Pilz PSSnet SHL 8T MRP - Manual (Page 135)

Diagnosis
PSSnet SHL - Web- based Interface
Pilz GmbH & Co. KG, Felix- Wankel Str. 2, 73760 Ostfildern
7.11 Service mode
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7.11 Service mode
The service mode enables you to divide the device into two transmission
areas. You can thus, for example, perform test or service configurations in
the field area of a network while the ongoing operation continues in the
backbone area.
The device determines the two transmission areas via the HIPER-Ring ports:
transmission area 1 only includes the HIPER-Ring ports of the device, while
all other ports belong to transmission area 2. When the service mode is acti-
vated, the device creates a new VLAN in which all the ports of transmission
area 2 are members. You use the redundant supply voltage (see below) to
activate the service mode. You can view the configuration of the newly
created VLAN in the dialogs under Switching/VLAN, but the device does not
allow these entries to be changed, in order to keep the service configuration.
By generating the VLAN, the device
X resets the port VLAN IDs for all the ports of this VLAN to the new VLAN ID
X deactivates GVRP at all ports of this VLAN. The device thus prevents
GVRP from dynamically changing the service mode port settings.
X activates “ingress filtering” at all ports of this VLAN. Thus the device only
transmits packets when the input and output ports belong to this VLAN.