S2Tech DS EUROPE AN-401plus Series User manual

DS EUROPE by S2Tech
TRANSDUCERS AND INDUSTRIAL ELECTRONICS
MICROPROCESSOR
PANEL METER
SERIE AN-401plus
Version 2 Rev. 12
25/10/2012
TECHNICAL
MANUAL

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DOCUMENT HYSTORY
Hardware version
Software version
Manual version
MA 401
V.02.05
V 2.0 R1
MA 401
V.02.05
V 2.0 R2
PIT MA V0
V.02.07
V 2.5
PIT MA V0
V.02.07
V 2.6
PIT MA V0
V.02.08
V 2.8
PIT MA V0
V.02.08
V 2.9
PIT MA V0
V.02.08
V 2.10
PIT MA V0
V.02.08
V 2.11
PIT MA V0
V.02.08
V 2.12
Changes between V 2.11 and V 2.12 versions:
Page 7, instrument’s power supply (2.2.1)
Page 9, electrical connection table (2.7)
Page 13, RS485 connections (2.15), with serial connection default table
Page 21, DAC settings flow chart
Page 22, Modbus baud rate
Z:\Manuali\Pitagora (AN401)\Pitagora UK\AN401plus_uk_V2r12_251012.doc
Notice: The information in this manual is subject to change without notice. S2Tech shall not
be liable for technical or editorial errors or omissions contained herein, nor for incidental or
consequential damages resulting from the furnishing, performance, or use of this material. This
manual contains information protected by copyright.
No part of this manual may be photocopied, or reproduced in any form, or translated without prior
written consent from S2Tech.

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FOREWORD
1. This manual is integral part of the shipment and it is supplied with the Product even if not listed in
the invoice.
This manual can also be sent during purchase negotiation on Buyer’s request provided that the
Buyer states end application of the Product.
Except as expressly request by the Buyer, only one copy of this manual may be attached to
shipments consisting of more than one unit of the Product.
Additional or updated copies of this document may be found on our web site at the following
address: www.s2tech.it
2. The Products, which are the subjects of this manual, are designed and manufactured for general use;
therefore, being not possible to specify limits of use for all applications, the Buyer shall introduce
safety measures in order to avoid personal injuries, damages to property or damages due to plants
stoppage, etc.
In case of use that can cause risk of damages, the Buyer shall immediately advise the Supplier in
order that it can suggest safety solutions or can decide to reject the order and not to deliver the
Product.
3. AN401 series of instruments are not certified instruments; it is Buyer’s responsibility to check
instrument suitability to the requirements of the specific application.
4. AN401 series of instruments, even when connected to transducers or other equipment, are only parts
of more complex systems and plants; they are sold in thousands per year, for the most different
applications which shall meet as many different norms that are not always known to the Supplier.
For these reasons, S2Tech is obliged to disclaim all responsibility concerning the use of the
instrument; however, a list of the most elementary and basic precautions for the correct use of the
instrument is given in this manual.
Besides, the need of a complete and specific insurance policy is highlighted, especially when
systems and machinery are to be installed in Countries like United States or Canada.
5. AN401 series of instruments are designed and manufactured by S2Tech conforming to the highest
quality standards; the instruments are rugged and designed to the highest possible safety and
reliability: limitations and precautions listed in this manual are aimed to draw Buyer’s attention to
the importance of avoiding damages.
6. During manufacturing process, AN401 series of instruments are submitted to several intermediate
tests and to a final test including performance test of all functions.
Electrical, temperature and mechanical sampling tests are periodically carried out to check
conformity of manufactured items to Product specifications.
For the overmentioned it is thereby certified that the delivered Product is
completely operating.
S2Tech S.r.l.
Via F. Russoli, 6
20143 MILANO - ITALY
Tel. [phone] ( 4 lines )
Fax. [phone] 8910145
www.s2tech.it
E-mail : [email protected]

