- Index
- Preface
- Overview
- Using the Command-Line Interface
- Configuring Switch Alarms
- Assigning the Switch IP Address and Default Gateway
- Configuring Cisco IOS Configuration Engine
- Clustering Switches
- Administering the Switch
- Configuring PTP
- Configuring PROFINET
- Configuring SDM Templates
- Configuring Switch-Based Authentication
- Configuring IEEE 802.1x Port-Based Authentication
- Configuring Web-Based Authentication
- Configuring Interface Characteristics
- Configuring Auto Smartports Macros
- Configuring VLANs
- Configuring VTP
- Configuring Voice VLAN
- Configuring Private VLANs
- Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling
- Configuring STP
- Configuring MSTP
- Configuring Optional Spanning-Tree Features
- Configuring Resilient Ethernet Protocol
- Configuring Flex Links and the MAC Address-Table Move Update Feature
- Configuring DHCP Features and IP Source Guard
- Configuring Dynamic ARP Inspection
- Configuring IGMP Snooping and MVR
- Configuring Port-Based Traffic Control
- Configuring LLDP, LLDP-MED, and Wired Location Service
- Configuring CDP
- Configuring UDLD
- Configuring SPAN and RSPAN
- Configuring RMON
- Configuring System Message Logging
- Configuring SNMP
- Configuring Embedded Event Manager
- Configuring Network Security with ACLs
- Configuring QoS
- Configuring EtherChannels and Link-State Tracking
- Configuring IP Unicast Routing
- Configuring IPv6 Unicast Routing
- Configuring IPv6 MLD Snooping
- Configuring IPv6 ACLs
- Configuring HSRP
- Configuring Cisco IOS IP SLAs Operations
- Configuring Enhanced Object Tracking
- Configuring Web Cache Services By Using WCCP
- Configuring IP Multicast Routing
- Configuring MSDP
- Configuring Fallback Bridging
- Troubleshooting
- Supported MIBs
- Working with the Cisco IOS File System, Configuration Files, and Software Images
- Unsupported Commands in Cisco IOS Release 12.2(52)SE
Configuring PROFINET
This chapter describes how to configure the PROFINET feature on the Cisco IE 3000 switch.
•
Displaying the PROFINET Configuration
Understanding PROFINET
PROFINET is the PROFIBUS International (PI) open Industrial Ethernet Standard that uses TCP/IP and IT standards for automation control. PROFINET is particularly useful for industrial automation systems and process control networks, in which motion control and precision control of instrumentation and test equipment are important. It emphasizes data exchange and defines communication paths to meet speed requirements. PROFINET communication is scalable on three levels:
•Normal non-real-time communication uses TCP/IP and enables bus cycle times of approximately 100 ms.
•Real-time communication enables cycle times of approximately 10 ms.
•Isochronous real-time communication enables cycle times of approximately 1 ms.
Note The switch does not support isochronous real-time communication channels.
PROFINET IO is a modular communication framework for distributed automation applications. PROFINET IO uses cyclic data transfer to exchange data, alarms, and diagnostic information with programmable controllers, input/output (I/O) devices, and other automation controllers (for example, motion controllers).
PROFINET IO recognizes three classes of devices:
•IO devices
•IO controllers
•IO supervisors
PROFINET Device Roles
Figure 9-1 illustrates the roles of the three types of devices.
Figure 9-1 PROFINET Device Roles
An IO controller is a programmable logic controller (PLC) that controls IO devices and exchanges data such as configuration, alarms, and IO data through an automation program. It and the IO supervisor exchange diagnostic information. The IO controller shares configuration and input/output information with the IO device and receives alarms from the IO device.
PROFINET is designed to be the sole or primary management system platform. Because the IO controller detects the switch with the Discovery and Configuration Protocol (DCP), and sets the device name and IP address, basic configuration requires no Cisco IOS commands. For advanced configurations (for example, QoS, DHCP, and similar features) you must use Cisco IOS commands on the switch because these features cannot be configured by using PROFINET.
An IO supervisor is an engineering station, such as a human machine interface (HMI) or PC, used for commissioning, monitoring, and diagnostic analysis. The IO supervisor exchanges diagnostic, status, control, and parameter information with the IO device.
