Mitsubishi FX3U-232-BD User Manual page 214

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FX Series PLC User's Manual - Data Communication Edition

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2. Word devices

TN000 to TN063

D0000 to D0255

D8000 to D8255

The WT and QT commands do not support 32-bit counters (C200 to C255).

1) When using bit devices in a command requiring specification in 1-word units, make sure that the head

device number is a multiple of "8".

2) Special auxiliary relays and special data registers are classified into ones for read only, write only and

ones for system only.

If data is written to any range in which writing is not allowed, an error may occur in the PLC.

For details on special auxiliary relays and special data registers, refer to the manual of the PLC.

(in the built-in RAM and memory cassette) when users set file registers (D).

mounted memory cassette.

Device number range (character)

TN000 to TN255

CN000 to CN255

D8000 to D8255

PLCs, extension registers (R) cannot access extension file registers (ER) in a

D0000 to D7999

PLCs, the PLCs cannot access the program area

2.2 Link Specifications

Available commands

2 Specifications

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