Mitsubishi QJ71DN91 User Manual page 47

3 SPECIFICATIONS
Bit15 to bit 8
Used by the system
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(c) Reading communication error information
The communication error information that was read is stored.
The data set in each address is shown in Table 3.14.
Table 3.14 Setting data for reading communication error information
Buffer memory address
(hexadecimal)
0130
H
0131
H
0132
H
0133
H
0134
H
0135
H
1: Refer to the manual of each slave node for the contents and handling for the actual errors.
2: Refer to the manual of each slave node for the meaning of each error code.
1) Slave status
ON/OFF of each bit notifies the down status of the slave node, as
shown in the following diagram:
Bit7 Bit6 Bit5
If the corresponding bit is ON, these
errors have occurred.
Item
Slave status
Use prohibited
Communication error
DeviceNet general error
code
Additional error code
Heartbeat timeout count
Bit4 Bit3 Bit2 Bit1
MELSEC-Q
Description
Indicates whether or not the slave node is set in the
parameters, and the slave node has responded, etc.
(See 1).)
—
Stores the same error code as the higher byte of the
buffer memory address 01B1 .
H
See Section 8.3.1, "Communication error code."
Stores a DeviceNet general error code sent from the
slave node. Valid only when the communication
error code is 35(0023 ). (See 2).)
H
Stores an additional error code sent from the slave
2
node.
Stores the number of times that detected the down
status of each slave node by DN91.
Bit0
Slave node did not respond.
Slave node refused to set
the attribute data.
I/O data size set by the
parameters and the actual
size are different.
Sets as a reserved node
with a parameter.
1
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