Справочник Пользователя для Mitsubishi Electronics FX0

FX Series Programmable Controllers

4-3

Device Mnemonic: M

Purpose: Internal programmable controller status flag

Alias: Auxiliary (coil/ relay/ contact/ flag)

M (coil/ relay/ contact /flag)
M (bit) device

Available forms: NO (

) and NC contacts and output coils (

)

(see example device usage for references)

Devices numbered in: Decimal, i.e. M0 to M9, M10 to M19

Further uses: General stable state auxiliary relays - see page 4-3

Battery backed/ latched auxiliary relays - see page 4-4
Special diagnostic auxiliary relays - see page 4-5

•

A number of auxiliary relays are used in the PLC. The coils of these relays are driven by
device contacts in the PLC in the same manner that the output relays are driven in the
program.
All auxiliary relays have a number of electronic NO and NC contacts which can be used by
the PLC as required. Note that these contacts cannot directly drive an external load. Only
output relays can be used to do this. 

•

For more information about device availability for individual PLC’s, please see chapter 8.
For device availability when using an FX fitted with an FX2-40AW/AP please see page 9-6.

PLC

 FX0(S)

FX0N

FX

FX(2C)

FX2N(C)

General auxil-
iary
relays

496
(M0 - 495)

384

(M0 - 383)

500
(M0 - 499)

500

(M0 - 499)

500

(M0 - 499)

Battery backed/
latched relays

16
(M496 - 511)

128

(M384 - 511)

524
(M500 - 
1023)

1036

(M500 - 

1535)

2572

(M500 - 

3071)

Total available

512

512

1024

1536

3072

FX

0(S)

FX

0N

FX FX

(2C)

FX

2N(C)

X0

X1

1

M507

2

M507