. If
no order is found, the Instrument queries the LIS for an
order matching the sample presented. The instrument
still sends a result record even if no matching work
order is found.
The instrument also responds to queries from the LIS in
this mode. It sends back work orders and result records
matching the appropriate fields in the query record.
Unidirectional mode
The instrument can be configured to send a result
record without matching it to a sample work order. A
default work order is made up just to satisfy the LIS2-A2
protocol.
Automatic Mode
The instrument can be configured to send a result
record as soon as a test is completed without operator
intervention. This mode works with either bidirectional
mode or unidirectional mode as described above.
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