Omron KM50 Communications Manual page 20

Section 2 CompoWay/F
This section describes performing communications using the CompoWay/F protocol.
2. 1 Data Formats ................................................................................ 2-2
■ Command Frame ..................................................................................... 2-2
■ BCC Calculation Example........................................................................ 2-3
■ Response Frame...................................................................................... 2-3
■ Communications Data.............................................................................. 2-4
■ End Code Examples ................................................................................ 2-4
2. 2 Structure of Command Text.......................................................... 2-5
■ PDU (Protocol Data Unit) Structure ......................................................... 2-5
■ Variable Areas and Parameter Areas ...................................................... 2-5
■ Area Definitions........................................................................................ 2-6
■ Type Codes .............................................................................................. 2-6
■ Addresses ................................................................................................ 2-7
■ Number of Elements ................................................................................ 2-7
■ List of Services......................................................................................... 2-7
2. 3 Detailed Descriptions of Services ................................................. 2-8
■ Read Variable Area.................................................................................. 2-8
■ Read Parameter Area ............................................................................ 2-10
■ Write Parameter Area ............................................................................ 2-12
■ Read Controller Attributes...................................................................... 2-14
■ Read Controller Status........................................................................... 2-15
■ Read Time Data ..................................................................................... 2-16
■ Write Time Data ..................................................................................... 2-17
■ Echoback Test ....................................................................................... 2-18
■ Operation Command.............................................................................. 2-19
2.4 Response Codes......................................................................... 2-21
Communications
Protocol
2-1