Welch-allyn SureTemp PlusModule - User Manual Manuel d'utilisateur télécharger pdf (Page 30)

Introduction SureTemp Plus Module OEM Implementation

30 Conﬁdential Welch Allyn OEM Technologies

8 - Communications Protocol

Introduction

The SureTemp Plus module is a command-driven slave device communicating with a host

system over an asynchronous serial communication line. The host initiates communications by

sending a command block; the SureTemp Plus module always responds with a response block.

The SureTemp Plus module and the host system are referred to below as “module” and “host”

respectively.

The protocol description includes three main sections:

Communications Interface

9600 baud rate

8 data bits, no parity, 1 stop bit

full duplex

Asynchronous using standard non-return to zero (NRZ) format

Non-isolated module power and communications are provided at J1

System EEPROM

The system EEPROM contains system conﬁguration and operational constants that are encoded

by Welch Allyn. While the majority of parameters pertain to Welch Allyn manufacturing and

operational defaults, the OEM can customize some parameters, such as the following, to

accommodate requirements:

Packet Structure describes the protocol

Commands and Responses describes the commands

Command and Response Examples provides examples

Thermometer Algorithm The algorithm—oral or axillary—used when the oral probe is

installed. (Default: Oral)

Temperature Method Predictive or monitor mode. (Default: Predictive)

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Welch-allyn SureTemp PlusModule - User Manual Manuel d'utilisateur Page 30