TCP/IP Properties
Original instructions
About us
Introduction
The read-only information on the TCP/IP page monitors the IP parameters that were configured in Control Expert.
Use the channel Configuration tab of the module to perform these tasks:
Access the Configuration Tab
Access the channel Configuration tab for the Ethernet communications module:
Step
Action
1
In the Project Browser, double-click Project → Configuration → PLC bus.
2
In the PLC Bus dialog box, right-click the Ethernet communication module and click Open.
Result: The configuration window for the module is displayed.
3
Select Channel 0 to display the Configuration tab.
Selecting a Configuration Mode
In the IP Address configuration part of the Configuration tab, select one of these modes to determine how the communication module obtains its IP address at startup:
Mode
Description
Applies to ...
Standalone
Hot Standby
Static
The module uses the scanner IP address, gateway IP address, and sub-network mask configured in this page.
✔
✔
BOOTP
The module uses an IP address assigned by a BOOTP server.
✔
–
DHCP
The module uses an IP address assigned by a DHCP server.
✔
–
✔ : Supported
– : Not supported
NOTE: For BMENOC03•1, BMENOC03•1.2, and BMENOC03•1.3 modules, only the Static mode is available.
Configure the parameters that are available in each configuration mode:
Mode
IP Parameter
Description
Static
Main IP Address
This 32-bit identifier consists of a network address and a host address that are assigned to a device that is connected to a TCP/IP Internet network through the Internet Protocol (IP).
Subnet Mask
This 32-bit value hides (or masks) the host portion of the IP address to set the network address of the module.
Gateway
When necessary, this device address serves as a gateway to other parts of the network.
Check box: Automatic Device(s) subnet update (Only for modules BMENOC03•1.4).
By default, the subnet mask of all Modbus devices behind a BMENOC03•1.4 module is automatically updated if the NOC subnet is changed (for example during commissioning or maintenance). When unchecked, all the devices subnets are keeping unchanged.
BOOTP
Main IP Address
This 32-bit identifier consists of a network address and a host address that are assigned to a device that is connected to a TCP/IP Internet network through the Internet Protocol (IP).
NOTE: When the Ethernet communications module cannot reach a BOOTP server, use the default IP address in this format: 10.10.MAC5.MAC6
The module uses the default address until it obtains valid IP parameters from the server.
Update IP configuration
After the module obtains valid IP parameters from the requested server, press this button to populate the Main IP Address field with the new parameters.
BOOTP Server IP address
Enter the address of a BOOTP server in the local subnet or a remote subnet (through a DHCP relay).
DHCP
Main IP Address
This 32-bit identifier consists of a network address and a host address that are assigned to a device that is connected to a TCP/IP Internet network through the Internet Protocol (IP).
NOTE: When the Ethernet communications module cannot reach a DHCP server, use the default IP address in this format: 10.10.MAC5.MAC6
The module uses the default address until it obtains valid IP parameters from the server.
Update IP configuration
After the module obtains valid IP parameters from the requested server, press this button to populate the Main IP Address field with the new parameters.
DHCP Server IP address
Enter the address of a DHCP server in the local subnet or a remote subnet (through a DHCP relay).
Backup DHCP Server IP address
Enter the address of a backup DHCP server (if available).
DHCP Identifier
Auto-generated field in the format 8M_#_modulename, where:
  • 8M: a constant
  • #: slot number, either one or two digits long.
  • modulename: BMENOC03x1
You can edit the auto-generated identifier (16-character maximum).
Hot Standby Considerations
In a Hot Standby system, distributed equipment uses the Main IP address setting of the CPU to communicate over an Ethernet network with the primary CPU.
NOTE: Configure the Main IP address in the IP Config tab for the M580 CPU.
On switchover, the Main IP address setting is automatically transferred from the former primary CPU to the former standby CPU (now the new primary CPU). Similarly, on switchover, the Main IP address + 1 setting is automatically transferred from the former standby CPU to the new standby CPU.
In this way, the configured links between the distributed equipment and the primary CPU do not require editing in the event of a switchover.
Default Address Configurations and Software Default Address
The communication module uses a default address when it is not configured or when a duplicate IP address is detected. The default address is based on the MAC address of the module and makes it possible for several Schneider Electric devices to use their default network configuration on the same network. The default address is 10.10.X.X, where X.X is the last numbers of module MAC address. With Control Expert, adding a module in the PLC configuration generates a software default IP configuration with the following rules:
Parameter
Software Default Address
Main IP address
The software default IP address starts with 172.168.
Subnetwork mask
The software default subnet mask is 255.255.0.0.
Gateway address
The software default gateway address is not identical to the software default IP address.
The Ethernet communication module provides these basic services when it uses the default IP address (and the services are enabled in the configuration):
Duplicate Address Checking
NOTICE
UNEXPECTED EQUIPMENT BEHAVIOR
Confirm that each module has a unique IP address. Duplicate IP addresses can cause unpredictable module/network behavior.
Failure to follow these instructions can result in equipment damage.
The module checks for duplicate IP addresses before it applies the configured IP address:
Response
Meaning
yes
Another network device is using the proposed IP address.
The module does not use the proposed IP address. It uses the default IP address.
no
The module uses the proposed IP address (along with the associated network parameters).
To improve performance during a network power-up operation, power up the network switches before you power up any system component (Ethernet communications module, Modicon M580 rack, PACs, etc.).
NOTE: When the entire network powers up at once, some switches may be slower to complete the process. The relatively slow switch response can cause some ARP messages to be dropped, resulting in an incomplete detection of duplicate IP addresses.