When a local slave is configured for the CPU or BMENOC03•1 module of an M580 PAC, the EIP service of this module must be enabled in the Services tab of the PROPERTIES pane.

For the following modules, when the NTP client service is enabled, the NTP polling value must be configured in the range from 1 to 120:

• BMENOC0301

• BMENOC0311

• BMENOC0321

• Modicon M580 CPU

Using a CRA adapter module requires that the following services of the associated CPU module be enabled:

• TFTP

• EIP

• DHCP

When the DHCP server is disabled, client devices that subscribe to it in the DHCP VIEW do not receive IP addresses and network parameters.

Enable the service in the Services tab of the PROPERTIES pane.

When the DHCP server does not support the protocol that is used by a client device, it cannot provide IP addresses and network parameters to the device.

Assign the device to a server that supports the protocol in the DHCP VIEW or change its protocol in the Services tab of the PROPERTIES pane if possible.

When the DHCP client service is enabled and a DHCP server is configured for a device, Identifier cannot be empty.

For some devices, the DHCP identifier must satisfy device-specific format requirements. Default identifiers may not fulfill these requirements; for example, for generic devices.

When the DHCP client service is enabled for a device that is scanned by a scanner, the DHCP server that is configured for this device must be the scanner.

When the control port of a BMENUA0100 module is disabled, the primary and secondary NTP server IP addresses in IPv4 format must belong to the same logical network as the BKP interface of the module.

The same applies when the control port is enabled but the IPv4 interface of the module is disabled.

In a redundant PAC, when the control port and the IPv4 interface of the module are enabled, the NTP server IP addresses in IPv4 format of modules in local racks A and B must belong to the same logical network.

Using a BMENUA0100 module requires that the following services of the associated CPU module be enabled:

• TFTP

• DHCP

Using a BMENUA0100 module requires that Data Dictionary be enabled in the project settings of the associated control project

One or more of the following settings is disabled:

• TFTP

• DHCP

Verify that the configuration of security services is appropriate for your particular application.

When the Update CPU Time functionality is used, enable it only for one communication module of the PAC and verify that the CPU module is not configured as NPT client.

When the IPsec service is enabled, Secure Protocol must be set to IPsec and the Pre-Shared Key attribute cannot be left blank.

When QoS is selected for the L2 Service of a physical port, the QoS service must be enabled for the module.

When the DHCP client service is enabled for a device, the DHCP server name must be configured.

For TeSys devices, the DHCP identifier cannot exceed 16 characters.

When the DHCP client service is enabled and configured to use the MAC address to identify the device, this address must be properly configured.

To use the NTP service with SNTP, at least the IP address of the primary NTP server must be configured.

For a BMENUA0100 module, when the control port is enabled, the IP address that is configured for the primary or secondary NTP server must be different from the static IP address of the control port (Embedded Interface ).

This applies to IPv4 and IPv6 addresses.

For a redundant PAC, applies to any combination of roles A and B.

To use the NTP service with NTP version 4, the IP address of the preferred NTP server must be configured.