Specifications

App - 8
Link special relay (SB) list (Continued)
Use permitted/prohibited
Control
station
Normal
station
Remote
master
station
Remote
I/O
station
No. Name Description
Optical Coaxial Optical
C
oaxial
Optical Coaxial Optical Coaxial
Control station status
(host)
For the PLC to PLC network
Indicates the host's status. (Valid when SB0047 is off.)
Off: Normal station
On: Control station (SB0044 is on)
Sub-control station (SB0044 is off)
*
3
SB0048
(72)
Remote master station
status
(host)
For the remote I/O network
Indicates the host's status. (Valid when SB0047 is off.)
Off: Remote I/O station
On: Remote master station
*
3
SB0049
(73)
Host data link status
Indicates the host's data link operation status.
Off: Normal
On: Abnormal (Set after refreshing completes.)
*
3
*
4
SB004A
(74)
Host CPU status (1)
Indicates the host's CPU status.
Off: Normal
On: Minor error occurred
— —
*
3
*
5
SB004B
(75)
Host CPU status (2)
Indicates the host's CPU status.
Off: Normal
On: Serious or fatal error occurred
— —
*
3
SB004C
(76)
Cyclic transmission
start acknowledgment
status
Indicates the startup acknowledgment status of the cyclic transmission.
Off: Not acknowledged (SB0000 is off)
On: Stop acknowledged (SB0000 is on)
*
3
SB004D
(77)
Cyclic transmission
start completion status
Indicates the completion status of the cyclic transmission.
Off: Not completed (SB0000 is off)
On: Start completed (SB0000 is on)
*3
SB004E
(78)
Cyclic transmission
stop acknowledgment
status
Indicates the stop acknowledgment status of the cyclic transmission.
Off: Not acknowledged (SB0001 is off)
On: Stop acknowledged (SB0001 is on)
*3
SB004F
(79)
Cyclic transmission
stop completion status
Indicates the stop completion status of the cyclic transmission.
Off: Not completed (SB0001 is off)
On: Stop completed (SB0001 is on)
*
3
SB0050
(80)
Cyclic transmission
start acknowledgment
status
Indicates the startup acknowledgment status of the cyclic transmission.
Off: Not acknowledged (SB0002 is off)
On: Start acknowledged (SB0002 is on)
*
3
SB0051
(81)
Cyclic transmission
start completion status
Indicates the completion status of the cyclic transmission.
Off: Not completed (SB0002 is off)
On: Start completed (SB0002 is on)
*
3
SB0052
(82)
Cyclic transmission
stop acknowledgment
status
Indicates the stop acknowledgment status of the cyclic transmission.
Off: Not acknowledged (SB0003 is off)
On: Start acknowledged (SB0003 is on)
*
3
SB0053
(83)
Cyclic transmission
stop completion status
Indicates the stop completion status of the cyclic transmission.
Off: Not completed (SB0003 is off)
On: Stop completed (SB0003 is on)
*
3
SB0054
(84)
Parameter receive
status
Indicates the parameter receive status.
Off: Receive completed
On: Not received
*
3
SB0055
(85)
Received parameter
error
Indicates the status of the received parameters.
Off: Parameters normal
On: Parameters abnormal
*3: Valid only when SB0047 is off. When it turns on (error), the last data are retained.
*4: Minor errors (battery error, etc.) are the type of errors that do not affect the CPU operation.
*5: Serious errors (WDT error, etc.) are the type of errors that stop the CPU operation.
Fatal errors (RAM error, etc.) are also the type of errors that stop the CPU operation. (Error code: 11
)