microSYST MS8347 Parts list manual

COMPETENCE IN
MEASUREMENT
WEIGHT BATCHING CONTROLLER
with Analog Output
and MODBUS RTU ommuni ation
MS8347
V 2.3
TECHNICAL DESCRIPTION
AND
USER MANUAL
PLOVDIV 2020
Document revision 2020-04-07

NCONTENT Стр
I. ORDER CODE 2
II. FE TURES 3
III. DV NT GES 3
IV. DESIGN TION 3
V. TECHNIC L D T 4
VI. FRONT ND B CK P NEL. TERMIN L ND CONNECTION 5
VII. OPER TING MODES 6
VIII. OPER TING GUIDE 8
IX. SYSTEM P R METERS OF THE REGUL TOR 11
X. CTIONS G INST INTERFERENCE 13
XI. COMMUNIC TION - MODBUS RTU 14
I. ORDER CODE
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MS 8347 - x.x.x.x.x.x.x.x.x.x
Analog output - 4-20mA ISO
K1 K2 K3
AA BA CA
AB BB CB
AD BD CD
- no
- Relay
- Triac
5A/250V
2A / 250V
- OC NPN iso AF BF CF U =70V I = 500 mA
CEmax cmax
Power suppl - 220 VАС/50 Hz
MS 8347- 1.R.W.PA.C1 AF.BF.CF.S1.I1.
Communication - RS485 MODBUS
Displa (6 digits) - LED 14 mm
Displa color - Red
Sensor suppl / Sensitivit .
5 VDC : 1 … 7 mV / V
Example:
Power suppl
PA -
-
220 V AC / 50 Hz
PB 24 V DC
Sensor suppl / sensitivit
W - 5 VDC : 1 … 7 mV / V
X - Other
Communication
C0 - No
C1 - RS485 MODBUS RTU
Speed Conversion
S1 - 12 5 mS / 80.0 SPS
S2 - 60.0 mS / 16.7 SPS
Displa ( 6 digit format)
0 - LED 10mm
1 - LED 14 mm
Displa color
R - Red
G - Green
Analog output
I 0 - No
I1 -
2 -
3 -
- Other
0 20 mA
4 20 mA
I 0 10 V
IX



I
Speed Conversion- 12 5 mS/80.0 SPS
Speed Conversion
S1 - 12 5 mS / 80.0 SPS
S2 - 60.0 mS / 16.7 SPS

