The CP 1604 can be operated as a PROFINET IO controller and/or PROFINET IO device that stores the process image (input and output data) in the memory area on the CP. With simultaneous controller and device mode, only the controller or the device can be operated in IRT mode. High-performance data transfer to and from the IO devices is performed autonomously by the CP 1604.

Real-time

Support of real-time properties of PROFINET for RT and IRT. The real-time properties of the CP 1604 ensure extremely short cycle times with highly accurate clock-pulse rates.

Switching

According to the industry requirements, the 4-port real-time switch additionally permits the configuration of line topologies with spur lines and makes external switch components unnecessary.

The switch function in RT mode is also available when the PC is turned off thanks to the possibility of independently supplying an external voltage (via "Power Supply for CP 1604").

Energy savings

Thanks to its support of PROFIenergy, CP 1604 allows for the implementation of various energy-saving states during idle times. By connecting an external power supply, the CP 1604 can continue to communicate with the controller as a PROFIenergy device, even while the PC is switched off. By connecting an external hardware circuit, it is then possible to reactivate the PC via PROFIenergy mechanisms (6GK1160-4AA01 only).

Software packages

DK-16xx PN IO development kit;
driver and IO-Base software for CP 1604 as PROFINET IO-Controller and IO-Device under Linux in source code for transfer to any PC-based operating systems with IO-Base interface for:

• PROFINET communication:
  • PROFINET IO controller:
    Connection of field devices to Industrial Ethernet with PROFINET
  • PROFINET IO device:
    Link-up with a PROFINET IO controller through real-time communication according to the PROFINET standard
• Access in isochronous mode to real-time data for PROFINET over IRT;
  extremely short cycle times with highly accurate clock-pulse rates;
  jitter accuracy, isochronous mode, and cycle time enable high-performance motion control applications.
• Direct memory access to the process data;
  the process data of the IO-Devices are always consistent. The IO programming interface provides the PC programmer with function calls for data transfer.
• The design of the interface not only permits fast access as a PROFINET IO controller, but also easy transfer to other operating system environments (e.g. VXWorks, QNX, RMOS, RTX).
• The IO-Base interface for the PROFINET IO controller of the CP 1604 is compatible with the interface for SOFTNET PN IO
• The CP 1604 is functionally compatible to the CP 1616

Using the Development Kit DK-16xx PN IO, the CP 1604 communications processor can be integrated into any PC-based operating system environment. The Development Kit contains the driver and IO-Base source code required for this including the transfer instructions and also the example code which executes with SUSE Linux.

User interfaces

Programming interface via C library

• For applications that want to use the PROFINET IO-Controller or IO-Device functionality directly over C/C++, the IO-Base interface can be used. This interface is of a similar design to the DP Base interface of PROFIBUS modules CP 5613 and CP 5614. It is therefore possible to port existing PROFIBUS DP master applications to PROFINET IO-Controller applications.

Diagnostics

Extensive diagnostic options are available via STEP 7 or SNMP, including:

• General diagnostics functions
• Connection diagnostics
• Diagnostics of the assigned PROFINET field devices
• Integration in network management systems through the support of SNMP

Configuration

Configuration of the CP 1604 is performed with STEP 7/NCM PC, V5.3 SP2 and higher. NCM PC is included with the module.