Mitsubishi FX1N Series Programming Manual

FX Series Programmable Controlers Applied Instructions 5
5-87
5.7.2 SER (FNC 61)
Operation:
The SER instruction searches a defined data stack
from head address S1, with a stack length n. The
data searched for is specified in parameter S2 and
the results of the search are stored at destination
device D for 5 consecutive devices.
Points to note:
a) Normal rules of algebra are used to determine the largest and smallest values, i.e. -30 is
smaller than 6 etc.
b) If no occurrence of the searched data can be found then destination devices D, D+1 and
D+2 will equal 0 (zero).
c) When using data register s as the destination device D please remember that 16 bit
operation will occupy 5 consecutive, data registers but 32 bit operation will occupy 10 data
registers in pairs forming 5 double words.
d) When multiple bit devices are used to store the result (regardless of 16 or 32 bit operation),
only the specified size of group is written to for 5 consecutive occurrences, i.e. K1Y0 would
occupy 20 bit devices from Y0 (K1 = 4 bit devices and there will be 5 groups for the 5
results). As the maximum data stack is 256 (0 to 255) entries long, the optimum group of bit
devices required is K2, i.e. 8 bit devices.
Mnemonic Function
Operands
Program steps
S1 S2 D n
SER
FNC 61
(Search a
Data Stack)
Generates a list
of statistics
about a single
data value
located/foundin
adatastack
KnX, KnY,
KnM, KnS,
T, C , D
KnX, KnY,
KnM, KnS,
T, C, D
V, Z
K, H
KnY, KnM,
KnS
T, C, D
Note: 5
consecutive
devices
are used
K,H, D
)
Note:
n= 1~256 for 16
bit operation
n= 1~128 for
32 bit
operation
SER, SERP:
9 steps
DSER,
DSERP:
17 steps
Destination
device
Device description
D Total number of occurrences of the searched value S2 (0 if no occurrences are found)
D+1 The position (within the searched data stack) of the first occurrence of the searched value S
2
D+2 The position (within the searched data stack) of the last occurrence of the searched value S2
D+3
The position (within the searched data stack) of the smallest value found in the data
stack (last occurrence is returned if there are multiple occurrences of the same value)
D+4
The position (within the searched data stack) of the largest value found in the data stack
(last occurrence is returned if there are multiple occurrences of the same value)
FX 1S
FX 1N FX 2N
FX 2NC
PULSE-P 16 BIT OPERATION 32 BIT OPERATION
X72
SER D 50 K 20
[ S1 ] [ D ]
D 35
K100
n[ S2 ]

Mitsubishi FX1N Series Specifications

General

Brand	Mitsubishi
Model	FX1N Series
Category	Controller
Language	English