Indexing Of Devices - Mitsubishi FX3U Series Programming Manual

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Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

4.10.3 Indexing of devices

Available devices and the contents of indexing are as described below:

Decimal devices/numeric values: M, S, T, C, D, R, KnM, KnS, P and K

For example, when "V0 = K5" is specified and "D20V0" is executed, an instruction is executed for the device

number D25 (D20 + 5).

Constants can be indexed also. When "K30V0" is specified, an instruction is executed for a decimal value

K35 (30 + 5).

Octal devices: X, Y, KnX and KnY

For example, when "Z1 = K8" is specified and "X0Z1" is executed, an instruction is executed for the device

number X10 (X0 + 8: addition of octal value). In the indexing for a device whose device number is handled in

octal, a numeric value converted into octal is added for the contents of V and Z also.

Accordingly, note that "X0Z1" indicates that X12 is specified, and X10 is not specified when "Z1 = K10" is

Hexadecimal numeric values: H

For example, when "V5 = K30" is specified and a constant "H30V5" is specified, it is handled as H4E (30H +

K30). When "V5 = H30" is specified and a constant "H30V5" is specified, it is handled as H60 (30H + 30H).

→ For the indexing use method and cautions, refer to Section 5.7.

4 Devices in Detail

4.10 Index Register [V and Z]

Fx3uc series Melsec-f