Mitsubishi Electric MELSEC iQ-R Series User Manual page 254

■Variable data designation contents, data contents transmitted and received, and handling by
C24
The table below shows the registered codes (FFH+00H) to (FFH + FFH) combinations for handling variable data, the data
contents that are transmitted and received, and how C24 handles the data.
Variable data registered
code
1st byte 2nd byte
FFH 00H
01H
04H
05H
0AH
0BH
11H
17H
E5H
EBH
EEH
F0H
F1H
F3H
F4H
F6H
F7H
F9H
FFH
*1 During data communication using a user frame that handles the final frame, the contents of the "sum check code" in the transmission
setting set by the parameter will be ignored.
13 CONTENTS AND REGISTRATION OF USER FRAMES FOR DATA COMMUNICATION
252
13.1 User Frame Types and Contents During Communication
Data contents transmitted and received/C24 handling
When transmitting: Transmits the data code 00H (NULL) data (1
byte).
When receiving: Skips the given part (1 byte) of the receive user
frame. (Skips the check and performs receive processing.)
Transmits and receives the host station number as 1-byte binary
code data (00H to 1FH).
Transmits and receives the horizontal parity code in the calculating
range using 1 byte of binary code data.
Transmits and receives the horizontal parity code in the calculating
range using 2-byte ASCII code data
Transmits and receives the horizontal parity code in the calculating
range using 1 byte of binary code data.
Transmits and receives the horizontal parity code in the calculating
range using 2-byte ASCII code data
Transmits and receives the two's complement sum check code in
the calculating range.
Transmits and receives the sum check code in the calculating range.
*1
(Excluding the last one frame)
Transmits and receives the sum check code in the calculating
*1
range.
Transmits and receives the registered code FFH data (1 byte).
Calculating Detailed explanation
range
 Page 253 C24 processing
to the registered code
FFH+00H
Page 253 C24 processing
to the registered code
FFH+01H
Range 1 Page 254 C24 processing
to registered codes FFH+04H,
FFH+05H, FFH+0AH, and
FFH+0BH
Range 2
Page 255 C24 processing
Range 1
to registered codes FFH+11H
Range 2
and FFH+17H
Page 257 C24 processing
Range 3
to registered code FFH+E5H
Range 4 Page 257 C24 processing
to registered code FFH+EBH
Range 1 Page 256 C24 processing
to registered codes FFH+EEH
to FFH+F9H
Range 2
 