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Summary
1CE declaration................................................................................... 5
2Electrical connection......................................................................... 6
2.1 Rear terminal connections...............................................................................................6
2.2 Power Supply Connection................................................................................................6
2.2.1 Power Supply...............................................................................................................6
2.3 Connection of 0 to 80 mV differential signal input card [I1 option]............................7
2.4 Connection of ± 10 V amplified signal input cards [I4 option].......................................7
2.5 Connection of 2 wires 4-40 mA or 0-20 mA Input card [I6 option]................................7
2.6 Connection of Start /Stop Input card [I10 option] ...........................................................7
2.7 Connection of 0 to 5 Volt [O1 option] and 0-10 Volt [O2 option] output cards.............8
2.8 Connection of 4-20 mA [O3 option] and 0-20 mA [O4 option] output cards.................8
2.9 Connection of I/O card [D0 option].................................................................................8
2.10 Connection of I/O card [D1 option].................................................................................9
2.11 Connection to external Inputs ........................................................................................10
2.12 Earth connection (CE norms).........................................................................................10
2.13 Connection of (1) RS-232(DB-9) serial port .................................................................11
2.14 Connection of (2) RS-485 (RJ-11bl) serial port.............................................................11
2.14.1 An401plus default serial port.....................................................................................11
2.14.2 RS485 and RS422 line terminator resistor.................................................................12
3Instrument setup ............................................................................. 12
3.1 How to set parameters....................................................................................................12
4Operating parameter setting.......................................................... 13
5Analog output setting...................................................................... 14
6Serial connection setting................................................................. 15
7Measurement functions .................................................................. 16
7.1 Peak function..................................................................................................................17
7.2 Hold................................................................................................................................17
7.3 Protection.......................................................................................................................17
8DSENET serial protocol ................................................................. 18
8.1 “R” Command................................................................................................................18
8.2 Timestamp “r ”...............................................................................................................19
9Sales conditions................................................................................ 20
9.1 Warranty.........................................................................................................................20
9.2 Damage responsibility....................................................................................................20

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1CE declaration
Applied Council’s directives: 89/336/CEE modified by directives 92/31/CEE,
93/68/CEE
Conformity to Standards: EMC:
EN 50081-2: 1994 - Emissions, General Norm
EN 55011
EN 50082-2: 1995 - Susceptibility, General
Norm
ENV 50140
ENV 50141
EN 61000-4-4
EN 61000-4-2
EN 61000-4-8
ENV 50204
Manufacturer: DS Europe srl
Address: via F. Russoli, 6 Milan (Italy)
Equipment type: Indicator Conditioner
Model: AN401 series
Year of registered mark: 2003
The equipment has been tested in the typical installation configuration, as
described by the instruction manual of the Product.
DS Europe srl certify that the above defined equipment meets the
requirements of above mentioned EMC directives.
Milan, 12/06/98
DS Europe srl
Technical dept.

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2Electrical connection
2.1 Rear terminal connections
Figure 1: AN401plus rear view.
2.2 Power Supply Connection
Terminal
Description
Power Supply, polarity free
Power Supply, polarity free
EARTH
Earth Connection
2.2.1 Power Supply
From 10 to 35 Vdc.
From 9 a 15 Vac.
The power supply generator has to be in position to supply up to 10 W.
Please use the EARTH connection, available on the connector, as indicated on paragraph 2.11.
1
2
3
4
1
3
42
543 2 1
9 8 76
CanBus
RS-485
RS-232 INPUT
1
2
3
4
5
1
2
3
4
5
66
4
5
3
1
2
6
4
5
3
1
2
6
4
5
3
1
2
DCBA
EARTH
RJ-11A
RJ-11B

