Mitsubishi MELSEC-A series, Programming Manual

Page: 444 / 508

APP - 39
APPENDICES
(2) Link special registers only valid when the host station is a local station
Table 1.6 Link Special Register List
Number Name Description Details
D9243
Own station number
check Stores a station number.
(0 to 64)
Allows a local station to confirm its own station number.
D9244
Total number of slave
stations Stores the number of
slave station
Indicates the number of slave stations in one loop.
D9245
Number of receive
error detection times
Total number stored
Stores the number of times the following transmission errors have
been detected: CRC, OVER, AB. IF
Count is made to a maximum of FFFF
H
. RESET to return the count
to 0.
D9248
Local station
operating status Stores the status of
stations 1 to 16
Stores the local station number which is in STOP or PAUSE mode.
The bit corresponding to the station number which is in STOP or
PAUSE mode, becomes "1" .
Example:When local stations 7 and 15 are in STOP mode, bits 6 and
14 of D9248 become "1" , and when D9248 is monitored,
its value is "16448 (4040
H
)" .
D9249
Local station
operating status Stores the status of
stations 17 to 32
D9250
Local station
operating status Stores the status of
stations 33 to 48
D9251
Local station
operating status Stores the status of
stations 49 to 64
D9252 Local station error
Stores the status of
stations 1 to 16
Stores the local station number other than the host, which is in error.
The bit corresponding to the station number which is in error,
becomes "1" .
Example:When local station 12 is in error, bit 11 of D9252 becomes
"1", and when D9252 is monitored, its value is "2048
(800
H
)".
D9253 Local station error
Stores the status of
stations 17 to 32
D9254 Local station error
Stores the status of
stations 33 to 48
D9255 Local station error
Stores the status of
stations 49 to 64
Device
number
Bit
D9248
D9249
D9250
D9251
L1
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
L16
L32
L48
L64
L15
L31
L47
L63
L14
L30
L46
L62
L13
L29
L45
L61
L12
L28
L44
L60
L11
L27
L43
L59
L10
L26
L42
L58
L9
L25
L41
L57
L8
L24
L40
L56
L7
L23
L39
L55
L6
L22
L38
L54
L5
L21
L37
L53
L4
L20
L36
L52
L3
L19
L35
L51
L2
L18
L34
L50
L17
L33
L49
Device
number
Bit
D9252
D9253
D9254
D9255
L1
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
L16
L32
L48
L64
L15
L31
L47
L63
L14
L30
L46
L62
L13
L29
L45
L61
L12
L28
L44
L60
L11
L27
L43
L59
L10
L26
L42
L58
L9
L25
L41
L57
L8
L24
L40
L56
L7
L23
L39
L55
L6
L22
L38
L54
L5
L21
L37
L53
L4
L20
L36
L52
L3
L19
L35
L51
L2
L18
L34
L50
L17
L33
L49