Link State Transitions - Hitachi SV.LINK User Manual

6 USER GUIDE
6.6 SV.LINK State Transitions
SV.LINK state transitions are indicated below:
CPU or LPU
STOP or down
Communication error
retries exceeded
Regeneration with
socket closed
List of state transition event types
No.
1
2
3
4
5
6
7
Power OFF
Power ON
Wait for CPU
RUN/STOP
CPU or LPU RUN
Wait for startup
Start
User parameter
check
Communication
in progress
Regeneration completed
Event type
Instruction from ladder
Detection by module
User operation
CPU or LPU detection
Power OFF
From any state
CPU or LPU
STOP
CPU or LPU STOP
Stop
CPU or LPU STOP
Parameter error
Parameter
check OK
Event name
Start or stop
Parameter check OK or error
Communication error retries exceeded
or regeneration completed
Power ON or OFF
CPU or LPU RUN or STOP
Reset or power-on reset
CPU or LPU down
6-16
Reset or Power-on reset
Error stop
(Red LED illuminated)