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2.3 Connection of 0 to  80 mV differential signal input card [I1 option]
2.4 Connection of ± 10 V amplified signal input cards [I4 option]
2.5 Connection of 2 wires 4-20 mA or 0-20 mA Input card [I6 option]
IMPORTANT NOTE: power supply to the current loop transducer, connected to this input
card, is the same that powers the instrument.
2.6 Connection of Start /Stop Input card [I10 option]
IMPORTANT NOTE: power supply supplied to the connected magnetostrictive transducer is the
same supplied to power the instrument
Instrument’s power supply must be:
Not less than 18 Vdc if connection cable between transducer and AN401 is within 20 mt.
Not less than 24 Vdc if connection cable between transducer and AN401 is within 100 mt.
Terminal
Description
Note
DS Europe color code
1
+ Transducer’s signal input
from 0 to ± 80 mV
WHITE
2
- Transducer’s signal input
GREEN
5
- Power supply to transducer
+ 5 Vdc power supply: transducers has to
be powered with the power supply voltage
generated by AN401plus.
BLACK
6
+ Power supply to transducer
RED
Terminals 3-4 not connected.
Terminal
Description
Note
DS Europe color code
3
- Transducer signal input
Connect signals from ± 10 V
(maximum acceptable voltage is +18 Vdc )
YELLOW or BLACK
2
+ Transducer signal input
WHITE
6
- Power supply to transducer
Between Pin 5 and Pin 6 it is available the
external Power supply.
YELLOW or BLACK
1
+ Power supply to
transducer
RED
Terminals 4-5 not connected.
Terminal
Description
Note
DS Europe color code
3
LOOP PLUS
+ Power supply to transducer
RED
6
LOOP MINUS
- Power supply to transducer .
BLACK
Terminals 1-2-4-5 not connected
Terminal
Description
DS Europe color code for PCX_ss Magnetostrictive transducer
1
- RTX
Serial receiver (RS-422)
Blue
2
+RTX
Brown
3
+TXD
Serial transmitter (RS-422)
Yellow
4
-TXD
White
5
Transducer’s GND power supply
Black
6
Transducer’s power supply (AN401 plus
has to be powered with +24 Vdc
external power supply)
Red

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For longer connections, between transducer and instrument, verify that at
the transducer’s end You can measure a power supply voltage of 18 Vdc minimum.
To calibrate an AN401plus, connected with a PCX_ss magnetostrictive transducer, follow the
general procedures described in the “AN401plus quick start manual” or in chapter 5 of this manual.
Calibration or measurement displaying is as for load cells, pressure transducers or other standard
transducers.
2.7 Connection of 0 to 5 Volt [O1 option] and 0-10 Volt [O2 option] output cards
2.8 Connection of 4-20 mA [O3 option] and 0-20 mA [O4 option] output cards
2.9 Connection of I/O card [D0 option]
Relays electrical characteristics:
Maximum voltage: 30 Vdc
Maximum current: 2 A
Maximum power: 1W
Operate time: from 2 to 15
mS .
Fig. 10: Connection of relay board.
Terminal
Description
1
Voltage analog output: 0 to 5 Volts (O1 option board) or 0 to 10 Volts (O2 option board).
3
AGND common for 0 to 5 V or 0 to 10 V analog output signal.
Terminals 2-4-5-6 not connected.
Terminal
Description
2
3 Wires Current analog output: 4 to 20 mA (O3) or 0 to 20 mA (O4).
3
AGND common for Current analog output: 4 to 20 mA (O3) or 0 to 20 mA (O4).
Terminals 1-4-5-6 not connected.
Terminal
Description
1
Relay 1 Normally Closed contact
2
Relay 1 Common contact.
3
Relay 1 Normally Open contact.
4
Relay 2 Normally Closed contact.
5
Relay 2 Common contact.
6
Relay 2 Normally Open contact.

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2.10 Connection of I/O card [D1 option].
Opto-insulator electrical
characteristics
- Maximum DC voltage: 50 Vdc.
- Maximum current: 40 mA.
- Settling time: from 18 µS to 10
mS
- Insulation: 200 V peak
On the figure above is shown the typical connection to be used with PLC inputs configured in
“SINK mode”.This is an OPEN collector configuration with all the emitters connected together
and to terminal 5 (AN401 plus, slot A or B).
These AN401 plus outputs are internally protected against polarity reversal with protection
diodes.
1
2
3
4
5
6
Slot A o B
OUTPUT INTERFACE
AN 401 PLUS
RELAY-DPDT
I max 50 mA
V_Relè
Schematic for relays to be connected to AN401 plus opto-insulated outputs.
Terminal
Description
1
Opto-insulated output 1 (open collector)
2
Opto-insulated output 2 (open collector)
3
Opto-insulated output 3 (open collector)
4
Opto-insulated output 4 (open collector)
5
Common Emitter’s output
6
Not connected
1
2
3
4
5
6
Slot A o B
OUTPUT INTERFACE
+24V
+24V
+24V
+24V
24V Common
TIPICAL PLC SINK CONNECTION
AN 401 PLUS

