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Mitsubishi Electric QJ71DN91 User Manual Page 50

Melsec q series, devicenet master-slave module.
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3 SPECIFICATIONS
Bit 8 to 15
Used by the system
3 - 24
(c)
Reading communication error information of a slave node
The communication error information that was read is stored.
Table 3.17 Reading communication error information
Buffer memory address
(Hex.)
0130
H
0131
H
0132
H
0133
H
0134
H
0135
H
*1: Refer to the manual of each slave node for actual failures and troubleshooting.
*2: Refer to the manual of each slave node for the meaning of each error code.
1)
Slave status
The on/off status of each bit notifies of a slave node error as shown
below.
Bit7
Bit6
Bit5
If the corresponding bit is on, any of
these errors may have occurred.
(d)
Other message communications
For details, refer to DeviceNet Specifications (Release2.0) Volumes 1 and
2.
Item
Slave status
Use prohibited
Communication error
General DeviceNet error
code
Additional error code
Heartbeat timeout count
Bit4
Bit3
Bit2
Bit1
MELSEC-Q
Description
Stores data showing whether or not the slave node
is set with parameters, whether or not it has
responded, etc. (See 1).)
Stores the same error code as in Error Information
for Master Function (address 01B1
(Refer to Section 10.2.1.)
Stores a general DeviceNet error code sent from the
slave node. Valid only when the communication
error code is 35 (0023
). (Refer to Section 10.2.3.)
H
*1
Stores an additional error code sent from the slave
node. *2
Stores the number of times the QJ71DN91 has
detected failure of each slave node.
Bit0
Slave node did not respond.
Slave node refused to set
the attribute data.
I/O data size set by a
parameter is different from
the actual size.
Set as a reserved node
with a parameter.
).
H
3 - 24

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