Toshiba GR200 Series Instruction Manual page 534

Status signals for Port A and Port B:
using PLC signal monitoring points 'Port1_Link (3100061001)' and 'Port2_Link
(3100061001)' of the HOTST function. For example, when the user wishes to monitor
the status of the Prot1_Link, use the 'Port1_Link'. Consequently, the user can get the
physical information about the Port A: the value '1' is issued when the communication
is made (Linkup), whereas value '0' is issued when the communication is not made
(Linkdown).
When Hot_Standby is set for the [RedundantMode], the user can find a running port
using the PLC signal monitoring point 'Using_CH (3100081001)' of the HOTST
function. Value '1' is provided when the
provided when the Port B is running.
Monitor setting: The Hot-standby (HOTST) function can send PING packets to
remote devices thus enabling the Hot-standby function to monitor the state of the
network. The Hot-standby function checks for a response signal from the remote
device. If the Hot-standby function does not receive a response signal, the Hot-
standby function will switch to the other port. The operation is performed when
the user sets the [RedundantMode]=
Settings [Ping_IP1] to [Ping_IP12] are provided in the Hot-standby function for the
monitoring of remote devices on the network. When the user sets plural remote IP
addresses for the settings [Ping_IP*], and if the Hot-standby function does not receive
a response from any one of these remote devices, the Hot-standby function determines
that a communication failure has occurred. Table 10.2-3 shows the network
monitoring settings for Hot-standby operation.
Table 10.2-3 Settings network monitoring on Hot-standby
Setting items Range
NetMonitor_EN
Ping_IP1
to
Ping_IP12 255.255.255.255
Ping_Wait 1–10 (sec)
Ping_Interval 1–120 (sec)
Chk_Count
Off/On Enabling switch for monitoring
The user can set twelve IP addresses at 12 remote
0.0.0.0
terminals.
to
Value "0.0.0.0"should be set respectively when
the remote IP addresses are not provided.
Waiting time to PING response; if any one of the
responses is not received, after the setting time
has elapsed, the function will determine that there
has been no-response.
Interval of PING send; a PING packet is sent
sequentially in accordance with this setting.
Number of PING packets for checking; the "no-
1–10 response "condition is determined when the IED is
unable to obtain a number of responses from the
- 520 -
The user can also examine the LAN status
Port A
is running, whereas value '2' is
and [NetMonitor_EN] = On.
Hot_Standby
Meaning
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)
6F2S1931 (0.20)
Default
Off
0.0.0.0
1
5
3