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2.11 Connection to external Inputs
On AN 401 plus are available four opto-insulated inputs. Their behaviour depends from the
selected instrument’s operating mode. Please refer to the chosen operating mode.
Digital inputs can be connected to the “INPUT” screw terminal.
Terminal
Description
Note
2
Input 1 ( KEY 1 )
Maximum voltage: +28 Volt
3
Input 2 ( KEY 2 )
Maximum voltage: +28 Volt
4
Input 3 ( KEY 3 )
Maximum voltage: +28 Volt
5
Input 4 ( KEY 4 )
Maximum voltage: +28 Volt
1
EXGND (Insulated ground)
-
Fig. 1a: Insulated connection Fig.1b: NOT insulated connection
On over mentioned figures (Fig.1a and Fig.1b) are shown connections to be used for
pushbuttons but it is possible to connect: relay, TTL lines, transistors, etc.
In order to light-on the LED emitters, internal to the opto-couplers, a voltage ranging from +12
to +28 Vdc must be supplied to each input.
Opto-coupler’s electrical characteristics:
Insulation: 200 V peak
Settling time: from 18 µS to 10 mSec
Release time: from 18 µS to 10 mSec
2.12 Earth connection (CE norms)
In order to obtain the maximum immunity to electrical disturbs, following are some
recommendations:
Power supply common must be connected to earth.
If AN401 plus is powered by a power supply separated from the rest of the machine,
connect the “EARTH” screw terminal to the nearest earth connection (avoid earth loops
or earth connections disturbed by high power devices).
When connecting signal lines from AN401 plus (analogue outputs, RS232 serial lines,
etc) please remember that they are referred to earth, in order to avoid the creation of
earth loops
Best condition is obtained when all commons (signal and power supply) are connected
to earth at the same point (star connection).
Avoid wiring any input/output cable, directed to AN 401, with high power cables.
If the application is free from electrical disturbs, Earth connection may be avoided.
1
2
3
4
5
INPUT
EXGND
KEY1
+24Vdc
1 2 3
1
2
3
4
5
INPUT
EXGND
+24Vdc
KEY2
KEY3
KEY4
KEY1
KEY2
KEY3
KEY4
EARTH

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2.13 Connection of (0) RS-232(DB-9) serial port
Communication serial port used, for its flexibility, for configuration and for reading of measurements in an ambient not
to noisy, from the electrical point of view (induced and radiated disturbs), and with a serial connection cable not longer
than 3 meters (baud rate can be lowered, in order to optimize serial connection for longer connection lines).
Instrument Computer
TX  RX
RX  TX
GND  GND
Most common connection to be used to connect RS 232 connection between AN401plus and PC compatible computers
are (serial straight cable):
AN 401 Plus - RS 232
Computer
Female 9 pin connector
9 pin connector
25 pin connector
TX
2
2
2
RX
3
3
3
GND
5
5
7
2.14 Connection of (1) RS-485 (RJ-11bl) serial port
RJ –11b
Cable color code
Description
DS Europe Mod. 658-5-X serial converter
1
Brown
Not connected
ATTENZIONE: su questa connessione è presente
l’alimentazione fornita allo strumento PITAGORA
2
White
Data + ( A )
5
3
Red
Data –( B )
4
4
Blue
GND
1
2.14.1 An401plus default serial port.
Settings are:
1. Data bit = 8
2. Parity = None
3. Stop bit = 1
4. Flux control = None
5. Baud rate = 38400

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2.14.2 RS485 and RS422 line terminator resistor
MULTI DROP connections, like RS485 and RS422, require having a resistance applied at both ends of the communication line
(if not yet present inside the connected devices); one is to be placed in parallel to the last AN401plus and one on the PLC or
computer on the other end.
AN401plus has no internal resistance for RS485 or RS422 but It can be applied under customer’s request.
This resistor has to be 120 Ohm ¼ Watt.
This resistance is to be applied solely on the last AN401plus of the serial net, in order not to lower, too much, the overall line
impedance (fig.11).
3Instrument setup
3.1 How to set parameters
This chapter describes the sequence to be used to set AN401plus, as working parameters and It is valid for
all of Its different menus. All different operational modes share the same sequence to set the desired
values or parameters, or levels.

