Receive Byte Count <Bfm #2000; Receive Buffers <Bfm #2001 To #2256; Spare Receive Buffers For Interlink Connection Mode <Bfm #2257 To #2271 - Mitsubishi Electric MELSEC FX Series User Manual

FX communication
10.2.22 Receive Byte Count <BFM #2000>
Saved value: 0 to 512
The byte count received from the counterpart equipment is saved.
This value is cleared by the receive completion reset command (BFM #1 b2).
*1 Spare buffers in the interlink connection mode
10.2.23 Receive Buffers <BFM #2001 to #2256>
Each of them is a 16-bit buffer to save the data received from the counterpart equipment, and
accommodates 512 bytes/256 words. The buffer structure is equivalent to that of the send
buffers.
The receive contents are cleared by the receive completion reset command (BFM #1 b2).
10.2.24 Spare Receive Buffers for Interlink Connection Mode <BFM #2257 to #2271>
Each of them is a spare buffer for the interlink connection in the case where the data exceeding
512 bytes is received, and also used to receive data after the request to send (RS) signal is
turned off until the send operation of the counterpart equipment is suspended.
The receive contents are cleared by the receive completion reset command (BFM #1 b2).
+30*1
(when buffer data length is 16 bits)
+15*1
0 to 256 (when buffer data length is 8 bits)
FX -232IF 10
2N
10
10-15