II. VERSION FEATURES
●MS 8347 is implemented in two hardware variants depending on requirement of conversion speed.
The software supports both. It is necessary in Menu / Parameter / Bit – SYST/rS485/bit6” with
which hardware works the software to be specified. Depending on that the maximum conversion
speed is 12.5 mS /80 SPS – number of measurements per second/ or 60 mS / 16.7 SPS/. In both
variants for greater noise immunity can be operated with 100 mS / 10 SPS /.
●MS 8347 operates as a controller / it controls it's outputs, only if the tare wei ht is less than that of
Calibration / CALL /.
●MS 8347 forms three independent galvanically isolated power supply voltages:
- Power supply of the Measurement circuit
- Power supply of Analogue output and digital inputs.
- Power supply of RS485
●The analogue output signal has insensitivity of the zero about 5 mV, i.e. in zero input indication the
output is about 5 mV ( 0.05% in range 0 ÷ 10 V ) . Above that level the output operates linearly with
accuracy 0.003% FS.
III. ADVANTAGES
●High measurement accuracy – 0.003% FS.
●User selectable measurement speed - up to 80 SPS.
●Galvanic insulation of the measurement part from analogue output, digital inputs and outputs and
from RS485.
●Fast selection of up to 4 sets of parameters by combination of two digital inputs
●utomatic counter of ready doses.
●nalogue output that transmits the input process variable up to 0.003% linearity.
●MODBUS RTU communication by galvanically insulated RS485.
IV. DESIGNATION
MS8347 is suitable for including in dosing or batching systems by weight method. The input signal is
formed by bridge weight sensor which is supplied by the device. The sensitivity and the power supply of
the sensor are hardware fixed and have to be specified in the order code.
The analog output which is galvanically insulated from the input signal transmits the measured
process variable. Most commonly used is uniform signal 0 ÷ 20 m DC; 4 ÷ 20 m DC ; 0÷ 10 V DC which
has to be specified in the order code.
The device has four galvanically insulated from the measurement part digital inputs TARE, ZERO,
S1 and S2 which are designed respectively to tare and reset the measurement, and for selection of
specified in advance set-points.
The controller has three digital outputs, which are user configurable.
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V. TECHNICAL DATA
Analog input from bridge weight sensor
- power supply / sensitivity of the
sensor
5 V D / 1 ÷ 7 mV/ V
...................................(other)
- measurement accuracy 0.003%
- temperature stability 5 ppm/ °C
- conversion time without software
filter:
- fast / slow conversion
ccording to the configuration of order code
and from SYST/rS485/bit6 menu:
- 12.5 / 100 mS or 60 / 100 mS
- software filters:
arithmetic mean - of 1
level exponential – of 2 level
•rithmetic mean - 1 ÷ 16 measurements ( х10 ms)
•exponential - attenuation % - 0, 50, 75, 88, 94 %
Analogue output, DC 1
- transmitting the measurement 0 ÷ 20 m 4÷ 20 m 0 ÷ 10 V ....................... other
- conversion accuracy 0.003%
- temperature stability 5 ppm/ °C
- output forming time 60ms
- measurement part insulation 1500 V DC for 1 s
Digital inputs 3
Tarе, Zero/Start,
S1, S2-selection set of parameters-2
Low active level NPN to GND iso
minimum time to Tare and Zero tmin= 20 ms
Digital outputs 3
K1, K2, K3
•Relay 250 V C / 5
•Triac 250 V / 2
•NPN OC iso 500 m 70V transistor open collector,
insulated from measurement part, required an external
power supply. Insulation - 1500V DC for 1 s
- output forming time 20 ms
Communi ation MODBUS RTU RS485;
9600 bps; parity non/even; 1 / 2 stop
Power supply
Power supply 220 V C / 50 Hz 80 ÷ 250 V C / 50 ÷ 60 Hz 24 V DC
Display and Keypad
- display range 6 seven segment LED's 14 / or 10/ mm - 99999÷99999
- display format XXXXX, X.XXXX, XX.XXX, XXX.XX XXXX.X
program selectable, by decimal point
- display color red green transparent
- LEDs 4
- keypad Semi sensor keypad
Operating onditions
Operating temperature 0 ÷ 50 °C
Operating relative humidity без кондензация 0 ÷ 80 % rh
Protection class IP 40
Dimensions
Overall dimensions (WxHxL) 96 х 48 х 128 mm
Mounting Panel in hole 90 х 44 mm
Weight Max 400 g
Storage
Storage temperature
Relative humidity
-10 ÷ 70 °C
without condensation 20 ÷ 90 % rh
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VI. FRONT AND BACK PANEL. TERMINAL AND ELECTRICAL CONNECTION
●In 4-wire onne tion the relevant neighboring terminals 1,2 and 5,6 are shorted.
●The ontroller has four LEDs - К1, К2, LOCK and PROG. К1, К2 and LOCK light when
the respective outputs К1, К2 and К3 are active. The PROG LED light in programming
mode. The PROG LED flashes in B mode with the maximum weight reached if it is not
displayed.
Sele tion of parameter set (Prog 1 ÷ 4) for dosing by the state of external inputs S1, S2 onne ted
to GND iso / terminal 30 / -A tive 0 or off - 1
Input Terminal Prog 1 Prog 2 Prog 3 Prog 4
S1 29 0 0 1 1
S2 28 0 1 0 1
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SENSOR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25 24 23 22 21 20 17 16
GND
iso
AOut
S2 S1
Voltage
output Aout
V
Current output
active Aout
+-
mA
Current output
passive AOut
+
-
mA
Vext 9 36 V
External power supply
22
23
2324
19 18
U
UU
+
RELAY
OUTPUT
TRIAC
OUTPUT
NPN OC
insulated
output
Connection of inputs S1,
S2, Tare, Zero/Start in two
and more devices to one
signal source
30
29 28 27 25
30
29 28 27 25
DEVICE 1
DEVICE 2
+
-
-
...
Tare
Zero/ Start
Power supply
of the device
RS-G
A
B
Rs485
RS485
MODBUS RTU
Vexc+ Vref+
Vs+
Vs-
Vref-
Vexc-
In 4-wire connection
terminals 1, 2, and 5, 6
are shorted!