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4Operating parameter setting

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5Analog output setting
Note: valid only if an analog output card is installed into AN401plus.
Analog output card is active for all operating modes.
DMODE command allows setting analog output in the following ways:
DMODE = 1
DMODE = 0
Current analog output behavior can be set in the same way.

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6Serial connection setting
BAUD set value
Serial data transmission rate (baud)
Default values
Serial data
transmission rate
(baud)
0
600
Baud rate
4 (9600 baud)
1
1200
Address
0
2
2400
Com
0
3
4800
4
9600
5
19200
6
38400
7
57600
Table 1: Available baud rate values.

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7Measurement functions
By pressing pushbutton “”Alarm levels configuration menu is entered.
Alarm levels menu
Parameter
Description
Default
Possible values
LEV0
Level 0 switching value
1000
±99999
HIS0
Level 0 hysteresis
0
from 0 to 50
SET0
Level 0 configuration
0
See SET parameter
LEV1
Level 1 switching value
1000
±99999
HIS1
Level 1 hysteresis
0
from 0 to 50
SET1
Level 1 configuration
0
See SET parameter
LEV2
Level 2 switching value
1000
±99999
HIS2
Level 2 hysteresis
0
from 0 to 50
SET2
Level 2 configuration
0
See SET parameter
LEV3
Level 3 switching value
1000
±99999
HIS3
Level 3 hysteresis
0
from 0 to 50
SET3
Level 3 configuration
0
See SET parameter
SET parameter
Working MODE
Function
0
Relay disabled
1
Relay activates on GROSS measurement.
2
Relay activates on NET measurement.
3
Relay activates on Positive peak measurement.
4
Relay activates on Negative peak measurement.
Measures
NET
GROSS
TARE
Display
NET = (GROSS –Dynamic ZERO)
Keyboard
Push button C
Set Dynamic ZERO = Measured value
Push button E
When pressed display shows Dynamic ZERO value
Push button 
Level setting menu
Push button 
When pressed display shows GROSS
Inputs
Key 1
Set Dynamic ZERO = Measured value
Key 2
Hold of the measurement
Key 3
Keyboard lock / protection enforcement
Key 4
If active it stores the measured peak value
Relays
RL0
Level 0 functions
RL1
Level 1 functions
RL2
Level 2 functions
RL3
Level 3 functions

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7.1 Peak function
The peak function stores and displays the maximum value reached by transducer’s signal when the KEY4 rear contact is
activated (see table 1)
Key 4 rear contact has to be kept closed as long as peak value is to be displayed (see chapter 2.10).
When this function is active, the leftmost LED dot under the minus sign is powered on.
The stored peak value can be zeroed by:
Pressing C (ESC) push button on AN401plus front panel;
Closing KEY1 terminal on rear terminal panel (see chapter 2.10).
7.2 Hold
Hold function freezes the measurement actually shown on the display, until it is disabled.
All function measurements are freezed and it is activated by closing KEY 2 contact (see chapter 2.10).
To de-activate this function open the contact
7.3 Protection
AN401plus has a protection system that prevents not authorized personnel to tamper with the instrument settings, nor
with programming menus.
To activate protection, connect KEY3 as for chapter 2.10.
When protection is enabled it is not possible to access to start-up programming menus.
In order to apply authorized changes to the instrument, remove the connection on KEY3.
Protection may be applied solely if an O5 I/O card is installed on slot C

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8DSENET serial protocol
NOTE: for protocol compactness it was decided to use only one character to address an instrument.
After the first ten numbers, address numbering continues with alphabet letters, thus A means 10, B means 11 and so on
until Z that means 35.
8.1 “R” Command
Command “R” allows to request, from a remote computer, the measure acquired by AN401plus within the active
operating mode. The command argument defines which measures is requested to the instrument and is independent
from the actual measurement function.
Argument of the R command is an ASCII character and may assume the following values:
Command format
@
ID
R
Index ( ind )
CR
Where: ID = address of the connected AN401plus (in case only one AN401 is connected, by sending “?” the instrument
will always reply). The identifier shall be a character in the set 0-9 or A-Z; ID can also be the character “?” if
a message is to be sent to an instrument the identifier of which is unknown.
R= read measure command.
Index = 1 digits numeric index indicating to AN401plus which measure is requested; see “Ind” column.
Note: RO means that the parameter is Read Only and cannot be modified by user.
CR = “Carriage Return” must close every message sent to the instrument and is represented by an ASCII
character.
Ind
Prot
Parameter
Symbol
0
RO
Measured value A/D converter points
VAL_AD
1
RO
Filtered measured value A/D converter points
VAL_ADF
2
RO
Gross value in engineering units
VAL_UMEC
3
RO
Net value in engineering units
(GROSS–ZDYN)
VAL_NZDYN
4
RO
Net value in engineering units
(GROSS–TARE)
VAL_NTARE
5
RO
Peak value (only for operating mode 7) with Kg engineering units
VAL_ROTT
6
RO
Peak value (only for operating mode 7) with N engineering units
VAL_ROTTN
Example:
Measured value, in A/D converter points, is requested with @?R0CR.
Reply to command “R”: xxRyyyyyyyy
Where:
xx = sent command index ( Ind ): 2 digits.
R= reply to command “R”: 1 digit.
Yyyyyyyy = measured value: 8 digits.

