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Chapter 5 Frame Editor
5-18
2) Received frame setting (RECEIVE)
It describes how to register ‘RECEIVE’ frame as of No.2 received frame in frame list in [Figure5.2]. No.2 frame is
supposed to be received frame in the structure as below. Received data of 6 byte means variable data of 6 byte.
Trans. sequence Header <------------------------------------------------------------------------------------------------ Tail
Frame body
Frame type Header
Command (CONST) Data (ARRAY)
Tail BCC
Trans. frame ACK 0 0 R B ETX
ASCII code H06 H30 H30 H52 H42
Variable data (6 byte)
H03
User can define the frame in the sequence below in the [Figure 5.2] if communication frame Cnet I/F module is to
receive is as above and if the figure of 6 byte behind ‘00RB’ is the contact data (variable area) which is
transmitted from the other station.
A) Double-click on frame No.2 to edit in [Figure 5.2] with mouse.
B) If frame setting screen as in [Figure 5.7] is displayed, input frame name to be received and TX/RX along with
[ACK] in header, while the name and header setting are same as in transmission. In this case, input frame
name as of ‘RECEIVE’.
Remark
[Note1] When inputting name, do not use ‘_UDATA_SEND’ or ‘_UDATA_RCV’, which performs special
function. Refer to 7.1 User defined communication for more information.
[Figure5.7] Setting of received frame type
C) If set to Receive, frame name of immediate response can be set by ‘REPLY’ input. Immediate response
function is used in protocol which informs the other station that the frame if received is normally received.
Once if the immediate response is selected and transmitted frame just like the response frame name is
registered, the transmitted frame which is registered as immediate response frame is transmitted automatically
even though SEND function block isn’t used in PLC. [Figure 5.8] describes the immediate response function.