Buffer Memory List - Mitsubishi Electric MELSEC iQ-R Series User Manual

Buffer memory list

Address Purpose
Dec (Hex)
CH1 CH2
0, 1 Use prohibited
(0H, 1H)
2 For flash ROM
(2H) (user frame)
access
3
(3H)
4
(4H)
5
(5H)
6 to 45
(6H to 2DH)
46 For designation
(2EH) of the modem
function-1
47 Use prohibited
(2FH)
48 For designation
(30H) of the modem
function-1
49
(31H)
50
(32H)
51
(33H)
52
(34H)
53
(35H)
54 Use prohibited
(36H)
55 For designation
(37H) of the modem
function-1
56
(38H)
57 to 127 Use prohibited
(39H to 7FH)
APPENDICES APPENDIX
498
Appendix 3 Buffer Memory
Name
System area
Register/read/delete instructions
0: No request
1: Registration request
2: Read request
3: Deletion request
Frame No. direction
0: No designation
Other than 0: Frame number
Registration/read/delete result storage
0: Normal completion
Other than 0: Abnormal completion
Registration data byte count designation
0: No designation
Other than 0: Number of registered data bytes
(maximum 80 bytes)
User frame
0: No designation
Other than 0: Registration data (maximum 80
bytes)
Modem connection CH specification
0: None
1: CH1
2: CH2
System area
Connection re-try count designation
1 to 5: Number of retries
Connection retry interval designation
90 to 300: Connection retry interval (unit: s)
Initialization/connection timeout designation
1 to 60: Timeout time (unit: s)
Number of initialization retries designation
1 to 5: Number of retries
Data No. for initialization designation
0H : Send designated data for initialization by
the send user frame designation area.
7D0H to 801FH: Data number for initialization
Data No. for connection designation
0H: No designation
BB8H to 801FH: Data number for connection
System area
No-communication interval time designation
0: Infinite wait
1 to 120: No communication interval (line
disconnection wait time)
(unit: min)
RS/CS control enable/disable designation
0: Control disabled
1: Control enabled
System area
Defaul Protocol
t value
MC Non Bi


0 RW
0
0
0
0
0 RW

3 (3 RW
times)
180
(180
second
s)
60 (60
second
s)
3 (3
times)
7D0H
0

30 (30 RW
minutes
)
1

Reference
Pd


Page 161 Buffer
memory
 Page 161 Buffer
memory

Page 161 Buffer
memory