u-blox Malmo AB 071902 Benutzerhandbuch
Utfärdare / Issued by
Datum / Date
Beteckning / Ref.
Sida / Page
Andreas Hörjel, Mats Andersson
2005-06-08
cBProject-0403-01 (23)
3 (61)
Ärende / Subjekt
Godkänd av / Approved by
BT IO Functional Description
Template update: 00-12-01
1 Scope
1.1 Identification
This document is the functional description for the Bluetooth IO product, referenced as document
cBProject-0430-01.
cBProject-0430-01.
The product is identified as cB-0719-02.
1.2 System Overview
The BT IO connects an IO using the wireless Bluetooth technology to a field bus. The field bus
connection makes it possible for superior systems, i.e. a PLC, to communicate with the IO.
connection makes it possible for superior systems, i.e. a PLC, to communicate with the IO.
The BT IO product defines two roles in the system, the Bus Unit and the IO Unit:
•
Scenario 1. The Bus Unit, which connects the wireless BT IO to the field bus and further on
to the information acquiring system (PLC).
to the information acquiring system (PLC).
•
Scenario 2. The IO Unit, which actuates the outputs and reads the inputs. Two IO units may
also be used to form an IO-to-IO mirroring application, later called the Gateway option.
also be used to form an IO-to-IO mirroring application, later called the Gateway option.
Bus Unit
IO Unit
PLC
Scenario 1
IO Unit
IO Unit
BT IO
Scenario 2
BT IO
Figure 1 - Displays the system overview for the BT IO and its user scenarios