The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

D674A906U01 Flow meter

The configuration part of this chapter is related to Advant OCS with Master Software (Advant Controller 410 and Advant Controller 450). For information how to configure the Advant Fieldbus 100 for Advant OCS with MOD 300 Software, see the Advant Controller 460 User’s Guide. Please note that Table 3-5 and Table 3-9 is related to Advant OCS with MOD 300 Software. A station is connected to the Advant Fieldbus 100 through a communication interface. There are different communication interfaces for each type of station. The communication interface performs several functions in the network, such as managing process data and message transfer, the bus master function, and the configuration of cyclic data packages (CDPs). The communication interface is configured from the station. The station provides attributes to install the communication interface, and take it into operation and supervise its performance. This procedure is described in detail in Chapter 5, Maintenance and Fault Tracing.

For monitoring CDP data, a time out mechanism is used. CDPs are sent cyclically on the bus and for each CDP a valid flag is set each time the CDP is received. In case the CDP has not been received during the last four cycles the valid flag is reset.

Double CDP time out 

When using redundant CI522s the partner supervision mechanism needs four cycles of the fastest CDP cycle time used on the bus, to detect that the partner is no longer present. In case the partner is the current primary, within the redundant pair, a switch over is performed. The switch over needs extra time, up to several cycles for fast CDPs, and receiving CDPs would time out and be set non valid in case of a switch over. For switch over handling, without CDPs momentarily being non valid at the switch over, the CDP time out for redundant CI522s is set double that is eight cycles instead of four. NOTE Double time out, used for 1, 2 and 4 ms CDPs, is 40 ms. Double time out is needed when: • CDPs with corresponding DSPs which must not get valid = 0, due to a switch over. • S800 I/O is used. The S800 I/O Modules must not enter OSP state, due to a switch over. The double time out is enabled when: • redundant CI522s are defined. Defining both modules in the CI522 DB element enables double time out. • a single CI522 receives data from a controller with redundant communication interfaces. The double time out is enabled when the EN_DTMO terminal on the CI522 DB element is set to 1. • FCIs subordinated an Advant Controller 450 use, automatically, the same CDP time out as the superior Advant Controller 450. If double time out is not available for a station the receiving cycle times can be doubled compared to the sending cycle times and by this the CDP would not time out.