Mitsubishi Electric QJ71DN91, Руководство пользователя

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MELSEC-Q
3 SPECIFICATIONS
3.4.8 Own node status area for slave function
This area stores the communication status, error information, etc. of the slave function.
(1) Slave Function Communication Status (address: 0600
H
/1536)
The I/O communication status of the slave function is stored.
Table 3.27 Slave function communication status
Value Name Operation
0000
H
Offline Initialization in progress, bus-off, or network power off
0040
H
Stop I/O communication stopped
0080
H
Ready Waiting to establish a connection from the master node
00C0
H
Operate I/O communication in progress
(a) When "No start" is set for Auto Communication Start Setting (address:
0631
H
)
Upon power-up, the status automatically changes from Offline (0000
H
) to
Stop (0040
H
).
When I/O Communication Request (Y11) is set to on, the status changes to
Operate (00C0
H
).
Note that, until receiving an I/O communication request from the master
node, the module is placed in Ready status (0080
H
).
(b) When "Start" is set for Auto Communication Start Setting (address: 0631
H
)
Upon power-up, the status automatically changes from Offline (0000
H
) to
Operate (00C0
H
).
Note that, until receiving an I/O communication request from the master
node, the module is placed in Stop status (0040
H
).
(c) When a reset message is received through the network
The status automatically returns to Offline (0000
H
), and then changes to
Operate (00C0
H
).
(2) Error Information for Slave Function (address: 0601
H
/1537)
A code for a communication error occurred in the slave function is stored.
For error notification and a clearing method of this area, refer to Section 3.3.3 (4).
(a) High byte
An error code is stored. (Refer to Section 10.2.1.)
(b) Low byte
The number of the node (MAC ID), where an error occurred, is stored.
FE
H
, FF
H
(254, 255): Own node (QJ71DN91)
0
H
to 3F
H
(0 to 63): Node No. (MAC ID) of the node where an error
occurred.