4ć16 – Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL User Manual

Page 91

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Planning Your Application

Chapter 4

4-16

Word Number specifies the word address number in the discrete rack

or block transfer file. Use the “Wrd” column to specify the word number
(0–7 octal) if the address is discrete. This word number is also referred
to as module group number when actual 1771 I/O racks are addressed. If
this is a block transfer address, the range is 0–31 (decimal). The actual
PLC data table addresses will be determined by the block transfer
instruction in the PLC program.

Bit Number—the range is 0–17 octal for discrete (i.e., 0–7 and 10–17),

and 0–15 decimal for block transfer. There are 16 bits per word.

IMPORTANT: Discrete addresses are octal; block transfer addresses are
decimal.

Block Transfer PLC Address

The “Blk Xfer PLC Addr” column documents the actual PLC Data Table
Address. Use this column to document the actual PLC data table address.
The block transfer instructions in the PLC ladder program will determine
where in the PLC data table the block transfer files will be read from and
written to.

You may also use this to record the actual SLC-5/02 Data Table Address in
0–31 Word/0–15 bit format vs. the PanelView 0–3 rack/0–7 word 0–7 and
10–17 bit format. Refer to Appendix A for SLC addressing example.

Preset

Use this column to assign a preset value to an object that has a PLC input
address.

Number of States

This column is for objects that can be assigned a specific number of states.
The “Number of States” column, combined with the “Data Type” column,
is used to calculate the “Number of Bits” an object requires.

Data Types

Use this column for the data type to be assigned to each object’s PLC
addresses. PanelView supports 4 data types: binary, signed integer, BCD,
and bit position. The bit position data type is unique to PanelView.

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