MM MI114 User Manual
MI114
Batching Controller
User Manual
MI114R2
www.meltrons.com info@meltrons.com
Millennium Mechatronics Limited, PO Box 59187, Dr, Mangere, Manukau, Auckland 2151
MI114 User Manual
1
Contents
Chapter 1 Profile ---------------------------------------------------------------------------------------------------------------2
Chapter 2 Main Parameters ---------------------------------------------------------------------------------------------------3
Chapter 3 Installation, Interface and Data Format -------------------------------------------------------------------------4
I. Diagram of Front and Back Function Buttons of Indicator ------------------------------------------------------4
II. Connection of Load Cell and Indicator ----------------------------------------------------------------------------6
III. Input and Output Interface -----------------------------------------------------------------------------------------6
IV. Large-screen Display Interface-------------------------------------------------------------------------------------6
V. Serial Communication Interface ------------------------------------------------------------------------------------6
VI. Analog output --------------------------------------------------------------------------------------------------------7
VII. Print and Storage----------------------------------------------------------------------------------------------------8
Chapter 4 Parameter Setting and Calibration-------------------------------------------------------------------------------9
I. [SEt 0] Enquiry Parameter----------------------------------------------------------------------------------------9
II.【SEt 1】General Parameters --------------------------------------------------------------------------------- 11
III. [SEt 2] Control Parameters ----------------------------------------------------------------------------------- 12
IV. Record Print [SEt 3] ------------------------------------------------------------------------------------------- 16
V. Calibration ----------------------------------------------------------------------------------------------------------- 16
Chapter 5 Operating Instructions------------------------------------------------------------------------------------------- 18
I. Startup and zero setting upon startup ----------------------------------------------------------------------------- 18
II. Zero setting manually ---------------------------------------------------------------------------------------------- 18
III. Tare ------------------------------------------------------------------------------------------------------------------ 18
IV. Setting of date and time ------------------------------------------------------------------------------------------- 18
V. Startup/stop ---------------------------------------------------------------------------------------------------------- 18
VI. Peak holding-------------------------------------------------------------------------------------------------------- 18
VII. Input and output function---------------------------------------------------------------------------------------- 18
VIII. Inquiry of common parameters -------------------------------------------------------------------------------- 19
Chapter 6 Explanations of Control Procedure---------------------------------------------------------------------------- 20
I. Mode 0（additive mode with 1 batching material） ----------------------------------------------------------- 20
II. Mode 1（subtracting mode of 1 batching material） --------------------------------------------------------- 21
III. Mode 2（additive scale for two materials） ------------------------------------------------------------------ 24
IV. Mode 3（catchweighing mode） ------------------------------------------------------------------------------- 25
Annex 1 Error Message Prompt -------------------------------------------------------------------------------------------- 29
Annex 2 Large Screen Data Waveform Diagram and Format --------------------------------------------------------- 30
Annex 3 Serial Communication－ Data Format of Command Response Mode ------------------------------------- 32
MI114 User Manual
2
Chapter 1 Profile
MI114 uses an advanced delta-sigma A/D converter to achieve a higher speed and higher accuracy for batching
or packing systems. The MI114 single chip microprocessor and high-speed Σ-△A/D switch technology
performs conversions and displays weight, with the maximum conversion speed of up to 80 times/second. The
display can be easily connected to the strain gauge based load cells to form batching scales, packing scale,
weighing control systems etc , where high-speed and high precision weighing are required.
