Omron CJ - REFERENCE MANUAL 10-2009 Reference Manual page 608

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3. Instructions

DIM(631) registers the words from TB to TB+LR NR-1 as table number N. Table number N has NR

records and each record is LR words long. The data within this region cannot be changed once the

region has been declared as records.

Records in a registered table are identified by their record numbers, which range from 0 to NR-1.

• Use DIM(631) in combination with SETR(635) (SET RECORD NUMBER) or GETR(636) (GET

RECORD NUMBER) to simplify the calculation of addresses in data tables. Use DIM(631) to divide

data into records and then use SETR(635) to store the first address of the desired record in an Index

search, or compare instructions.

• As an example, if temperatures, pressures, or other set values are stored as records and the records

for various models are combined into a table, it is easy to read the set values for each models for any

particular conditions.

Related instructions

• SETR(635) sets the leading PLC memory address of the specified record number in the specified

Index Register.

• GETR(636) outputs the record number of the record that includes the specified Index Register value

(PLC memory address).

Sample program

When CIO 0.00 is ON in the following example, DIM(631) defines record table number 2 with three 10-

word records. The table begins at D300.

Table number (N)

Number of records

Record length: 10 words

Number of records: 3

Table number 2

CS/CJ/NSJ Series Instructions Reference Manual (W474)

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