Sielco Elettronica D1-15A Manuale utente

D1-15A analog module

User’s guide

D1-15A analog module

User’s guide

Version: 11 February 2003

Sielco Elettronica S.r.l.

via Edison 209 20019 Settimo Milanese (MI ) – Italia

http://www.sielcoelettronica.com

info@sielcoelettronica.com

Tel.+39 ( 0 )2 48916252

Fax +39( 0) 2 45329627

Contents

1 Installation.................................................................................................................1

1.1 Packaging check .......................................................................................................... 1

1.2 Dimensions.................................................................................................................. 2

1.3 Fixing method ............................................................................................................. 2

1.4 Physical module description........................................................................................ 3

1.5 Supply.......................................................................................................................... 4

1.6 Inputs........................................................................................................................... 5

1.6.1 Analog inputs for linear sensors................................................................... 5

1.7 Serial communication.................................................................................................. 6

1.7.1 Serial link ..................................................................................................... 6

1.7.2 Communication protocol.............................................................................. 7

1.7.3 Device identification .................................................................................... 7

1.7.4 Serial cable ................................................................................................... 8

1.8 Earth wiring and shielding .......................................................................................... 8

1.8.1 Earth wiring.................................................................................................. 8

1.8.2 Linear sensor wiring..................................................................................... 8

2 Operation...................................................................................................................9

2.1 Application .................................................................................................................. 9

A Gates list................................................................................................................. 10

A.1 Numeric Gates (Holding Registers) ......................................................................... 10

1.1 Packaging check

1 Installation

1.1 Packaging check

Before starting installation, it is necessary to check that the packaging

contents is in compliance with your order. In the packaging there must be:

- # 1 D1-15A series module

- # 1 instruction manual

Check that the model code is in compliance with the ordered code and

verify that the manual edition correspond to the purchase year.

The models are:

D1-15A 6 voltage sensors (from 0 to 10 V) or current sensors (from 0

to 20 mA), individually selectable by jumpers

Analog inputs have the following features:

- Precision : ±0,05 % full scale

- Resolution : 15 bit

- Input impedance (0-20mA): 20 ohm

D1 series modules are covered by 1 year of warranty except for damages

caused by tampering or wrong wiring.

The label on the modules backside certificates the purchase date.

1 Installation

1.2 Dimensions

The D1-15A modules dimensions are shown in figure 1.1.

Figure 1.1 - D1-15A module dimensions

1.3 Fixing method

All D1 series products are provided by a plastic support for fixing on

normalized DIN EN rail and by a shielding serigraphed cover.

On the cover there are schematic mounting indications; in grey areas are

shown the interface circuits that are inside the module, in yellow areas

common use sensors and actuators to be connected externally.

The cover serigraph provides only a general wiring diagram and cannot

show every possible connection cases; for this reason it is necessary to

read carefully this manual before starting module installation.

Do not use excessive pressure on the cover, mounting or dismounting the

module on the rail. Remember to do these operations with supply voltage

switched off or not connected.

1.4 Physical module description

Figure 1.2 - D1-15A scheme

1 Installation

Description

[C1] RS422/485 serial channel connector

[C2] +24 Vdc supply connector

[M1] Analog inputs screws

[M2] Analog sensors inputs screws

DIPSW Protocol and device address selection dipswitch

Led LA Supply led

Led LM Selftest led (normally blinking)

Led TX Transmitted data led

Led RX Received data led

422 485 RS422 or RS485 line selection jumper

[C1] - RS422/485 serial channel connector

RS422

RS485

RX– 1

N.C.

RX+ 2

N.C.

TX– 3

TX–/RX–

TX+ 4

TX+/RX+

[C2] - +24 Vdc supply connector

POWER

+24 Vdc

FIELD GND

MECH. GND

1.5 Supply

The module needs a 24 Vdc (18V < Vdc < 36V) supply by [C2] connector

and absorb a maximum current Icc=70 mA at 24 Vdc.

The negative power supply must be connected to pin #2 of [C2] connector.

After power is turned on, check that LA led is on.

1.6 Inputs

1.6.1 Analog inputs for linear sensors

To D1-15A series modules can be connected 0-10V or 0-20mA/4-20mA

linear sensors. Input channels can be configured individually as voltage or

current using jumpers from J15 to J20 (closed for current inputs).

For a 0-10V output sensor connection connect, for each set of three screws,

positive sensor signal to the screw called IN and the negative sensor signal

to the 0V one, as shown in figure 1.3.

0 -10 V

+24 IN 0V

+ -

Figure 1.3 - 0-10V linear sensor wiring

For a current output sensor connection, it is necessary to distinguish 2

cases:

A) linear sensor supplied by the D1-15A module; supply the sensor

through the screw called +24V and connect the sensor signal to screw

called IN (fig. 1.4A);

B) linear sensor esternally supplied; supply the sensor through an

external power source and connect its negative to the screw called 0V

and connect sensor signal to the screw called IN (fig. 1.4B).

Figure 1.4 - Connection of 4-20 mA linear sensors supplied by the D1-15A

module (case A) or by an external power source (case B)

1 Installation

In case of disturbance, can be useful to use shielded cable and connect the

cable shield to the screw called 0V.

1.7 Serial communication

1.7.1 Serial link

To connect to D1 modules, it is necessary to use a RS422/485 serial

interface that usually are not standard equipment in personal computers.

SIELCO produces C1-25 model, a RS232-RS422/485 serial interface

converter with triple optical isolation that can be connected to PC serial

port (COM) and to D1-15 [C1] connector as shown in table 1.1.

C1-25 D1-15A

# RS-422 RS-422 #

1 GND ←→ GND 2 C2

2 RX– ←→ TX– 3 C1

3 RX+ ←→ TX+ 4 C1

4 TX– ←→ RX– 1 C1

5 TX+ ←→ RX+ 2 C1

6 0 V

7 +24 V

C1-25 D1-15A

# RS-485 RS-485 #

1 GND ←→ GND 2 C2

2 n.c. n.c. 1 C1

3 n.c. n.c. 2 C1

4 TX–/RX– ←→ TX–/RX– 3 C1

5 TX+/RX+ ←→ TX+/RX+ 4 C1

6 0 V

7 +24 V

Table 1.1 - C1-25 - D1-15A (RS 422/485) wiring

D1-15A modules are provided with configurable serial interface

RS422/485, normally configurated as RS485. To change configuration you

have to move the 422/485 jumper placed upper on the printed circuit

board.

Indice

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