User`s manual

230
9.1.2 Default registration frame (read only)
This frame is registered to the Q series C24 in advance and can be used in the same way as the other user frames.
(1) Overview
The default registration frame is registered in the OS ROM of the Q series C24. The following table lists one-byte
data (codes: 01H to FEH) to a maximum of five-byte data, which is registered in the frames and can be used for
read-only (frame numbers: 1H to 3E7H).
Each of these frames is treated as an user frame.
(2) Default registration frame write data and data contents that are transmitted
and received
The following lists the codes of the register data and the data contents that are transmitted and received.
*1 The combination of FFH, H in the register code is used to handle variable data (sum check code, Q series C24
station No., etc.) as part of the user frame. The data contents that are transmitted and received and the byte count
depend on the code combined with register code FFH. See Page 221, Section 9.1.1 (1) for the register code
combinations that can be handled as variable data and the data contents that are transmitted and received.
Default registration frame No.
(Hexadecimal (decimal))
Register data code (1st byte to nth
byte)
Registered bytes
count
Frame byte
count
Data contents transmitted and
received
data contents
1H (1) 01H
11
(Data codes shown at the left)
2H (2) 02H STX
 
FEH (254) FEH (Data codes shown at the left)
FFH (255) (For variable data designation)
100H (256) 00H 1
1
NUL
101H (257) FFH 1 (Data codes shown at the left)
102H (258) 0DH, 0AH
22
CR, LF
103H (259) 10H, 02H DLE, STX
104H (260) 10H, 03H DLE, ETX
105H (261) 00H, FEH 2 2 (Data codes shown at the left)
106H (262) 00H, 00H, FEH 3 3 (Data codes shown at the left)
107H (263) 03H, FFH, F1H 3 2
ETX, Sum check code
*1
108H (264) 03H, FFH, F1H, 0DH, 0AH 5 4
ETX, sum check code, CR, LF
*1
109H (265)
(None)  
10DH (269)
10EH (270) FFH, EEH
21
Sum check code
*1
110H (272) FFH, F0H
111H (273) FFH, F1H
113H (275) FFH, F3H
114H (276) FFH, F4H
116H (278) FFH, F6H
117H (279) FFH, F7H
119H (281) FFH, F9H
11FH (287) FFH, FFH Register code FFH data (1 byte)
120H (288)
(None)  
3E7H (999)