Panasonic FP-E - Page 67

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1.2 Explanation of Relays

1-43

Clearing buffer areas and initial data

Of the areas in which relay numbers are stored, only DT90400 and DT90401 can be

cleared by directly specifying the special data register with the RST instruction.

If DT90400 is specified, all error information in the buffer is cleared, and if DT90401 is

specified, the initial relay number in the buffer area is cleared. Buffers fill up as shown

in the example below.

Example: When the contents of DT90401 are deleted using the RST

instruction

K17

DT90401

Range visible

to user

Range not

visible to user

K18

K19

K20

K21

K499

K500

DT90402

DT90403

DT90404

DT90417

DT90418

DT90419

Storage buffer 1

Storage buffer 2

Storage buffer 3

Storage buffer 4

Storage buffer 17

Storage buffer 18

Storage buffer 19

Storage buffer 20

Storage buffer 21

Storage buffer 499

Storage buffer 500

R DT90401

K18