Main functions and features of MI114 weighing indicator:
1. Integration of additive scale, subtracting scale, catch weigher function, with 3-channel input of external
control and 3-channel control output;
2. Standard asynchronous serial communication interface (RS232 or RS422/485), with flexible communication
mode (continuous send and command response);
3. 0-20mA/4-20mA (or 0-5V/0-10V) DA precision analogue output, adjustable;
4. Upper and lower limit alarm output setting;
5. High-precision A/D conversion with readability up to 1/30000;
6. 5-point nonlinearity correction;
7. When changing indicator, re-calibration is not required; and you can use the new indicator with
parameters of earlier indicator;
8. Scoreboard output;
9. Flexible peak holding function;
10. Storage, inspection and deletion function of information such as summation of weighing data and
accumulated frequency etc.; power-off data protection is provided;
11. It can be connected to a serial printer to print weighing record, accumulated amounts or parameters;
manual or automatic print is optional;
12. It has tare function; when the automatic control is activated, automatic tare can be selected;
13. Configurable digital filtering of A/D data
14. Selection of printing unit: kg, t, g, lb;
16. Real-time clock, calendar, which is not affected by power off;
17. Factory defaults recovery function;
MI114 User Manual
3
Chapter 2 Main Parameters
1. Type: MI114 weighing indicator
2. Accuracy: Class 3, n=3000
3. Input signal range: -19mV～ +19mV
4. Nonlinearity: ≤0.008%F.S
5. No. of connected load cell:
1- 8, 350Ω load cell
6. Power supply for load cell: DC：5V；350mA
7. Load cell wiring: 6 -wire
8. Display: Single-row 7-bit LED, character height 0.5”, and 11 status
indicating lamps
9. Division: 1/2/5/10/20/50/100 optional
10. Clock: Display real time and date.
11. Keyboard: Adopt 5 soft touch buttons
12. Scoreboard interface: Adopt serial output, 20mA constant current source signal.
13 Communication interface: Serial RS422/RS422/RS485, optional; (baud rate 1200～9600)
14. Print interface: Shared with serial port, and can be connected to serial printer.
15. Relay output: Capacity AC：220V; 0.5A
16. External input: Switch contact
17. Power supply: AC 110～230V, 50/60Hz 1A
18. Service temperature,
0～40℃；≤90％RH
19. Storage and transportation
temperature:
-20～50℃
20. External dimension: Housing: 150×76×85mm (width × height × depth)
Panel: 172×93×3mm (width × height × thickness)
21. Dead weight: Approximately 1.2kg
MI114 User Manual
4
Chapter 3 Installation, Interface and Data Format
I. Diagram of Front and Back Function Buttons of Indicator
Figure 3－1 Diagram of Front Function Buttons
The meanings of the 11 indicating lamps on display panel are as follows (from left to right):
Power: Power supply indicating lamp
Run: Automatic operation status
>0<: Zero zone indication
Net: Net weight status
Stable: Stabilization status
IN: Three input indications (1, 2, 3 represents three inputs respectively)
OUT: Three output indications (1, 2, 3 represents three outputs respectively)
The five buttons on the display panel have the following functions:
Symbol
Button name
Meaning
[ F1 ] button
Press [F1] and [Operation] buttons simultaneously to examine the inner
code
[Run Stop]
button
It also serves as stop button. It is return button in parameter setting status
[-0-]
button
It is the shift key in parameter setting status.
[-T-] button
It is the “value increase” button in parameter setting
[Print Enter]button
It is the print button for displaying weighing value
5
L N
GND
l10-230V 50/60Hz
01
02 03
+1
2V 11
12
13 OV
AC power
s
upply Output terminal
lnput terminal
CAL
ON OFF GND RxD TxD Y Z B A OP+
DP-
AO
I
A02
.
I
Calibration switch
Communication/Large-screen/
Analog output i nterface
EX+SEN+
SEN-EX-SlG+S I G-GND
Load cell interface
Figure
3-2
Diagram
or
Back Function Buttons
485/232
jumper
JP1
...
485/232
jumper
J
P2
.,
GND R:><.D l:><D
Bv yA
B Z '\'
Analog jumper J MS ., Ana
log jumper
JM3.,
Analog
jumper JM4 .,
Figure 3 - 3 Diagram of Main Board Jumper and Calibration Switch
All interfaces in Figure 3-2 are described in detail below. P lease read the following detailed interface
description while referring to the interface position in Figure 3-2.
6
MI114 Manual
II. Connection of Load Cell and Indicator
The connection with load cell adopts the six wire system connection mode. Please refer to the interfaces in the
Diagram of Back Function Buttons, Figure 3-4. Detailed definitions are given below:
EX+: Positive load cell excitation
SEN+: Positive compensation
SEN-: Negative compensation
EX-: Negative load cell excitation
SIG+: Positive signal
SIG-: Negative signal
GND: Ground
Tip: If a 4 load cell cable is used to connect to MI114, the pins of “EX+” and “SEN+”, “SEN-” and “EX-
” in Figure 3-4 must be short-connected. Otherwise, the indicator cannot be calibrated and weigh
normally.