VII. OPERATING MODES
The controller is used as a part of controlling of processes for dosing of materials. Based on
measured input weight three digital and one analog output are formed.
They are supported 4 sets of operating set points(SP):
•Dose 1 / weight of switching K1 “dose 1”
•Dose 2 / weight of switching K2 “dose 2”
•Dose 3 / weight of switching K3 “dose 3”
Selection of one of the four sets when setting the set-points or in operating mode is set by
combination of the inputs S1, S2.
The choice of one of the four sets of parameters in the operating or setting mode is set by a
combination of the status of the inputs S1, S2 see item VI.
Using the parameter “ConFiG” (Confi uration word that defines the functionality of the controller
and represents an inte er, the sum of the values of seven bits) in the system parameters (see item IX), by
setting the value of Bit 7, the corresponding operating mode is selected:
7.1 MODE A - Dispenser / Mixer: “ConFiG” (Bit 7 = 0)
●Declines in the graph are eventual interference or vibrations. If the measured value has reached
a certain set-point the respective output become active and it is active whether the measured
value falls below the set-point. The output is active till the pressing the Stop button, timeout
tOff≠ 0 or reaching the last dose.
fter power supply voltage the device is waiting for start of Zero/Start input. n active level of this
input starts the process. K1 output becomes active. When reaching dose1, K1 becomes inactive and K2
becomes active. When reaching dose1+dose2, K2 becomes inactive and K3 becomes active. When reaching
dose1+dose2+dose3, K3 becomes inactive. Next start – in transition from inactive to active level of
Zero/Start input.
Sequence of switching Start→К1→К2→К3→Stop can not be changed.
The controller gaps one or more stages if the weight at start exceeds their set-points.
The whole process is limited in time by tOff parameter.
Start can be configured (parameter ConFiG) with (Bit 6 = 64) or without (Bit 6 = 0) taring.
It is permissible integration of inputs Tare and Zero/Start with which is obtained taring at
startup.
Start by active level of input Zero/Start when switching on the power supply voltage have to be
weighed against the option “tare at startup”. If the option is active or if inputs Zero/Start and Tare are
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dose1
dose2
dose3
output K3
K2
K1
tOff
OFF
OFF
OFF
Start
weight
time
MODE А

integrated can be used a pulse not constant input signal to avoid re-tare in power supply failure and
restoration.
On the front panel there is a Start/Stop button which is with analogous function or stops the
process if it is already started.
Inversion of the outputs is possible by parameter ConFiG(Bit 0,Bit 1иBit 2)..
Parameters dose1, 2 and 3 are dosing set-points (for example when mixing various ingredients)
7.2 MODE B - Comparator / The step ontroller /: "ConFiG" (Bit 7 = 128)
7.3
●Declines in the graph are eventual interference or vibrations. Above certain set-point the
respective output become active and it become inactive if the measured value is below the
set-point. At reverse there is no hysteresis.
Parameters dose1, 2 and 3 are switching levels.
fter power supply voltage a normal operating mode is activated. Three digital outputs are
formed.
Output K1 become active exceeding the weight “dose 1” and it become inactive at weight
less than “dose 1”. Its logic of action can be inverted by bit 0 of the “ConFiG” parameter.
Output K2 become active exceeding the weight “dose 1 +dose 2” and it become inactive at
weight less than “dose 1 +dose 2”. Its logic of action can be inverted by bit 1 of the
“ConFiG” parameter.
Output K3 become active exceeding the weight “dose 1 +dose 2 +dose 3” and it become inactive at
weight less than “dose 1 +dose 2 +dose 3”. Its logic of action can be inverted by bit 2 of the
“ConFiG” parameter.
Input Zero/Start has function “reset” of the tare (indications as after calibration)
In this mode the Start/Stop button of the front panel is not used.
7.2.1 MODE B (MAX MODE) - SHOWING MAXIMUM WEIGHT:
It is a sub-mode (MAX MODE) of basic mode B, so the configuration of the unit needs to be done
from parameter “ConFiG” (Bit 7 = 128) to basic mode B and parameter “rS 485” - Confi uration word
(Bit 6 = 64 ) for MAX MODE.
This mode B variant is intended for strength testing. The test consists of loading the test body with a
force / weight from initial PV to fracture or (PV_max).
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dose1
dose2
dose3
K3
K2
K1
MODE B
{
ON
ON
ON
ON ON
ON
ON
{
{

