LG GLOFA-GM Series User Manual page 74

Chapter 5 Frame Editor
B) Frame name : Input frame name. Max. 16 characters of English letters and figures can be input as a frame
name, and registered name shall be the same as used for PLC programming in GMWIN.
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. If identical frame name is used as
repeated, normal communication is not available.
C) TX/RX : Input Send for transmission and Receive for receiving.
D) Header : As of an area indicating the start of data frame, such control characters as ENQ (Enquiry,ASCII code
of H05), STX (Start of Text, ASCII code of H02) and ACK (Acknowledge, ASCII code of H06) can be applied,
and in addition, signs of (:, ;, {, . . . } and figures can be selected at user's option. Max. 8 control characters are
allowed for use as continued. Header shall be surely set bound up with '[' and ']' like '[ENQ]'. The following
example is for header setting.
E) Frame body setting : Frame body is used for area setting to which actual data including commands are to be
transmitted. For sorting out these, setting according to max. 8 segments is available in Frame Editor. To input
per segment is to sort constantly transmitted data area (CONST) from variable data area (ARRAY).
Since CONST area and ARRAY area may be used as mixed, setting shall be performed as agreed with those
respectively in several segments. Segments shall be applied from No. 1 as in transmission sequence of
frames. Do not insert a segment unused in the middle.
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[Note1]