LG GLOFA-GM Series, Руководство пользователя, Страница: 151 / 358

Chapter 7 Communication function
7-32
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Flag(_RCV[n] : n means frame list number)
-
indicates that user defined frame is received per setting number.
-
as of boolean type with size of 16 in array form.
-
If received frame is agreed with No.3 frame list, _RCV[3] is blinking.(0
→
1
→
0)
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After frame is received, GM7 basic unit checks if any is agreed with received frame in its
frame list . If the frame is in existence, applicable address of _RCV[n] flag is blinked and
if received data is in existence, it is saved in the applicable area.
2) Function Block
A) SND_MSG
Function Block Description
Input
REQ : Executes Function Block at 1(rising edge).
FL_ID : Field number of frame list to transmit.
Output
NDR : If executed without error, 1 is output as kept until next
Function Block is called.
ERR : If error occurs, 1 is output as kept until next Function Block
is called.
STATUS : If error occurs, error code is output.
①
Function
Function Block to transmit the frame registered in frame list.
②
Error
Error code is output to output STATUS. Refer to Error codes for details.
RE
FL_
ID
ND
ER
STA
T
S
SND_MSG
BOO
USIN
BOO
BOO
USIN