APPENDICES
Appendix 2 Network Status at Power ON/OFF and Board Reset During Data Linking
Appendix 2.1 Network status at power ON/OFF
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INDEX
(2) With the external power supply function
When a CC-Link IE Controller Network board with the external power supply function
(Q80BD-J71GP21S-SX, Q81BD-J71GP21S-SX) is used, the network status varies
depending on the ON/OFF status of the external power supply and personal computer
as shown below.
POINT
The following explains the network status when the external power supply is being
supplied.
When the external power supply is not being supplied, refer to (1) in this section
because the network status is the same status as the external power supply
function is not applied.
(a) When the system is started
(b) When the system is shut down
No.
Time frame
External
power
supply
Personal
computer
power
Loop
status
*1
Communication
status (baton
pass status)
*2
Data link status
of own station
(cyclic
transmission
status)
*3
Data link status
other than own
station (cyclic
transmission
status)
*3
1
External power supply OFF
- External power supply ON
OFF
OFF
Loopback
occurred
Error
Error
Error
2
External power supply ON
- Before personal computer
start-up (power-ON)
ON
OFF
3
Personal computer start-up
(power-ON)
- Before CC-Link IE Controller
Network board driver start-up
ON
ON
4
CC-Link IE Controller Network
board driver in operation
ON
ON
Loopback
occurred
Error
Error
Normal
*4
5
After CC-Link IE Controller
Network board driver start-up
ON
ON
Normal
Normal
Normal
Normal
No.
Time frame
External
power
supply
Personal
computer
power
Loop
status
*1
Communication
status (baton
pass status)
*2
Data link status
of own station
(cyclic
transmission
status)
*3
Data link status
other than own
station (cyclic
transmission
status)
*3
6
Personal computer power OFF
(External power supply ON)
ON
OFF
Normal
Normal
Error
Normal
7
Personal computer power OFF
(External power supply OFF)
OFF
OFF
Loopback
occurred
Error
Error
Normal
*4