An IO device is a distributed input/output device such as a sensor, an actuator or a motion controller.
Note The switch acts as an IO device, providing a PROFINET management connection to the IO controllers.
In a PROFINET IO system, all the IO devices communicate over an Ethernet communication network to meet the automation industry requirement for bus cycle times of less than 100 ms. The network uses switches and full-duplex data exchange to avoid data collisions.
PROFINET Device Data Exchange
After PROFINET uses DCP to discover devices, including the switch, they establish application relationships (ARs) and communication relationships (CRs). After a connection is established and information about device parameters is exchanged, input and output data is exchanged. The switch uses non-real-time CRs to exchange the data attributes listed in Table 9-1 and Table 9-2.
PROFINET devices are integrated by using a general station description (GSD) file that contains the data for engineering and data exchange between the IO controller, the IO supervisor, and the IO devices, including the switch. Each PROFINET IO field device must have an associated GSD file that describes the properties of the device and contains all this information required for configuration:
•Device identification information (device ID, vendor ID and name, product family, number of ports)
•Number and types of pluggable modules
•The Cisco IE 3000 8-port expander modules are not hot-swappable. Turn off the switch before connecting or disconnecting expander modules.
•Error text for diagnostic information
•Communication parameters for IO devices, including the minimum cycle time, the reduction ratio, and the watch dog time
Note Although the Cisco IE 3000 switch has a default reduction ratio of 128 ms, we recommend a reduction ratio of 256 ms or 512 ms to reduce the load on the switch CPU when the switch uses a complex configuration.
•Configuration data for the IO device modules, including speed, duplex, VLAN, port security information, alarms, and broadcast-rate-limiting thresholds
•Parameters configured for IO device modules for the attributes listed in Table 9-2
The GSD file is on the switch, but the IO supervisor uses this file.
Note You must use the GSD file that is associated with the Cisco IOS release on the switch to manage your PROFINET network. Both the IO supervisor and the Cisco IOS software alert you to a mismatch between the GSD file and the switch Cisco IOS software version.
Configuring PROFINET
You can use either the PROFINET software on the IO supervisor or the Cisco IOS software for basic switch configuration.
Default Configuration
Beginning with Cisco IOS software release 12.2(52)SE, PROFINET is enabled by default on all the base switch module and expansion-unit Ethernet ports. If PROFINET has been disabled, follow the instructions in the "Enabling PROFINET" section.
Enabling PROFINET
Beginning in privileged EXEC mode, follow these steps:
|
|
|
|
|---|---|---|
Step 1 |
configure terminal |
Enter global configuration mode. |
Step 2 |
profinet |
Enable PROFINET on the switch. |
Step 3 |
profinet id line |
(Optional) Set the PROFINET device identifier (ID) by using the Cisco IOS software. The maximum length is 240 characters. The only special characters allowed are the period (.) and hyphen (-), and they are allowed only in specific positions within the ID string. It can have multiple labels within the string. Each label can be from 1 to 63 characters, and labels must be separated by a period (.). The final character in the string must not be zero (0). For more details about configuring the PROFINET ID, see the PROFINET specification, document number TC2-06-0007a, file name PN-AL-protocol_2722_V22_Oct07, available from PROFIBUS. |
Step 4 |
profinet vlan vlan id |
(Optional) Change the VLAN number. The default VLAN number is 1. The VLAN ID range is 1-4094. |
Step 5 |
end |
Return to privileged EXEC mode. |
Step 6 |
show running-config |
Verify your entries. |
Step 7 |
copy running-config startup-config |
(Optional) Save your entries in the configuration file. |
To disable PROFINET on the switch, use the no profinet global configuration command.
Displaying the PROFINET Configuration
Use the show profinet privileged EXEC command with one of the keywords shown in Table 9-3.
Troubleshooting PROFINET
The PLC has LEDs that turn red for alarms, and the IO supervisor software reflects those alarms.
To troubleshoot PROFINET use the debug profinet privileged EXEC command with the keywords shown in Table 9-4Table 9-4. Be aware that the output of a debug command might cause a serial link to fail. You should use these commands only under the guidance of a Cisco Technical Support engineer. When you use this command, use Telnet to access the Cisco IOS command-line interface (CLI) by using Ethernet rather than a serial port.
Feedback