Status / Event After Power ON After a tive input Start / Zero
Display value PV PV_max
PROG LED flashes It does not light
Cal ulation of PV_max PV_max = 0 PV_max = PV
With Tare input a tive PV_max = 0 PV_max = 0
●The outputs function as in mode B.
●In this mode, the unit always calculates the maximum value in tact with the outputs.
If current PV> PV_max, then PV_max = PV.
●The Prog LED does not light when PV_max is displayed and flashes if PV is displayed.
●The readings can be changed by the START / STOP button on the front panel. It is accompanied by
PV / PV hi messages. This only changes the display and does not affect the accumulated PV max.
●When power is ON PV_max = 0 and the unit displays the current PV measurement.
●For each active Start / Zero input, PV_max assigns a PV value. (PV_max = PV)
●With each tare PV max = 0.
●Tare Input - If used, it must be Zero / Start independent via “ConFiG”, or it will only act after
Zero on the keyboard.
“ConFiG” (Bit 6 = 64 + Bit 7 = 128)=192 - Taring is independent of zeroing.
“ConFiG” (Bit 6 = 0 + Bit 7 = 128)=128, Tare will act after Zero on the keyboard.
Other features:
●Zero from the keyboard does not directly affect PV_max.
●The display filter does not affect the PV max but the other filters does.
●PV_max is available via MODBUS, as well as a bit for the corresponding MAX MODE
configuration (see table). Below
●PV_max is al ulated in all operating modes, but is only displayed in the urrent mode. In
others, it is only available through MODBUS.
VIII. OPERATING GUIDE
The controller supports up to 4 parameter sets with preset assignments of dose_1, dose_2
and dose_3. In the PARAMETER SETTING mode, the parameters for each set are set.
Before starting the dosing process or in the "P R METER SETTING" mode, the desired set
of parameters, namely Prog 1, Prog 2, Prog 3 or Prog 4, is selected using the inputs S1 and S2.
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8.1. SCREEN MENUS AND BUTTONS FUNCTION
Button Fun tion
Up
By pressin the button to chan e the on-screen menus in the followin sequence :
- Zero – Display the tare value
- Count – Number of doses
- Call – Calibration mode – it can be hidden
- Prog – Parameters setting
- Measure – Current measured value
5 sec. after usin the button, oes back to the main menu.
Left Go back to the main menu – Measure
Enter/Prog
According to currently selected menu this button has following functions:
Cuurent Menu Fun tion
Zero Zero Clearing the current tare
Count Clear Count Clearing the counter
Call Calibration Enter in calibration mode
Prog Programming Enter in parameters setting mode
Enter/Prog
+ Left
Tare in mode – Measure. The buttons pushed and hold up to stop the flashin the
messa e „Tare“.
Function Tarе , Zero and Call can be hidden by “CONFiG” parameter from SYSTEM
PARAMETERS menu
Start/Stop Start/Stop in mode А
8.2 TARE – / with buttons „Enter/Prog + Left” or with digital input /
The device can be tared by ‘Tarе’ input at any time except calibration procedure,
during setting the parameters and during filling for mode A. This also applies to the input
‘Zero/Start’ - clearing of the tare / filling start.
In mode B, for tare there is additional condition to go through 'Zero’ first (indications as
after calibration). This condition can be canceled by parameter in CONFiG. When taring t
he weight measurement starts 1 s after activation of the input and continues 1s. If this weight
is bigger than tArЕHi (% от HiL-t) the operation becomes invalid and flashing
inscription “tArЕEr” appears on the display.
If the button Enter / Prog is pressed at power on (activation of system parameters), tare is
performed unconditionally. If the measured weight> tArEHi message appears "tArEEr" to
power off.
8.3. RESET - Zero for mode В
This function is activated by the digital input or by keypad if this is enabled by the
configuration word “CONFiG”
When activating the respective input the tare value is reset. This function is not active during
calibration, during setting of parameters and during filling for mode A.
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8.4. CALIBRATION - Call
Before alibration the devi e has to be tared.
Reference weight has to be placed.
llow to establish the value of the display.
Enters “C LIBR TION” mode with button “Enter/Prog” .
Use the arrows to correct the displayed value under placed reference weight.
Press the “Enter/Prog” button to confirm and out of calibration.
Exit from “CALIBRATION” menu is performed automatically also 10 sec. after pressing a
button and the changed value is stored.
8.5. DOSES COUNTER – Count
The controller makes automatic reading of number of switching of К3 and stores them in
nonvolatile memory. The counter is incremented by 1 when the measured weight exceeds the
parameter doSE 3. fter reaching1000000 the counter is reset and continues its work. In the main
menu there is an option to reset the counter (see “Operating guide” point 1)
8.6. SETTING THE DOSING PARAMETERS - Prog
Setting of parameters – mode “Prog”. Changing the parameters is done through “Left” and
“Up” buttons. The current digit for change is shown by flashing dot, using “UP” button the
value is changed and using “Left” button the position of the flashing dot is changed. If the
change of sigh of the number is enabled it is changed when the flashing dot is on leftmost
digit.
doSE1 Dose1 / weight of changing of K1. Dimension and decimal point according to
maximum measured weight and resolution of the sensor.
In mode A it represents a dose, and in mode B – level.
ll features are in effect for the next two set-points.
doSE 2 Weight of changing of K2
doSE 3 Weight of changing of K3
fter setting of “doSE 3”, “End“ appears on the display. When pressing a button other than
“Enter/Prog” proceed to re-setup of set-points. By pressing the “Enter/Prog” exit from
setting mode.
8.7. ERROR MESSAGE
Error Fun tion
“ErrorA” Measurement error. It is necessary the connection of measuring sensor with the device to
be checked. Parameter ErLuvL determines the limit for activation of this message.
“ErrorU” The tare weight together with some of operating set-points exceed the maximum
measured weight by the device.
“tArEEr” Tare weight > t rЕHi (% from HiL-t).
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