Toshiba GR200 Series - (ii) LRE switches; (iii) Entry Forget Time

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1334 -
Operator Workstation
B-Frame
R
L
He lp
Cancel
ENTER
F7
F6
F5
F4
F3
F2
F1
TOSHIBA
ER ROR
Port A
Tx
Rx
Port B
Tx
Rx
LAN module
(C11)
LAN module
(C12)
I
O
IN S ER VICE
Data
CPU
IED2
R
L
He lp
Cancel
ENTER
F7
F6
F5
F4
F3
F2
F1
TOSHIBA
ER ROR
Port A
Tx
Rx
Port B
Tx
Rx
LAN module
(C11)
LAN module
(C12)
I
O
IN S ER VICE
Data
CPU
Substation Computer
Port B
Port A
Tx
Tx
Rx
Rx
Destination
Data
B-Frame
A-Frame
A-Frame
R
L
He lp
Cancel
ENTER
F7
F6
F5
F4
F3
F2
F1
TOSHIBA
ER ROR
I
O
IN S ER VICE
IED1
Port B
Port A
Tx
Tx
Rx
Rx
Data
CPU
B-Frame
A-Frame
A-Frame
B-Frame
B-Frame
A-Frame
IED3
Source
CPU
QuadBox
QuadBox
Port B
Port A
Tx
Tx
Rx
Rx
Data
CPU
Substation Computer
R
L
He lp
Cancel
ENTER
F7
F6
F5
F4
F3
F2
F1
TOSHIBA
ER ROR
Port A
Tx
Rx
Port B
Tx
Rx
LAN module
(C11)
LAN module
(C12)
I
O
IN S ER VICE
Data
CPU
IED4
B-Frame
A-Frame
Ring LAN1
Ring LAN2
Figure 11.2-6 HSR example for ring-LAN with DANH
Note: Prohibition symbol () shows the frame is removed by the next terminals.
(ii) LRE switches
The user should set On for both settings [LRE_PortA_EN] and [LRE_PortB_EN] so that the
LRE can duplicate the data for A-Frame and B-Frame.
(iii) Entry Forget Time
Packets are transferred in A-Frame and B-Frame over the LAN. The user should set the
[EntryForgetTime] to delete a duplicated frame listed in the duplicating table. The duplicated
frame will be erased when it stays longer than the setting time.
For Figure 11.2-5 example, the IED1 (Source) duplicates data by the LRE. The duplicated
data (in A and B-Frames) are transferred simultaneously over the LAN_A and LAN_B. In the
meantime, both frames cannot arrive at Substation computer (Destination). If the duplicated
frame is older than the setting [EntryForgetTime], the duplicated frame will be removed.
The [EntryForgetTime] has default 400ms setting, but the user can change it for an
appropriate value among 100 to 10,000ms. The setting value should be taken account of the