Elo TouchSystems 2201L Specifications download pdf (Page 81)

Command Reference

• Introduction 71

• Command Descriptions 72

INTRODUCTION

Terms

The following is a glossary of basic terms as they are applied in this chapter:

command packet passed as a message from the host to the controller.

response packet passed as a message from the controller to the host.

command byte leading character in a command packet.

data bytes The remaining seven bytes in a command packet.

set A command issued by the host to the controller requesting

the controller perform a specific action.

query A command issued by the host to the controller requesting

the controller send a response packet containing the

requested data.

integer A logical combination of two bytes to form a single 16-bit

two's-complement signed number. Value range from 32768

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Elo TouchSystems 2201L Specifications Page 81