Hirschmann RS20 User Manual page 16

EtherNet/IP
In the module properties, enter a value of at least 100 ms for the Re-
quest Packet Interval (RPI).
Figure 4: Module properties for the Request Packet Interval (RPI)
Note: If e.g. a management program loads the Switch with SNMP
requests the I/O connection between controler (PLC) and Switch may be
temporarely disrupted. Cause in this case the Switch can further on
forward data packets the installation may also be operative.
The monitoring of the I/O connection to the Switch as failure criterion may
lead to a breakdown of the installation and therefore it is less suitable as
failure criterion.
Example of integration from the Sample Code Library
The Sample Code Library is a Rockwell web site. The goal of this site is
to give users a place to share their best Integrated Architecture
applications, including logic, HMI and drive applications.Look inside the
http://samplecode.rockwellautomation.com web site for the „Catalog
Number" 9701. This is the catalog number of an example for integrating
Hirschmann Switches into RS Logix 5000 Rel. 16, PLC Firmware
Release 16.
16
2.1 Integration in Control System
Industrial Protocols
Release 5.0 04/09