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8.2 Timestamp “r ”
To obtain, from AN401plus, measured value with timestamp reference send command “r”.
Timestamp is obtained from an incremental counter related to the measure performed by AN401plus and its value is
ranging from 0 to 65535; when maximum is reached It restarts from zero.
Working of “r” command is like “R” command (same command structure).
Example:
To request measured A/D converter value, send the following string: @?r0CR.
Reply to command “r”: xxRyyyyyyyyzzzzz
Where:
xx = sent command index ( Ind ): 2 digits.
R= reply to command “R”: 1 digit.
Yyyyyyyy = measured value: 8 digits.
zzzzz = timestamp: 5 digits.

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9Sales conditions (for all DS Europe by S2Tech products)
9.1 Warranty
Several electrical and mechanical tests carried out during manufacturing process and the final test carried out on each
unit warrant that delivered Product is free from defects in materials, workmanship and performance.
During the warranty period of six months from delivery, at no additional charge, Product rendered defective under
normal use will be repaired or replaced at S2Tech factory.
The Product shall be forwarded at Buyer’s expense concerning shipping, insurance, customs duties or any other charges
associated with transportation of the Product.
This Limited Warranty does not extend to any Product that has been damaged or rendered defective as a result of
accident, misuse, or abuse.
Moreover, in case of heavy or non-reparable damages, the Product may be rendered disassembled to the Buyer if the
cost to re-assemble the Product will not be paid.
The Product contains firmware that is provided on an “AS IS” basis: essentially, firmware is in accordance with the
description of the Product manual.
Except as expressly set forth in this warranty, S2Tech makes no other warranties, expressed or implied, including any
implied warranties of merchantability and fitness for a particular purpose, concerning hardware and firmware of the
Product and its relevant documentation.
This Limited Warranty does not extend to any semiconductors: integrated circuits, transistors, diodes, microprocessors,
memories and whatever else not covered by semiconductor Manufacturers’ warranty.
The Buyer shall check the delivered Product within 10 days from receipt; after this limit, the Product shall be considered
accepted.
S2Tech liability is limited to the above; S2Tech is not liable for any personal injuries, damages to property or damages
due to stoppage of machinery or plants caused by installation and use of supplied Product (including, without any limits,
any lost profits, lost savings, stoppage of activities, lost information or any other economic losses).
9.2 Damage responsibility
DS Europe products are parts of more complex systems and plants; these are sold in thousands per year, for thousands
different applications with thousands of norms and precautions concerning installation and use that are not known to the
Manufacturer.
In case of installation or use that can directly or indirectly cause personal injuries, damages to property or damages due
to stoppage of machinery or plants, before installation the Buyer shall immediately advise S2Tech that will stop
purchase negotiation or suspend deliveries of the Product.
However, to minimize or to avoid risk of damages, S2Tech is available, without any responsibility, to suggest solutions
and protection accessories, test certifications, competent Bodies or consultant Institutes.
Moreover, it is recommended to read carefully installation and use instructions attached to Product delivery.
These instructions can also be sent during purchase negotiation on Buyer’s request.
NOTICE:
Even if not expressly mentioned, these “Terms of Sale” are integral and complementary part of any bulletin, invoice or
instruction manual. S2Tech srl
Terms of Sale no. 140998 of September 14th, 1998.