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min. 60

55

min. 100

min. 80

Mounting position (mm)

Ascon Tecnologic S.r.l.

via Indipendenza 56,  
27029 - Vigevano (PV)
Tel.: +39 0381 69871,  
Fax: +39 0381 698730

www.ascontecnologic.com

Installation
Manual

Contents

- General description

- Accessories

- Installation

- Electrical connections

- Electric safety

1

    Model identification label (on the back side of the module);

2

    DIN RAIL 35 x 7.5 (EN50022);

3

  

X1 

one 2 poles plug to connect the power supply and 

X2...

 

X3

  two 3 poles plugs to connect the DO1...DO2 SPDT output relays or  

Vdc/Vac SSR or 12 Vdc to drive external SSR;

4

  

X4...

 

X6 

two 5 poles plugs to connect the DI1... DI12 Digital Inputs;

5

  Status/diagnostic LEDs: 

L1

 (red, CAN ERR)

 

USB

 (green, USB activity/CAN Run), 

COM2

 (green, COM2 traffic), 

COM1

 (green, COM1 traffic), 

MSG

 (message),  

RUN

 (program status run/stop), 

PWR

 (power supply ON);

6

  - Reset button;

7

  

X17 

USB type A receptacle to connect a flash drive;

8

  

X10 

5 poles plug to connect the COM1 service serial port (RS232/RS485);

9

  

X11 

3 poles plug to connect the COM2 serial port (RS485);

10

  

X9 

2 poles plug output power supply (15Vdc);

11

  

X7...

 

X8 

6... 7 poles plugs to connect DO3... D10 SPST output relays;

General description

Accessories

Installation

24 VDC Power supply

APS2ALEDR12024 (120 W, 5.0 A), 
APS2ALNDR75-24 (75 W, 3.2 A),
APS2ALMDR20-24 (20 W, 1.0 A)

1

 

Open the 2 spring slides on the lower 

part of the CPU, 

clip the upper part of 

the module to the rail;

2

  Rotate the module downwards, then 

close the 2 spring slides

;

3

  Switch OFF the Power Supply

 

Lower the spring slide by inserting a  

flat-blade screwdriver as indicated

;

4

  Turn and lift the module upwards to 

remove the CPU from the DIN rail.

Dimensions (mm)

Mounting the module

-  Mount the module vertically;

-  In order to help the ventilation flow of 

air, respect the distances between 

modules and walls or other modules.

Mounting position

Mounting/removing the modules  

on/from the DIN rail

Removing the module

Operating conditions

Integrated system,
CPU module with  
on-board I/O
mod. 

M81

mod.

 

M81

M . I .  M 8 1 - 0 4 / 1 7 . 0 5
C o d .   I S T R - M M 8 1 E N G 0 4

Rail mounting 

DIN 35 x 7.5

(EN 50022)

110

175

60

60

Environmental condition

B

Suggestion

Operating 
conditions

T

Temperature 

0...+50°C

%Rh

Umidity: 

5... 95% Rh  

non condensing

Special  
conditions

T

Temperature 

> 50°C

Use forced  
ventilation

%Rh

> 95% RH

Warm up

P

Conducting  
atmosphere

Use filter

Forbidden 

conditions

C

Corrosive  
atmosphere

E

Explosive 

atmosphere

1

2

3

4

3

4

14

15

11

12
13

5

6

7

9

10

8

12

  

X14...

 

X15 

5 poles plugs to connect AI5... AI12 NTC/PT1000 Analogue Inputs;

13

  

X16 

RJ45 plug to connect the Ethernet TCP/IP network for programming purposes 

or for the MODBUS through the TCP port;

14

  

X13 

6 poles plug to connect AO1... AO4 Analogue Outputs;

15

  

X12 

7 poles plug to connect AI1... AI4 Analogue Inputs.

Note:

  The green terminals on the CPU are male connectors (pitch 5 mm), the 

corresponding female plugs are snap-on connectors with screw or spring 

terminals for connecting the wires.

E

Screw Terminal Blocks

APS2/M81-kITSCREW

Disposal

The appliance (or the 

product) must be 

disposed of separately in 

compliance with the local 

standards in force on 

waste disposal.

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