Sielco Elettronica D1-15A Manual de usuario
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
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
2
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
3
1.4 Physical module description
Figure 1.2 - D1-15A scheme
1 Installation
4
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
1
RX– 1
N.C.
2
RX+ 2
N.C.
3
TX– 3
TX–/RX–
4
TX+ 4
TX+/RX+
[C2] - +24 Vdc supply connector
POWER
1
+24 Vdc
2
FIELD GND
3
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
5
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
1
2
3
+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
6
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.
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