Ados A200E User manual

433-MTA200I2 Rev. 5 Page 1 of 69
ELECTRONIC WEIGHING
INSTRUCTION
MANUAL A200E
PESATURA ELETTRONICA
Batch control
Rev 2.43
5
Errata corrige batch status word
coding 18-02-02 Golinelli G: Paulitti G.
4
Update to software revision 2.42 23/03/00 Golinelli G: Paulitti G.
3
Update to software revision 2.41 14-10-99 Golinelli G: Paulitti G.
2
Update to software release 2.40 14-12-98 Golinelli G: Paulitti G.
1
Update to software release 2.14 20-03-97 Paulitti G. Golinelli G:
0
Issue 07-01-97 Golinelli G: Paulitti G.
433_4 Rev. Subject of the revision Date Prepared Checked Approved

ADOS S.R.L. Buccinasco (MI)
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Contents
1. INTRODUCTION....................................................................................................................4
1.1 General ..................................................................................................................................4
1.2 Versions/options....................................................................................................................4
1.3 Documentation......................................................................................................................4
1.4 Equipment marking description .........................................................................................5
1.5 Technical data .......................................................................................................................6
2. INSTRUMENT OPERATIONS..............................................................................................7
2.1 Turning on the instrument...................................................................................................7
2.2 Display indication.................................................................................................................8
2.2.1 Primary display ................................................................................................................................8
2.2.2 Auxiliary display..............................................................................................................................8
2.3 LED status indicators...........................................................................................................9
2.4 Key functions.......................................................................................................................10
2.5 BATCH SEQUENCE CONTROL.................................................................................... 11
2.5.1 Batch control ..................................................................................................................................11
2.5.2 Cycle and formula selection...........................................................................................................12
2.5.3 Batch cycle control.........................................................................................................................13
2.6 Dosed material totalizer.....................................................................................................16
2.7 Batch report ........................................................................................................................17
2.8 Display indications..............................................................................................................18
2.9 External Input function......................................................................................................19
2.10 Output control.................................................................................................................20
2.10.1 Outputs on main board................................................................................................................20
2.10.2 Component command outputs on expansion board....................................................................21
2.11 SERIAL LINE MANAGEMENT......................................................................................22
2.11.1 Primary serial interface...............................................................................................................22
2.11.2 Multidrop networks ....................................................................................................................23
2.11.3 MODBUS protocol.....................................................................................................................24
2.11.4 Continuous modality...................................................................................................................35
2.11.5 Auxiliary serial interface ............................................................................................................36
2.12 ANALOG OUTPUT MANAGEMENT.........................................................................37
2.12.1 Analog signal adjustment............................................................................................................37
2.13 TIME AND DATE...........................................................................................................38
3. INSTALLATION....................................................................................................................39
3.1 Material receiving...............................................................................................................39
3.2 Instrument mounting .........................................................................................................39
3.3 Connections.........................................................................................................................40
3.3.1 Wiring the instrument to the protective earthing system................................................................41
3.3.2 Power supply connection................................................................................................................41
3.3.3 Load cell connection ......................................................................................................................42
3.3.4 Digital input connection.................................................................................................................43
3.3.5 Relay output connection.................................................................................................................44
3.3.6 Primary serial port connection .......................................................................................................45
3.3.7 Auxiliary serial port connection.....................................................................................................46
3.3.8 Analog output connection (option).................................................................................................47
4. INSTRUMENT CONTROL .................................................................................................48
4.1 Introduction.........................................................................................................................48
4.2 Control function selection..................................................................................................49

