Mitsubishi Q01CPU User Manual page 674

12
TROUBLESHOOTING
Special
ACPU Special
Register
Special Register for
after
Register Modification
Conversion
D9204 SD1204
D9205 SD1205
D9206 SD1206
D9210 SD1210
D9211 SD1211
D9212 SD1212
D9213 SD1213
D9214 SD1214
D9215 SD1215
D9216 SD1216
D9217 SD1217
D9218 SD1218
D9219 SD1219
12
- 350 12.8 Special Register List
Table12.55 Special register
Name Meaning
0 : Forward loop,
during data link
1 : Reverse loop,
during data link
2 : Loopback
implemented in
forward/reverse
directions
–
Link status 3 : Loopback
implemented only
in forward
direction
4 : Loopback
implemented only
in reverse
direction
5 : Data link disabled
Station Station that
–
implementing implemented forward
loopback loopback
Station Station that
–
implementing implemented reverse
loopback loopback
Number of Stored as cumulative
–
retries value
Number of
Stored as cumulative
–
times loop
value
selected
Local station Stores conditions for
–
operation status up to numbers 1 to 16
Stores conditions for
Local station
–
up to numbers 17 to
operation status
32
Stores conditions for
Local station
–
up to numbers 33 to
operation status
48
Stores conditions for
Local station
–
up to numbers 49 to
operation status
64
Local station
Stores conditions for
–
error detect
up to numbers 1 to 16
status
Local station Stores conditions for
–
error detect up to numbers 17 to
status 32
Local station Stores conditions for
–
error detect up to numbers 33 to
status 48
Local station Stores conditions for
–
error detect up to numbers 49 to
status 64
Details
• Loopback in forward loop only
Master
Station Station
station
No.1
No.2
Forward loopback
• Loopback in reverse loop only
Master
Station
station Station
No.1 No.2
Reverse loopback
Stores the local or remote I/O station number at which loopback is
being executed.
Master
station
Station
Station
No.1
No.2
Forward loopback
Reverse loopback
In the above example, 1 is stored into D9205 and 3 into D9206.
If data link returns to normal status (data link in forward loop), values
in D9205 and D9206 remain 1 and 3. To return them to "0", therefore,
use a sequence program or perform reset operation.
Stores the number of retry times due to transmission error.
Count stops at maximum of "FFFF " .
H
To return the value to "0", perform reset operation.
Stores the number of times the loop line has been switched to reverse
loop or loopback.
Count stops at maximum of "FFFF ".
H
To return the value to "0", perform reset operation.
Stores the local station numbers which are in STOP or PAUSE mode.
Bit
Device
number b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
SD1212 L16 L15 L14 L13 L12 L11 L10 L9 L8 L7 L6 L5 L4 L3 L2 L1
SD1213 L32 L31 L30 L29 L28 L27 L26 L25
SD1214 L48 L47 L46 L45 L44 L43 L42 L41
SD1215 L64 L63 L62 L61 L60 L59 L58 L57
When a local station is switched to STOP or PAUSE mode, the bit
corresponding to the station number in the register becomes "1".
Example: When station 7 switches to STOP mode, b6 in SD1212
becomes "1" , and when SD1212 is monitored, its value is
"64 (40 )".
H
Stores the local station numbers which are in error.
Bit
Device
number
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
SD1216 L16 L15 L14 L13 L12 L11 L10 L9 L8 L7 L6 L5 L4 L3 L2 L1
SD1217 L32 L31 L30 L29 L28 L27 L26 L25
SD1218 L48 L47 L46 L45 L44 L43 L42 L41
SD1219 L64 L63 L62 L61 L60 L59 L58 L57
If a local station detects an error, the bit corresponding to the station
number becomes "1".
Example: When station 6 and 12 detect an error, b5 and 11 in
SD1216 become "1", and when SD1216 is monitored, its
value is "2080 (820 )".
H
Corresponding
Station
Station n
No.3
Station
Station n
No.3
Station
Station n
No.3
L24 L23 L22 L21 L20 L19 L18 L17
L40 L39 L38 L37 L36 L35 L34 L33
L56 L55 L54 L53 L52 L51 L50 L49
L24 L23 L22 L21 L20 L19 L18 L17
L40 L39 L38 L37 L36 L35 L34 L33
L56 L55 L54 L53 L52 L51 L50 L49
CPU
QnA