Omron V720 Series, Operation Manual

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5-1
SECTION 5
Communications Functions
This section provides the communications functions and provides details on communications-related data and com-
mands.
5-1 Command and Response Frame Structure................................................................................ 5-2
5-1-1 Command Frame Structure........................................................................................... 5-2
5-1-2 Response Frame Structure ............................................................................................ 5-2
5-1-3 BCC Calculation Method ............................................................................................. 5-3
5-2 Command List .......................................................................................................................... 5-4
5-3 Communications Commands and Responses ........................................................................... 5-5
5-3-1 Single Access Commands and Responses.................................................................... 5-5
5-3-2 FIFO Access Commands and Responses ..................................................................... 5-7
5-3-3 Multiple Access Commands and Responses ................................................................ 5-9
5-3-4 Selective Access Commands and Responses................................................................ 5-11
5-3-5 Polling Commands and Responses............................................................................... 5-14
5-3-6 System Commands and Responses............................................................................... 5-18
5-3-7 General Commands and Responses.............................................................................. 5-25
5-4 Command Connection.............................................................................................................. 5-30
5-5 Communications Methods........................................................................................................ 5-32
5-5-1 Access Settings............................................................................................................. 5-32
5-5-2 Mode Settings............................................................................................................... 5-37
5-5-3 Table of Communications Methods.............................................................................. 5-41
5-5-4 Table of Communications Methods for Commands ..................................................... 5-42
5-6 Data Type ................................................................................................................................. 5-43
5-7 Tag Number Setting.................................................................................................................. 5-44
5-8 Communications Phase ............................................................................................................ 5-45
5-9 ACK/NACK Control................................................................................................................ 5-46
5-9-1 Error Handling in ACK/NACK Control....................................................................... 5-46
5-10Response Code List .................................................................................................................. 5-47