1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

2-6 The ControlLogix SystemSoftwareThe location, ownership and configuration of I/O modules andcontrollers is performed using RSLogix 5000 programming software(version 10). The software is used for creation, testing and debuggingof application logic.When using RSLogix 5000, users must remember the following:• During normal SIL2-certified operation:– we recommend the programming terminal be disconnected.– the keyswich must be set to the RUN position.– the controller key must be removed from the keyswitch.• Authorized personnel may change an application program butonly by using one of the processes described in sectionChanging Your Application Program on page 9-6.CommunicationsControlNet forms the basis for I/O communications on theControlLogix backplane and over the network. It is anindustry-proven network that incorporates 16-bit CRC and a standardCIP network protocol. You must use RSNetWorx for ControlNetsoftware to schedule the network. The correct scheduling of thenetwork is independently verified by the controller after the programis downloaded; the schedule must match the RSLogix 5000 program.The software also provides user-defined fault handing (for example,execute fault routine) in the case of errors.A serial port is available on the controller for download orvisualization only. It uses an industry-proven DF-1 serial link protocolthat has a selection of either 8-bit BCC checksum or 16-bit CRC. Theserial port also uses an industry standard CIP network protocolrunning on the DF-1 link.EtherNet/IP connection is also available for download, monitoring andvisualization.Publication 1756-RM001B-EN-P - October 2003