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COIL ADDRESS

Label

Address

Label

Address

K1 inv

1632

2 STOP BITS

1763

K2 inv

1633

ADC SPEAD 0-HI; 1-LO

1764

K3 inv

1634

ADC TYPE

1765

Disable Clbr

1635

ZARO/START IN

2104

Disable button TARE

1636

K3

2107

Disable button ZERO

1637

K2

2108

TARE in mode B : 1-NO, 0-YES

1638

K1

2109

MODE: 0-A; 1-B

1639

TARE IN

2528

WR DISABLE (ENABLE ONLY FROM

1760

S1

2530

BROADCAST DISABLE

1761

S2

2531

EVEN PARITY

1762

For MS8347, 

DEV ID = 5457 

Float parameters are in IEEC754 format.

For  

START/STOP

 and 

TARE

 by network „cmd“ parameter is used

- Record of 90 is equivalent to activation of input Start for ~ 50ms
- Record of 150 is equivalent to activation of input Tare for ~ 50ms
- Record of 32 leads to Stop
The value is automatically reset after record of a value.

Indexes W2,W3 and W4 ….. the relevant parameters, selected by the positions of both inputs 
for selecting of set-point S1 and S2. 

The parameter A1 of the device screen is displayed x1024, ie read over the network 1 and the 
menu of the device would be 1024.

Calibration in the network is the value of the reference weight is saved in PV.

The decimal point is decorative and the device doesn't scale. For example 111,22 appears on 
the display but PV will be written 11122. This is the same for all parameters with weight 
dimension.  

The parameters with time dimension also be read as a whole numbers without decimal point. 

For example 2.23 is readed 223

The response time of the device is determined by the ADC and the mode to be used, but it 
can't be < 10 ms.

When А1=1024 the readings are obtained in ADC code respectively 18 bit for ADS and 20 bit 
for AD. 

0 mV is the middle of the range, and the negative value is displayed 0

The parameter  A0 (offset of the measurement) is service informative.  A0 = 0.
Not to be changed!

Document revision  2015-08-17

15

Summary of Contents for MS8357

Page 1: ...COMPETENCE IN MEASUREMENT WEIGHT BATCHING CONTROLLER with Analog Output and MODBUS RTU communication MS8357 V 2 1 TECHNICAL DESCRIPTION AND USER MANUAL PLOVDIV 2015 Document revision 2015 08 17...

Page 2: ...elay 3 A 250 VAC NO SPST 3 NPN OC iso 70 mA 70V Power supply 0 1 80 250 VAC 50 60 Hz 24 V DC Sensor supply sensitivity 1 5 VDC 1 7 mV V 2 Other Communication 0 No 1 RS485 MODBUS RTU Speed Conversion 1...

Page 3: ...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 o...

Page 4: ...ime to Tare and Zero tmin 20 ms Digital outputs 3 K1 K2 K3 250 VAC 3 A SPST NO NPN OC iso 70 mA 70V transistor open collector unsulated from measurement part required an external power supply Unsulati...

Page 5: ...wire connection the respective positive and negative terminals of the Exc and Ref is given short at side of the unit All sensors must be connected before the device is set tare and calibration Shield...

Page 6: ...a termination resistor by Jumper R term next to the terminals of the RS485 VII OPERATING MODES The controller is used as a part of controlling of processes for dosing of materials Based on measured in...

Page 7: ...switching Start 1 2 3 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...

Page 8: ...t less than 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 but...

Page 9: ...ital input The device can be tared by Tar 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...

Page 10: ...p 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 numb...

Page 11: ...w 0 255 rS 485 Communication parameters For setup see below 0 255 Adr rS Modbus address 0 255 Flt Ar Average filter of the measured weight 1 1 5 Flt P Exponential filter of the measured weight 1 1 5 F...

Page 12: ...128 Setting the configuration word Each bit in the configuration word has weight value and in the configuration word have to be entered sum of the weight values Example for setting of ConFiG paramete...

Page 13: ...NICATION option The device is MODBUS RTU SLAVE with possibility for communication of 9600 bps by RS485 2WIRE line In standard performance without using a repeaters to one line can be connected up to 3...

Page 14: ...net Doze3W4 16 Long Unsignet DPoint 102 LSByte Unsignet Doze2 18 Long Unsignet FLT J 103 Integer Unsignet Doze2W2 20 Long Unsignet FLT AR 104 MSByte Unsignet Doze2W3 22 Long Unsignet FLT EP 104 LSByte...

Page 15: ...ted by the positions of both inputs for selecting of set point S1 and S2 The parameter A1 of the device screen is displayed x1024 ie read over the network 1 and the menu of the device would be 1024 Ca...

Page 16: ...sport poor storage incorrect usage forces of nature failure to follow instructions and when others made an attempt to remove the defects In these cases the defect can only be removed for a fee Service...

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