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4.2.1 Password.........................................................................................................................................50
4.2.2 Keyboard time out..........................................................................................................................50
4.2.3 Keyboard disable function..............................................................................................................50
4.3 General operating parameter configuration....................................................................51
4.3.1 Configuration printout....................................................................................................................51
4.3.2 Operating parameter selection........................................................................................................51
4.3.3 Modifying the value of the operating parameters...........................................................................52
4.3.4 Graduation......................................................................................................................................53
4.3.5 Resolution.......................................................................................................................................53
4.3.6 Decimal point.................................................................................................................................53
4.3.7 Averages.........................................................................................................................................53
4.3.8 Language selection.........................................................................................................................54
4.3.9 Opening on AZM ...........................................................................................................................54
4.3.10 Motion Band...............................................................................................................................54
4.3.11 Zero tracking limit......................................................................................................................54
4.3.12 Keyboard disable........................................................................................................................55
4.3.13 D/A converter function...............................................................................................................55
4.3.14 D/A Zero.....................................................................................................................................55
4.3.15 D/A Full Scale ............................................................................................................................55
4.3.16 Primary serial port ......................................................................................................................56
4.3.17 Baud rate.....................................................................................................................................56
4.3.18 Address on RS485 ......................................................................................................................56
4.3.19 Auxiliary serial port....................................................................................................................56
4.3.20 Print wait time.............................................................................................................................56
4.3.21 Batch output control modality ....................................................................................................57
4.3.22 Zero Band ...................................................................................................................................57
4.3.23 Maximum allowable load ...........................................................................................................57
4.3.24 Totalizer scale coefficient...........................................................................................................57
4.4 Batch parameter configuration.........................................................................................58
4.4.1 Component .....................................................................................................................................60
4.4.2 Set value.........................................................................................................................................60
4.4.3 Slowdown value.............................................................................................................................60
4.4.4 Fly value.........................................................................................................................................60
4.4.5 Tolerance value ..............................................................................................................................60
4.4.6 Stabilisation time value..................................................................................................................60
4.4.7 Wait time value ..............................................................................................................................61
4.4.8 Batch maximum time value............................................................................................................61
4.5 Programming theFormula and the Cycles to execute.....................................................62
4.6 Calibration ..........................................................................................................................63
4.6.1 Zero calibration ..............................................................................................................................64
4.6.2 Span calibration..............................................................................................................................65
4.7 Date and time set up...........................................................................................................66
4.8 Test .......................................................................................................................................67
4.9 System Initialization...........................................................................................................68
4.9.1 Switch controlled initialization ......................................................................................................68
5. INSTRUMENT CONFIGURATION TABLE.....................................................................69

ADOS S.R.L. Buccinasco (MI)
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1. INTRODUCTION
1.1 General
The A200E instrument is a microprocessor based weight amplifier and indicator.
It was designed to be connected to a maximum of 8 load cells (350 Ωbridge), connected in parallel.
A keyboard can be used to carry out all the programming, configuration and calibration functions.
A series of display messages guides the operator through all the phases.
A series of options sets up the instrument for the main functions related to electronic weighing.
1.2 Versions/options
A200EXXX
Type of power supply (2=230 Vac - 1=120 Vac)
Version with analog output 4-20 mA(A) - 0-10V (V)
Version set up for management: Batch (D)
SAMPLE ORDER
A200E wired for 230 Vac operation A2 0 0 E 2 D
1.3 Documentation
This technical manual is relevant to the batch version of the instrument.
The manual relevant to the base version of the instrument is 417-MTA200I1.
The manual relevant to the Belt weighing version of the instrument is 553-MTA200BE.
The manual relevant to the LIW weighing version of the instrument is 554-MTA200LE.
For the peak version there is an addendum (313-MTA200EI-PEAK) to the 417-MTA200I1 manual

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1.4 Equipment marking description
A200E is marked with symbols compliant with European Standard EN61010-1 (April 1993).
SYMBOL DESCRIPTION
∼
Alternating current
Protective conductor terminal
Earth (ground) terminal
Caution (refer to accompanying
documents)
Caution, risk of electric shock

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1.5 Technical data
Power supply 230 Vac 50/60 Hz -15%...+10%
120 Vac 50/60 Hz (optional) -15%...+10%
Consumption 10VA (15 VA MAX.)
Fuse 230 Vac: 125 mAT
120 Vac: 250 mAT
Operating temperature from - 10 °C to + 40 °C
Storage temperature from - 40 °C to + 70 °C
Relative humidity 95% non-condensing
Load cell power supply 8V dc (short-circuit proof)
Maximum current 190 mA ( 8, 350 Ωload cells in parallel)
Electric connection 4 wires (standard), 6 wires with sense on request
Analog signal 0.5 - 2.5mV/V
Resolution 0.8 µV/Grad
Conversion speed 55 conversion/sec
Graduation 1000-2000-4000-5000-10000
Resolution 1-2-5-10-20-50
Off scale limit (UL/OL) 20% of full scale load
Display Primary: five (5) digits LED
Auxiliary: eight (8) alphanumeric characters
Polarity sign -
Keyboard sixteen (16) keys in matrix 8x2
Status indicators eight (8) LED indicators
Decimal point user defined: 0 - 0.0 - 0.00 - 0.000 - 0.0000
Zero tracking user defined (0.5 - 1 - 2 - 5 - 10 div/s)
AZM aperture user defined (OFF - 1.9% - 100% of F.S.)
Motion band user defined (OFF - 0.5 - 1 - 2 - 5- 10- 20 div)
Serial outputs Programmable main output RS232 or RS485
Half-duplex, aux output RS232, Tx only
Digital inputs three (3) optoinsulated digital inputs (12/24 dc)
Digital outputs three (3) base relay outputs and eight (8) extra
Contact rating 0.5 A 24 Vdc
Housing Anodized aluminum construction for assembly
on board front panel (Standard DIN 43700)
Dimensions 96 x 192 x 140
Drilling 91 x 188
Weight 1.5 Kg
Connection Front panel mounting with two holding brackets
mounted on the sides of the enclosure
Analog output 0-10V optoinsulated
Voltage output 0-10V, 16 bit resolution,
min. 10 KΩoptoinsulated 1000 V
Analog output 4-20 mA optoinsulated
Current output 4-20 mA, 16 bit resolution,
500 Ωmax. optoinsulated 1000 V

