Справочник Пользователя для Mitsubishi Electronics FX2NC

8-1

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Operation control method

Cyclic operation by stored program

I/O control method

Batch processing method (when 

END instruction is executed)

I/O refresh instruction is available

Operation processing time

Basic instructions: 1.6 to 3.6 

µ

s

Applied instructions: several 10’s to 100 

µ

s

Programming language

Relay symbolic language + step 

ladder

Step ladder can be used to pro-

duce an SFC style program

Program capacity

800 steps

Provided by built in EEPROM 

memory

Number of instructions

Basic sequence instructions: 20

Step ladder instructions: 2

Applied instructions: 35

A Maximum 50 applied instructions 

are available including all varia-

tions

I/O configuration

Max total I/O set by Main Processing Unit

Auxiliary

relay

(M coils)

General

512 points

M0 to M511

Latched

16 points (subset)

 M496 to M511

Special

56 points

From the range M8000 to M8255

State relays

(S coils)

General

64 points

S0 to S63

Initial

10 points (subset)

S0 to S9

Timers (T)

100 msec

Range: 0 to 3,276.7 sec

56 points

T0 to T55

10 msec

 Range: 0 to 327.67 sec

24 points

T32 to T55 when special M coil 

M8028 is driven ON

Counters (C)

General

Range: 1 to 32,767 counts

16 points

C0 to C13

Type: 16 bit up counter

Latched

2 points(subset)

C14 to C15

Type: 16 bit up counter

High speed

counters (C)

1 phase

Range: -2,147,483,648 to 
+2,147,483,647 counts
FX0: Select upto four 1 phase 
counters with a combined counting 
frequency of 5kHz or less.
Alternatively select one 2 phase or 
A/B phase counter with a counting 
frequency of 2kHz or less.
FX0S: When multiple 1-phase 
counters are used the sum of the 
frequencies must be equal or less 
than 14kHz. Only 1, 2 phase high 
speed counter may be used at any 
one time. When 2 phase counters 
are in use the maximum counted 
speeds must be equal or less than 
14kHz, calculated as (2 ph counter 
speed 5 number of counted edges) 
+ 1 ph counter speeds.

C235 to C238

(note C235 is latched)

4 points

1 phase

c/w start

stop input

C241(latched), C242 and C244 

(latched) 3 points

2 phase

C246, C247 and C249 (all latched) 

3 points

A/B phase

C251, C252 and C254 (all latched) 

3 points

FX

0(S)

FX

0N

FX FX

(2C)

FX

2N(C)

FX Series Programmable Controllers