Mitsubishi Electric QJ71DN91, User Manual

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MELSEC-Q
3 SPECIFICATIONS
3.4 Buffer Memory
This section explains the buffer memory of the QJ71DN91.
3.4.1 Buffer memory list
The buffer memory list is shown in Table 3.6.
Table 3.6 Buffer memory list (1/3)
Address
Item Description
Availability
Read/Write *1
Reference
section Hex. Dec.
Master
function
Slave
function
0000
H
to
010F
H
0 to 271 Use prohibited — — — — —
0110
H
to
011F
H
272 to 287
Message Communication
Command A command for message
communication is set.
— R/W
3.4.2
0120
H
to
012F
H
288 to 303
Message Communication
Result Stores result data of message
communication.
— R
0130
H
to
01A7
H
304 to 423
Message Communication
Data Stores transmit and receive data of
message communication.
— R/W
01A8
H
to
01AF
H
424 to 431 Use prohibited — — — — —
01B0
H
432
Master Function
Communication Status Stores the communication status of
the master function.
— R
3.4.3
01B1
H
433
Error Information for
Master Function Stores a communication error code of
the error occurred.
— R
01B2
H
434 Bus Error Counter
Stores an illegal frame count of the
CAN chip (communication chip for
DeviceNet) when it exceeds 96.
— R
01B3
H
435 Bus Off Counter
Stores the number of times the
QJ71DN91 was placed in the bus off
status.
— R
01B4
H
to
01B7
H
436 to 439 Node Configuration Status
Stores parameter setting status of
each slave node.
— R 3.4.4
01B8
H
to
01BB
H
440 to 443 Use prohibited — — — — —
01BC
H
to
01BF
H
444 to 447
Node Communication
Status Stores I/O communication status of
each slave node.
— R
3.4.4
01C0
H
to
01C3
H
448 to 451
Node Communication
Error Status Stores I/O communication error status
of each slave node.
— R
01C4
H
to
01C7
H
452 to 455 Node Fault Status
Stores communication fault status of
each slave node.
— R
01C8
H
to
01CB
H
456 to 459 Use prohibited — — — — —
01CC
H
to
01CF
H
460 to 463
Failed Node Detection
Setting Whether or not to detect any failed
node is set.
— R/W 3.4.4
01D0
H
to
01D3
H
464 to 467 Use prohibited — — — — —
01D4
H
to
03CF
H
468 to 975
Parameters for Master
Function *2 Parameters for master function are
set.
— R/W 3.4.5
03D0
H
to
03EF
H
976 to 1007 Use prohibited — — — — —
03F0
H
1008
Auto Configuration
Operation Setting
Operation of auto configuration is set. — R/W 3.4.5
03F1
H
to
04FF
H
1009 to 1279 Use prohibited — — — — —
0500
H
to
05FB
H
1280 to 1531
I/O Address Area for
Master Function
Stores the start addresses and sizes
(in word units) of Master Function
Receive Data (address: 0700
H
to
07FF
H
) and Master Function Transmit
Data (address: 0900
H
to 09FF
H
) for
slave nodes.
— R 3.4.6