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2. INSTRUMENT OPERATIONS
2.1 Turning on the instrument
When the instrument is turned on, the primary display indicates the following:
- - - - -
and the auxiliary display indicates the following, at intervals of about two seconds:
A D O S S r L
A 2 0 0 E
R v 2 . 4 3 (Revision of the installed software)
After this phase the instrument is immediately operative
B
C
D
E
F
A
SW1
TP3
TP2
BT1
ZS1
U8

Figure 1

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2.2 Display indication
2.2.1 Primary display
Under normal operating condition the display shows the value of weight, using the following
criteria:
•leading zeroes will presented as blank
•if the value is greater then 99999 only the 5 less significant digit are displayed and the display
will blink to indicate that there is another digit, which value is 1, not displayed (please note that
during configuration is not possible to set any combination of graduation and resolution which
leads to results higher than 199999)
•the polarity “minus” (in case of negative values) is indicated in the leftmost digit
•if the negative value is composed of five digits (for example -32420), the leftmost digit will
show alternatively the “minus” and the fifth digit value.
•if the negative value is composed of six digits only the 5 less significant digit are displayed and
the display will blink to indicate that there is another digit, which value is 1, not displayed. The
leftmost digit will show alternatively the “minus” and the fifth digit value.
Indication limits are the following:
lower limit: - 20% of full scale
higher limit: 120% of full scale
if the weight is under the lower limit the following will be displayed:
−−U L −
if the weight is over the upper limit (or if the load cell signal is higher than 20 mV the following
will be displayed:
−−O L −
2.2.2 Auxiliary display
Under normal operating conditions and the batch cycle not started, the auxiliary display indicates
the current time, in the format hours-minutes-seconds:
0 9 : 1 1 : 5 5
Press 9on the keyboard to display the current date, in the format day-month-year, for two seconds:
1 5 - 0 5 - 9 6
When he batch cycle is ON the display shows the cycle status (see following chapters for details).
In the configuration and calibration phase, the auxiliary display is used to guide the operator in
carrying out the functions.

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2.3 LED status indicators
The indications provided by the signal LEDs located on the front panel of the instrument are
explained below:
→0←
The LED is on when the value of the weight is 0 and is stable within 1/4 of a division.
The indication is supplied under gross weight and net weight conditions.
G
The LED is on when the instrument displays the gross weight.
Under this condition the Tkey is not operative.
N
The LED is on when the instrument displays the net weight (gross weight minus the tare).
Pressing the Tkey in NET the instrument copies the current value of the gross weight into the tare
value, thus clearing the value of the net weight.
MOTION
The LED is on when the measurement is moving with a gradient that is greater than what is set in
the configuration.
KG
The LED is on to signal that the weight indication is in kilograms.
LB
This signal is currently not controlled.
L1
This signal is currently not controlled.
FAULT
The LED is on to indicate that the instrument need to be calibrated (Zero or Span or both).

