Sequence Program Explanation; For Serial Connection; Use Program; Label Variable Definition - Brother MELSEC iQ-F TD-4420TN Program Reference Manual

6. Sequence program explanation

6.1. For serial connection

6.1.1. Use program

Project file name in
this program
Program name
Development tool
Use language
Use FB
* Project file target programmable controllers are set by the MELSEC iQ-F series.

6.1.2. Label variable definition

Global labels used in this program are shown in the following.
No. Label name
1 uTransErrCode
2 wTransDataSize
3 wSendData[128]
4 bTransExecFlg
5 bStartSend
6 bSend_OK
7 bSend_NG
* Data type
WORD
INT
BOOL
gw_ld-brother-tt-232_f_ot.gx3
SETPRINT
GX Works3 Version 1.070Y
Ladder, ST language, FB
For serial communication module
M+FX5UCPU-SerialComm_Output
Data type
WORD
INT
INT
BOOL
BOOL
BOOL
BOOL
Word [without code]/bit stream [16 bit]
Word [with code]
Bit
Transmission error code
Transmission data length
Transmission data buffer
Data transmission in execution
Transmission start
Transmission success
Transmission failure
19
MELSEC iQ-R Brother Label Printer Sample Program Reference Manual
Usage