Table of Contents
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SECTION 2
CompoWay/F Communica-
tions Procedures
Read this section if you are to communicate using the CompoWay/F format.
2.1
Data Format.................................................................. 2-2
Command Frame................................................... 2-2
BCC Calculation Example ........................ 2-3
Response Frame ................................................... 2-3
Communications Data ........................................... 2-4
End Code Example................................................ 2-4
2.2
Structure of Command Text .......................................... 2-6
PDU Structure ....................................................... 2-6
Area Definitions ..................................................... 2-6
Type Code (Variable Type) ................................... 2-6
Addresses.............................................................. 2-7
Number of Elements.............................................. 2-7
List of Services ...................................................... 2-7
2.3
Detailed Description of the Services............................. 2-9
Read Variable Area ............................................... 2-9
Write Variable Area ............................................. 2-10
Read Controller Attributes ................................... 2-12
Read Controller Status ........................................ 2-13
Echoback Test..................................................... 2-14
Operation Command ........................................... 2-15
2.4
Response Code List ................................................... 2-20
2-1
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