ABB 800xA Operation

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ABB 800xA Operation Manual pdf 118 page image

Sequencer Display Section 5 TLL Displays118 3BUR002418-600 ALL_FILE template allows a base 10 integer, from 0 to 4,294,967,295 (32 bits);however, it will be displayed as a signed 32 bit number (-1).Sequencer DisplayThe Sequencer Display, Figure 55, has multiple pages, with one page for each stepin the sequencer. This display is accessed by selecting a Ladder Logic Device objectand then selecting MOD300 TLL Sequencer from the context menu and then aspecific sequence from the Sequence List.A sequencer is a series of up to 128 steps. Each step is a list of as many as 32 I/Opoints. The I/O points listed in a sequencer step are manipulated in one way oranother by sequencer program instructions. One type of sequencer instructioncauses the values of input points to be read into a file. Another instruction causes thevalues in a file to be sent to output points.Figure 55. Sequencer Display