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3ć27 – Rockwell Automation 1772-LP3 PLC - 2/30 Programmable Controller Programming and Operations Manual User Manual

Page 54

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Data Table

Chapter 3

3Ć27

This form can be used for any one of the three Sequencer instructions to
log the data associated with each step.

This information added to the heading of the assignment sheet should be
identical to the information displayed in the data monitor mode heading
and in the ladder diagram mode instruction block of the sequencer
instruction. The mask row is used to log mask data, if required. The
remaining rows are for logging the data of each step. The data can be
logged in binary or in hex. The step numbers should be written in the
left-hand blank column. The from-to addresses at the bottom of the sheet
are the starting and ending file addresses for each column of the sequencer
tables.

For example, Figure 3.12 shows a completed portion of a sequencer table
bit assignment sheet for an 8-step, 3-word-wide sequencer input
instruction. The mask and steps 1 and 2 have been completed in binary.
Steps 3-8 have been completed in hex for the sake of illustration. The
starting and ending word addresses of each column of the sequencer table,
400 to 407, 410 to 417, and 420 to 427, respectively, have been entered at
the bottom of each column.

3.4.5
Sequencer Table Bit
Assignments