Mitsubishi Electric Melsec Q Series User Manual page 76

3
SPECIFICATIONS
(7) Slave status area (Alarm detection) (Un\G26416 to Un\G26424)
Address
DEC (HEX)
26417(6731 )
H
26418(6732 )
H
26419(6733 )
H
26420(6734 )
H
26421(6735 )
H
26423(6737 )
H
26424(6738 )
H
3
- 35 3.4 Buffer Memory
3.4.5 Slave status area
The information on alarm status of each DP-Slave is stored in this area.
(a) All stations' alarm status (Un\G26416)
This area stores the alarm detection status of all DP-Slaves. (Initial value: 0000
If an alarm is detected in any one of the stations in Each station's alarm status
(Un\G26417 to Un\G26424), 1 is stored in All stations' alarm status (Un\G26416).
0: No alarm in all DP-Slaves
1: Alarm detected
(b) Each station's alarm status (Un\G26417 to Un\G26424)
This area stores the alarm detection status of each DP-Slave. (Initial value:
0000 )
H
If an alarm is detected in any one of the stations and the corresponding bit turns
ON (1) in Each station's alarm status (Un\G26417 to Un\G26424), the RSP
ERR.LED turns ON.
0: No alarm (including reserved, temporary slave reservation, not-configured and/
or non-alarm-ready stations)
1: Alarm generated
b15 b14 b13 b12 b11 b10 b9
16 15 14 13 12 11
32 31 30 29 28 27
48 47 46 45 44 43
64 63 62 61 60 59
80 79 78 77 76 75
96 95 94 93 92 91
112 111 110 109 108 107
1 1 1 125 124 123 122
1 Bits b15 to b13 of address 26424 (6738
Figure 3.23 Each Station's Alarm Status (Un\G26417 to Un\G26424)
b8 b7 b6 b5 b4
10 9 8 7 6 5
26 25 24 23 22 21
42 41 40 39 38 37
58 57 56 55 54 53
74 73 72 71 70 69
90 89 88 87 86 85
106 105 104 103 102 101
121 120 119 118 117
) are fixed to 0.
H
b3 b2 b1 b0
Each bit indicates
4 3 2 1
the n-th DP-Slave.
20 19 18 17
36 35 34 33
52 51 50 49
68 67 66 65
84 83 82 81
100 99 98 97
116 115 114 113
)
H