App - 45
APPENDICES
Table App.2.2 Special Register List (continued)
Number Name Description Details
D9196
Faulty station
detection
Bit pattern of the
faulty station
• Bit which corresponds to faulty I/O module or remote
terminal module is set (1).
(Bit which corresponds to a faulty station is set when
normal communication cannot be restored after
executing the number of retries set at D9174.)
• If automatic online return is enabled, bit which
corresponds to a faulty station is reset (0) when the
station is restored to normal.
• Data configuration
—
Usable with
A2C and A52G.
D9197
D9198
D9199
POINTS
(1) The contents of special registers are all cleared when power supply is turned
off regardless of latch clear operation or reset operation using the reset key
switch. The contents are retained when the RUN/STOP key switch is set to
STOP position.
(2) The contents of special registers marked *1 are not cleared even if normal
status is recovered. Use any of the following methods to clear the data.
(a) Method by user program
Insert the circuit shown at right into
the program, and turn on the clear
execution command contact to clear
the contents of registers.
(b) Method by peripheral device
Set the register to "0" by changing the present value with the test function
of peripheral device or set to "0" by forced reset. For the operation
method, refer to the Instruction Manual for each peripheral device.
(c) By moving the RESET key switch at the CPU module front to the RESET
position, the special register is set to "0".
(3) Data is written to the special registers marked *2 in the sequence program.
(4) Data is written to the special registers marked *3 in test mode of the
peripheral device.
b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
ddress
D9197
D9198
D9199
D9196
1: Error
0: Normal
b15
Station
16
Station
32
Station
48
Station
64
b14
Station
15
Station
31
Station
47
Station
63
b13
Station
14
Station
30
Station
46
Station
62
b12
Station
13
Station
29
Station
45
Station
61
b11
Station
12
Station
28
Station
44
Station
60
Station
11
Station
27
Station
43
Station
59
Station
10
Station
26
Station
42
Station
58
Station
9
Station
25
Station
41
Station
57
Station
8
Station
24
Station
40
Station
56
Station
7
Station
23
Station
39
Station
55
Station
6
Station
22
Station
38
Station
54
Station
5
Station
21
Station
37
Station
53
Station
4
Station
20
Station
36
Station
52
Station
3
Station
19
Station
35
Station
51
Station
2
Station
18
Station
34
Station
50
Station
1
Station
17
Station
33
Station
49
Clear execution
command
RST D9005
Special function register to be cleared
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