476
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.8 FNC 87 – RS2 / Serial Communication 2
Cautions
→
For other cautions, refer to the Data Communication Edition.
• Do not drive two or more RS (FNC 80) and/or RS2 (FNC 87) instructions for the same port at the same time.
• It is not permitted to use an "RS (FNC 80)/RS2 (FNC 87)" instruction and an "IVCK (FNC270) to IVMC (FNC275)",
"FLCRT (FNC300) to FLSTRD (FNC305)" instruction for the same port.
• When using a header and terminator, set the data in the header and terminator to corresponding devices (D) before
executing the RS2 instruction. Do not change the values of the header and terminator while the RS2 instruction is
being executed.
Function Changes According to Versions
Compatible Versions
Item
Function Summary
FX3G
FX3U
FX3UC
Ver. 1.00 or later
Ver. 2.30 or later
Ver. 2.30 or later
ch1
Data Set Ready (DSR) Flag
Turns the special device M8405 ON when
the DR (DSR) signal of ch1 is ON.
ch2
Data Set Ready (DSR) Flag
Turns the special device M8425 ON when
the DR (DSR) signal of ch2 is ON.
Содержание FX3G SERIES
Страница 1: ...FX3G FX3U FX3UC SERIES PROGRAMMABLE CONTROLLERS PROGRAMMING MANUAL Basic Applied Instructions Edition ...
Страница 2: ......
Страница 947: ......