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2.4 Key functions
ZERO
Press this key (with the instrument in the Gross mode) to clear the divisions indicated on the display
within the limits set by the configuration of the “AZM limit” parameter.
The key is active only if the instrument is not in the Batch mode.
G/N
Press this key to toggle between the Gross and Net condition.
The key is active only if the instrument is not in the Batch mode.
T
Press this key (with the instrument in the Net mode) for the instrument to copy the current value of
the gross weight into the tare value, thus clearing the net weight value.
The key is active only if the instrument is not in the Batch mode.
F
Press this key to enter the configuration modality.
The key is active only if the instrument is not in the Batch mode.
0
Press this key to print the configuration (see the instrument Configuration paragraph).
The request takes effect only if the serial port is configured for “Batch print”.
1
Press this key to enter the configuration modality of the Batch parameters (Formulas).
Note: if the serial line is active, the status flag still reports the “configuration” indication.
The key is active only if the instrument is not in the Batch mode.
2
Press this key to enter the configuration modality of the number of cycles and the formula number
to be dosed.
Note: if the serial line is active, the status flag still reports the “configuration” indication.
The key is active only if the instrument is not in the Batch mode.
3
Press this key to enter the display modality of the number of cycles completed.
Note: if the serial line is active, the status flag still reports the “configuration” indication.
The key is active only if the instrument is not in the Batch mode.
6
Press this key to display the value of the dosed material totalizer.
9
Date display. Press this key for the instrument to display the current date, expressed in day-month-
year, for 2 seconds.

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2.5 BATCH SEQUENCE CONTROL
2.5.1 Batch control
The instrument can automatically dose various components based on data organised in formulas.
For this purpose it is possible to configure up to four formulas, each consisting of eight weighing
steps.
Therefore, the operator can select one of the four formulas and execute one or more Batch cycles.
Each step is defined by the following parameters:
•Component
•Set
•Slowdown value
•Fly
•Tolerance
•Stabilisation time
•Wait time
•Maximum Batch time
Component
This is the number of the component to dose and defines, in relation to the output control modality,
which relays will be implemented during Batch.
Set
This is the weight of the component to dose.
Slowdown
This is the weight value to be dosed in “slow” mode.
Fly
This is the weight value for the component “in fly”.
Tolerance
This is the allowable tolerance value on the weight of the dosed component.
Stabilisation time
This is the wait time between the de-activation of the component command and the dosed weight
control.
Wait time
This is the wait time for switching to the next component.
Maximum Batch time
This is the maximum allowable time to reach the set. If equal to 0, the control is excluded.

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2.5.2 Cycle and formula selection
The Batch cycle can be activated only if the formula to be dosed and the number of cycles to be
carried out were previously selected.
The selection is made by pressing the 2key to enter the cycle configuration, therefore following the
parameter configuration operating modalities.
The instrument can set from 0 to 128 cycles: setting 0 cycles stops the Batch operation, while
setting 128 cycles selects the “infinite cycles” mode.
When the number of cycles is changed, the instrument clears the “completed cycles” counter, the
value of which can be controlled by pressing the 3key (with Batch not activated).
The instrument, once Batch is activated, increases the “completed cycles” counter every start cycle,
so an aborted cycle is still counted as having been performed.
Therefore, Batch continues automatically until the number of cycles completed is equal to the
number of cycles to carry out.
The number of cycles is cleared also when the dosed product totalizer is cleared.

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2.5.3 Batch cycle control
The Batch cycle control performed by the instrument is structured into operating steps which are
described in the following table.
PHASE FUNCTION
0 Batch is not activated and the instrument is waiting for the START command.
START is accepted only if all the following conditions have been verified:
⇒the instrument is in operating mode (not in configuration, calibration test or clock set)
⇒the instrument is calibrated
⇒a formula was selected
⇒at least 1 cycle was set
⇒the formula contains at least 1 component
If all the conditions are satisfied the instrument goes to phase 1.
1 The instrument is automatically placed in “GROSS” and, with a stable weight, the
system verifies if the balance is in the ZERO band (the ZERO band is also valid for
negative weights).
If the weight is out of the Zero band or not stable, it is still possible to activate Batch
using the ACK input provided that the gross weight on the balance added to the weight
of all the components of the formula is less than the balance full scale.
If the weight is out of the Zero band or not stable, it is possible to interrupt the cycle
using the ABORT input.
If the gross weight is within the zero band or the off band was accepted (with the ACK
command), theAlarm output is de-activated and the instrument goes to phase 2.
2 This is the Batch cycle start phase.
⇒The step counter is cleared
⇒The “Batch in Progress” output is set
⇒The “End Batch” output is reset (if present)
⇒The heading of the Batch report is printed
⇒The instrument is placed in “Net” and the Tare is performed
The instrument goes to phase 3.
3 This is the Component start phase.
The instrument checks for the presence of the component in the current step: if it is not
present, it goes directly to phase 8 (End component) otherwise it waits for the wait time
between components to expire, activates the step time-out and goes to phase 4.
4 This is the “Fast” Batch phase.
The component outputs are set based on the modality defined in the configuration.
In two-speed Batch, upon reaching the weight value equal to the [set minus slowdown]
value, the instrument goes to phase 5 ( “Slow” phase).
During fast Batch upon reaching the weight value equal to the [set minus fly] value, the
instrument goes to phase 6 (weight stabilisation).

