User`s manual
239
CHAPTER 9 CONTENTS AND REGISTRATION OF THE USER FRAMES FOR DATA COMMUNICATION
9
9.4 Register/Read/Delete User Frames
(b) User frame storage area (Addresses: 6H to 2DH, 1B01H to 1B28H, 1B2AH to
1B51H,...1FCFH to 1FF6H)
• During the register operation, the user sequentially stores the register data of the user frame to be
registered in (L) (H) order, beginning from the head area of the given area range.
• During the read operation, the register data of the registered user frame is stored with the same contents
as when registering.
Contents stored to user frame storage area when a user frame to transmit and receive ETX, sum check
code, CR, and LF (register codes: 03H, FFH, F1H, 0DH, 0AH) is registered to the Flash ROM.
(c) User frame registration status storage area (Addresses: 205H to 21DH)
• The registration status of user frames to the Flash ROM is stored as the values shown below.
• The contents of each area that indicates the registration status are shown below. The contents of the area
are indicated in one user frame No./1 bit form.
02H 00H 3BH
02H FFH,01H
;
3BH
41H
A
31H
1
ABH
(12ABH)
12H 03H 0DH
03H FFH,F1H 0DH 0AH
32H 01H 0AH
6H
7H
8H
(H) (L)
S
T
X
E
T
X
C
R
L
F
Arbitrary data
(Data contents transmitted and received)
(Part corresponding to write frame above)
Address
Buffer memory
Last data
Head data
FFH to 03H
0DH to F1H
00H to 0AH
User frame
(first frame)
User frame
(last frame)
User frame register
code
Transmission/reception
data corresponding to
register code
Transmission/reception
data code
Station
No.
Sum
check
code
Sum check code
calculation range
The Q series C24 calculates
the programmable controller CPU
checksum.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
1
1
0
1
1
0
205H
206H
211H
b15 b8 b7 b0
0: Not registered
1: Registered
Address
User frame No. 1199 (4AFH) registration
status (Subsequent bits are spares)
User frame No. 1015 (3F9H)
registration status
User frame No. 1000 (3E8H)
registration status
to to
to 030FH
to 0303H
to 0000H
(H) Buffer memory (L)