Mitsubishi FX3U-USB-BD User Manual page 618

FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (FX
5) Status <BFM #28>
b0 → M10: Sending complete
b1 → M11: Receiving complete
b2 → M12: Receiving timeout
b3 → M13: Error occurrence
b4 → M14: Receiving suspended
b5 → M15: Undefined
b6 → M16: Sending
b7 → M17: Receiving
6) Number of bytes to be sent <BFM #1000>
9 bytes
7) Send data buffer <BFM #1001 and later>
The send data "Test data" in ASCII code is provided to 9 bytes (as specified in BFM #1000).
(BFM#1001)
(BFM#1002)
(BFM#1003)
(BFM#1004)
(BFM#1005)
8) Receive data buffer <BFM #2001 and later>
Eight bytes specified by the maximum number of receivable bytes (BFM #2) are read to data registers
D301 to D308 in the PLC.
G-38
-232IF)
2N
highest-order lowest-order
Ignored T (54H)
Ignored e (65H)
Ignored s (73H)
Ignored t (74H)
Ignored (20H)
Space
b8 → M18: RS(RTS)
b9 → M19: ER(DTR)
b10 → M20: Undefined
b11 → M21: Undefined
b12 → M22: DR(DSR)
b13 → M23: CD(DCD)
b14 → M24: CS(CTS)
b15 → M25: CI(RI)
1st byte
(BFM#1006)
2nd byte
(BFM#1007)
3rd byte
(BFM#1008)
4th byte
(BFM#1009)
5th byte
6 Practical Program Examples
6.2 Sending/Receiving 8-Bit Buffer Length Data
Ignored d (64H)
Ignored a (61H)
Ignored t (74H)
Ignored a (61H)
6th byte
7th byte
8th byte
9th byte