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The Batch operation can be suspended by closing the PAUSE/ABORT input contact: all
the component command outputs are de-activated and the indication on the auxiliary
display flashes to indicate the non-operating condition. During the suspension, the Time-
out control timer is frozen.
The Batch operation can be started again by closing the ACK input contact or can be
permanently interrupted by re-closing the PAUSE/ABORT input contact. In this case the
instrument clears the “Batch in Progress” and “Batch in Alarm” status, de-activates the
relative outputs and goes to phase 0 (Batch de-activated).
5 This is the “Slow” Batch phase.
The component outputs are set based on the modality foreseen in the configuration.
Upon reaching the weight value equal to the [set minus fly] value, the instrument goes to
phase 6 (weight stabilisation).
The Batch operation can be suspended by closing the PAUSE/ABORT input contact: all
the component command outputs are de-activated and the indication on the auxiliary
display flashes to indicate the non-operating condition. During the suspension, the Time-
out control timer is frozen.
The Batch operation can be started again by closing the ACK input contact or can be
permanently interrupted by re-closing the PAUSE/ABORT input contact. In this case the
instrument clears the “Batch in Progress” and “Batch in Alarm” status, de-activates the
relative outputs and goes to phase 0 (Batch de-activated).
6 This is the weight stabilisation phase and is used to recover the end of the product.
If defined in configuration, the instrument activates a wait timer whose value can be
checked on the service display.
When the time expires and with the weight stable, the dosed weight is checked:
⇒if the weight is less than the [set minus fly] value, the “Slow” or “Fast” phase is re-
activated (it depends on whether or not the slowdown is present)
⇒if the weight is in tolerance, the systems goes to phase 8 (end component control)
⇒if the weight is out of tolerance, the system goes to phase 7 (component out of
tolerance control)
When the stabilisation time expires, if the weight is not stable, the system goes to phase
7 (component out of tolerance control).
7 This is the out of tolerance control phase.
The “Batch in Alarm” output is activated and the status of the ACK and PAUSE/ABORT
input is checked:
⇒if the operator closes the ACK input, the instrument de-activates the “Batch in Alarm”
output and goes to phase 8 (end component control)
⇒if the operator closes the PAUSE/ABORT input, the instrument de-activates the
“Batch in Alarm” output and goes to phase 9 (end cycle control)
8 This is the End Component control phase.

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The instrument performs the following operations:
⇒increases the Batch step counter
⇒activates the wait timer between one component and the next one
⇒places the system in the NET status and calculates the TARE (in this way any material
that enters the balance is counted in the next component)
If the formula is not completed, it then returns to phase 3 (start new component) or goes
to phase 9 (end cycle control).
9 This is the End Cycle control phase.
⇒The Batch in Progress status and relative output are cleared.
⇒The End Batch status and relative output are activated.
⇒The GROSS status is forced.
⇒A check is performed to determine if there are still any cycles to carry out and, if so,
the system goes to phase 10 (start conditions wait), otherwise Batch closes.
10 This is the phase that checks the re-start conditions of a new cycle.
The instrument, after the balance has returned to the ZERO band, checks the status of the
“START” and “PAUSA/ABORT” inputs:
⇒If the START contact is closed, it goes to phase 1 (start cycle conditions check)
⇒if the operator closes the PAUSE/ABORT input, the instrument de-activates all the
outputs and Batch is closed

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2.6 Dosed material totalizer
The instrument maintains a dosed material totalizer: at the end of Batch cycle (regular or aborted)
the weight of the material dosed is added to the totalizer.
The totalized value is maintained in “division” (whith a capacity of 4 billion divisions) and the
presentation is made respecting the sensitivity and position of the decimal point defined in
configuration. The value is converted over 7 digits (10 million).
It is also possible to reduce the scale of the display of the totalized value by a programmable factor
(1,10,100,1000,10000) in order to present very large numbers or to eliminate the decimals which in
the accumulated total lose their meaning.
The scale factor is applied only during the data presentation phase, for which it can be varied at any
time without changing the contents of the totalizer.
The content of the totalizer is printed in the Batch report (if the system is equipped with a printer)
or can be indicated on the service display by pressing the 6key (when the instrument is not in
cycle).
The content of the totalizer is cleared manually by entering the display (6key) and pressing the
ZERO key.

