Mitsubishi FX3U Series Programming Manual page 161

FX /FX Series Programmable Controllers
3U 3UC
Programming Manual - Basic & Applied Instruction Edition
3. Indexing
Devices used in OUT instruction can be indexed with index registers (V and Z).
(State relays (S), special auxiliary relays (M), 32-bit counters (C), and "D .b" cannot be indexed.)
Circuit program
X000
4. Bit specification of data register (D)
A bit in data register (D) can be specified as a device used in OUT instruction.
Circuit program
X000
Caution
When a special internal relay (M), timer or counter is used, program steps increase as described in "Setting
range of timers and counters" on the previous page.
Errors
• When an I/O number used in OUT instruction does not exist due to indexing, M8316 (Non-existing I/O
specification error) turns ON.
• When the device number of a device (M, T or C) other than I/O used in OUT instruction does not exist due
to indexing, an operation error (error code: 6706) occurs.
List program
0000 LD
0001 OUT
Y000Z0
List program
0000 LD X000
0001 OUT D0.3
D0.3
The index registers V0 to V7 and Z0 to Z7 are
available for indexing.
When a used device is an input (X) or output
(Y), the value of an index register (V or Z) is
X000
converted into an octal number, and then
Y000Z0
added.
Example:When the value of Z0 is "20", Y024
turns ON or OFF.
When specifying a bit in data register, input "."
after a data register (D) number, and then
input a bit number (0 to F) consecutively.
Only 16-bit data registers are available.
Specify a bit number as "0, 1, 2, ... 9, A, B, ...
F" from the least significant bit.
Example: In the example shown on the left,
the bit 3 of D0 turns ON or OFF
when X000 turns ON or OFF.
7 Basic Instruction
7.2 OUT
1
2
3
4
5
6
7
8
9
10
159