IP addresses MainIP and IPA of a CPU module must belong to the same logical network.

In a redundant PAC, IP addresses MainIP , MainIP + 1 , IPA, and IPB of the CPU modules must be unique and belong to the same logical network.

The rule applies also to IP addresses IPA and IPB of communication modules of the PAC.

If the following conditions are satisfied for the backplane port of a communication or gateway module that is located in the local rack or drop of a PAC:

• It is enabled.

• It is associated to the embedded interface. That is, if the module has routing capability, its Interface attribute is disabled (no IP forwarding).

Then, the IP addresses of the embedded interface of the module and the CPU module of this PAC must belong to the same logical network.

When the Interface attribute of the backplane port of a communication module is enabled, the IP address of the backplane port (BKP_Interface) must belong to the same logical network as the IP addresses of the embedded interface of the CPU module.

Typically, the IP addresses of two ports that are connected by a physical link must belong to the same logical network.

The type of detection depends on the type of objects that are connected:

• A managed switch and a device: Alert. The link may be valid depending on the configuration of the switch.

• Two devices: Incorrect configuration. The link is not valid. Modify the configuration of either device or delete the link.

The detection is performed only for direct connections between two ports. That is, if a device that does not manage an IP address, such as an unmanaged switch, is connected in between, the logical network discrepancy is not detected.

The the IP addresses of the embedded interfaces of the CRA adapter module and the CPU module of a same PAC must belong to the same logical network.

In a redundant PAC, the IPv4 addresses A and B of the control port of a BMENUA0100 module must belong to the same logical network.

The interface of a scanned device must belong to the same logical network as the interface of the scanner.

An exception exists for BMENOC0301.4 and BMENOC0311.4 modules. They are able to scan devices that communicate by using the Modbus TCP protocol although their interface belongs to a different logical network. ID:3008 is an information and may not be displayed depending on the configuration of the Scanning Device Outside Logical Network attribute.

Verify and, if necessary, correct the configuration in the Communication Mapping View and/or LOGICAL NETWORK VIEW.

Alert

The IP addresses of the Embedded Interface of a CPU module must be different.

If the control port of a BMENUA0100 module is enabled, either IPv4 or IPv6 must be enabled.

When the primary or secondary NTP server IP address format of a BMENUA0100 module is set to IPv6, the control port and the IPv6 embedded interface of the module must be enabled.

When the ETH1 port of a BMENOP0300 module is set to Extended Network , its BKP port must be disabled.

Authorized addresses in the ACCESS CONTROL VIEW cannot be identical to the following IP addresses of M580 CPU modules and BMENOC03•1 communication modules:

• MainIP

• IPA

• IPB