FX1S-30MR-ES/UL MITSUBISHI, FX1S-30MR-ES/UL Datasheet - Page 135

• Manufacturer Part Number: FX1S-30MR-ES/UL
• Description: PLC, 16 IN, 14 RELAY OUT, 110V/2
• Manufacturer: MITSUBISHI

Specifications of FX1S-30MR-ES/UL

• No. Of Analogue Inputs: 16
• No. Of Analogue Outputs: 14
• Ip/nema Rating: IP10
• Approval Bodies: CE, CUL, UL
• External Depth: 49mm
• External Length / Height: 90mm
• External Width: 60mm
• Mounting Type: Panel

5.1.7
FX Series Programmable Controlers
FOR, NEXT
(FNC 08, 09)
Points to note:
a) The FOR instruction operates in a 16 bit mode hence, the value of the operand S may be
b) The NEXT instruction has NO operand.
c) The FOR-NEXT instructions must be programmed as a pair e.g. for every FOR instruction
d) A FOR-NEXT loop operates for its set number of times before the main program is allowed
e) When using FOR-NEXT loops care should be taken not the exceed the PLC’s watchdog
FOR
FNC 08
(Start of a
FOR-NEXT
loop)
NEXT
FNC 09
(End of a
FOR-NEXT
loop)
Mnemonic
within the range of 1 to 32,767. If a number between the range -32,768 and 0 (zero) is
specified it is automatically replaced by the value 1, i.e. the FOR-NEXT loop would execute
once.
there MUST be an associated NEXT instruction. The same applies to the NEXT
instructions, there MUST be an associated FOR instruction. The FOR-NEXT instructions
must also be programmed in the correct order. This means that programming a loop as a
NEXT-FOR (the paired NEXT instruction proceeds the associated FOR instruction) is NOT
allowed.
Inserting an FEND instruction between the FOR-NEXT instructions, i.e. FOR-FEND- NEXT,
is NOT allowed. This would have the same effect as programming a FOR without a NEXT
instruction, followed by the FEND instruction and a loop with a NEXT and no associated
FOR instruction.
to finish the current program scan.
timer setting. The use of the WDT instruction and/or increasing the watchdog timer value is
recommended.
Identifies the start
position and the
number of
repeats for the
loop
Identifies the end
position for the
loop
Function
K, H,
KnX, KnY, KnM, KnS,
T, C, D, V, Z
N/A
Note:
The FOR-NEXT loop can be nested for 5 lev-
els,
i.e. 5 FOR-NEXT loops are programmed within
each other.
Operation:
T h e F O R a n d N E X T i n s t r u c t i o n s a l l o w t h e
specification of an area of program, i.e. the program
enclosed by the instructions, which is to be repeated
S number of times.
Operands
S
Applied Instructions 5
FOR:
3 step
NEXT:
1 step
Program steps
5-13