Mitsubishi Electric Melsec Q Series User Manual page 222

7
PROGRAMMING
(2) Response format
Buffer memory address
26446(674E )
H
26447(674F )
H
26448(6750 )
H
26449(6751 )
H
26450(6752 )
H
26451(6753 )
H
7
- 33 7.5 Program Example for Alarm Acquisition
7.5.1 Alarm read request (without ACK)
(a) When normally completed
Table7.31 Response Format (When Normally Completed)
A response code is stored.
Stored value: A500
H
The FDL address of the DP-Slave from which alarm was read is stored.
Stored value: 0000 to 007D
H
The read completion status of the alarm data is stored.
b15 to b8
0
Bit Description
Read completion status of alarm data No.1
b0
0: Failed or not executed
1: Normally completed
Read completion status of alarm data No.2
b1
0: Failed or not executed
1: Normally completed
Read completion status of alarm data No.3
b2
0: Failed or not executed
1: Normally completed
Read completion status of alarm data No.4
b3
0: Failed or not executed
1: Normally completed
The length of the alarm data is stored. (Unit: byte)
Stored value: 1 to 64
The alarm type is stored.
Stored
Alarm data No.1
The slot No. is stored.
Stored value: 0 to 254
Result
(0 to 125)
H
b7 to b0
See below.
Bit
b4
b5
b6
b7
Alarm type
value
A510 Diagnosis alarm
H
A511 Process alarm
H
A512 Pull alarm
H
A513 Plug alarm
H
A514 Status alarm
H
A515 Update alarm
H
Manufacturer
A516
H
specific alarm
Description
Read completion status of alarm data No.5
0: Failed or not executed
1: Normally completed
Read completion status of alarm data No.6
0: Failed or not executed
1: Normally completed
Read completion status of alarm data No.7
0: Failed or not executed
1: Normally completed
Read completion status of alarm data No.8
0: Failed or not executed
1: Normally completed
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