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2.7 Batch report
The instrument can produce a Batch report with the following format:
Formula 3 - Cic. 0015 of 022 Formula and Cycle number
11-05-96 15:22:44 Date and time of cycle start
Comp. Set Dosed Stat.
02 100.0 91.8 *
02 100.0 99.8 K
03 60.5 33.4 P
03 60.5 33.4 A
Cycle Total 133.2 cycle dosed weight
Batch Total 985.2 total dosed weigth
The symbol in the “STATUS” column may have one of the following values:
[space] Regular component Batch end. The value in the “Dosed” field indicates the weight
effectively present on the balance after weight stabilisation.
* Batch end with Component Out of Tolerance
K Out of Tolerance Acquisition and Batch continuation. The value in the “Dosed” field
indicates the weight effectively present on the balance at the time of acquisition.
P Suspended cycle (PAUSE)
A Interrupted cycle (ABORT)
The value associated to “Tot. di ciclo” indicates the weight of the material dosed in the current
cycle.
The value associated to “Totale dosato” indicates the weight of all the material dosed after the last
totalizer clearing operation.
The ratio is generated on one or both the serial lines, provided that they are configured in the
“DOSE” modality.

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2.8 Display indications
While performing the Batch cycle, the auxiliary display is used to show the operator the Batch
progress status.
Batch status
The general format of the indications is the following:
F 3 1 C 1 2 V Flashing
a b c d e f g h
Position a: Formula code
Position b: Number of the formula being carried out (1 - 4)
Position c: Number of the step being carried out (1 - 8)
Position e: Component code
Position f,g: Component number (1 - 32)
Position h: V (Fast) or L (Slow) or Stabilisation
Maximum time out
T i m e O u t Flashing
The message is displayed as an alternative to the Batch status message when the maximum
configured time out expires. The signal is cancelled at the end of the component or on ACK.
Out of tolerance
F T o l l e r Flashing
After the stabilization time has expired, the dosed weight is out of tolerance. The signal is cancelled
on ACK or ABORT.
Off Zero
E m p t y ? Flashing
The Batch cycle is activated and the weight of the material contained in the balance (gross weight)
is greater than the maximum allowable value (the “Zero Band” parameter). The signal is cancelled
automatically when the value returns within the Zero band or on ACK.
Wait time
A t t 1 2 3 4
The instrument displays the wait time between two consecutive steps. The value “1234” is the time
in seconds that is left before activation of the next component.

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2.9 External Input function
The function of the inputs with the Batch activated is the following:
Input 1 - Start Cycle
Closing the Start input the system activates the Batch cycle provided that the following conditions
are checked:
•The cycle is not already active
•the instrument is calibrated
•there is at least one configured component
Input 2 - Pause/Abort
The input is active on the closing.
With the cycle active, it is used to pause the Batch operation (the commands are removed and the
time count is suspended).
With the cycle suspended, it aborts the Batch operation (the Cycle in Progress outputs are removed
as well as the Alarm, if present).
Input 3 - ACK
The input is active on the closing.
This is used to re-activate the cycle and to cancel the alarm output in case of blocking alarms (off
zero and out of tolerance) or in any case to cancel the alarm output if non-blocking alarms are
present (maximum time out).

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433-MTA200I2 Rev. 5 Page 20 of 69
2.10 Output control
In the Batch version the outputs are all controlled by the instrument:
•the outputs on the main board are used to provide general information relative to the Batch status
•the outputs on the expansion board are used to control the components
2.10.1 Outputs on main board
Batch in Progress
The signal is issued by relay 1 of the main board.
The relay is excited (and its contact closed) for the entire Batch cycle, from the moment at which
the cycle start is enabled to its conclusion.
End Cycle
The signal is issued by relay 2 of the main board.
The relay is excited (and its contact closed) at the end of the Batch cycle and is maintained until the
balance returns to within the Zero band.
Alarm
The signal is issued by relay 3 of the main board.
The relay is excited (and its contact closed) to signal a fault condition. The command is removed on
ACK or on automatic return (in case of off Zero or Time Out).