Ⅲ. Input and Output Interface
The indicator has three channels of optical
isolation input and three channels of relay
output. For interfaces, see Figure
3-5.
① The three outputs are connected to
the external system respectively according to
requirements. O1, O2, O3 terminals have
constant ON built-in relay, which can connect the controlled system directly to the two terminals of
corresponding interface.
Note: Switch contact; effective close control; contact capacity AC: 220V; 0.5A
② The access mode of three inputs is by connecting I1, I2, I3 with +12V, i.e. signal can be entered at the
input terminal. 0V terminal is prepared for customer’s special requirements.
The meaning of interface is different according to different modes. For detailed definition, please see
Chapter 5 Section 7 of this manual.
Note: The +12V terminal and 0V terminal cannot be short connected.
IV. Scoreboard Display Interface
For large-screen interface, see Figure 3-6:
DP+, DP- in the Figure are connected to
the large-screen. For the detailed
communication format, see Annex 2.
V. Serial Communication Interface
Serial communication interface uses RS232C (standard product). According to customer demand, the
RS485 interface can be selected through jumper (the output format is the same with RS232C). For the details
of the interface pin connection, see Table 3-1. For the jumper selection mode, see Table 3-2.
7
MI114 Manual
Communication
interface
Jumper Selection
JP1 JP2
RS232C
(Factory defaults)
Left Left
RS485C
Right
Right
Table 3-1 Pin details Table 3-2 Selection of Communication
MI114 indicator can select “continuous send” or “command response”
mode:
Continuous send mode:
The transferred data is the current weight (gross weight or net weight) displayed on the indicator. Each
frame of data is composed of 12 groups of data. The format is as follows:
X
th
Byte
Contents and notes
1
02(XON) Start
2
+ or - Sign bit
3
Weighing data High-order bit
：
Weighing data ：
：
Weighing data ：
8
Weighing data Low-order bit
9
Decimal scale From right to left (0～4)
10
XOR check High four-bit
11
XOR check Low four-bit
12
03(X0FF) End
NOR＝2⊕3⊕……8⊕9
2. Command response mode: For detailed format, please see Annex 3
VI. Analog output
MI114 indicator can choose 3 analog output modes: 0～5V, 0～10V voltage signal output and 4~20 mA
current signal output (It can be also be adjusted to 0~20 mA . The electric current loop adopts the internal
electrical power supply mode, the output mode is selected by jumper JM3～JM5 (See Figure 3-3) on the
main board. For the setting mode, see Table 3-3. The factory setting is 4~20 mA electric current loop. The
switch of analog output is controlled by the C bit of parameter [H ABC] under parameter [SET 1].
Table 3-3 Setting of Analog output
Analog output
Selection of jumper
JM3
JM4
JM5
4—20mA (Factory defaults)
Up
——
Down
0—5V
Down
Right
Up
232 Communication
485 Communication
GND: Grounded
RXD:
Receiving end of
indicator
TXD:
Sending end of
indicator
A: RXD+
receiving positive data
B: RXD-
receiving negative data
Z: TXD-
sending negative data
Y: TXD+
sending positive data
8
MI114 Manual
0—10V
Down
Left
Up
Calibration method for analog output
The zero point value of analog output and full scale value are in direct proportion to corresponding DA
code (See Table 4-3, instructions of [SEt 1] parameter 12 and 13). The parameter 12 and parameter 13 can be
corrected by calculation according to the analog output error.
Note: At the mode of voltage output, short circuit of the analog output terminal is strictly
prohibited, and the load of 4-20mA electric current loop output cannot be disconnected, or otherwise
the analog output circuit may be damaged.
VII. Print and Storage
Print
The serial port communication RS232 connection mode is adopted. By means of selecting connection to
serial printer in indicator parameter Set 1, the weighing data can be printed through the serial port. Hand
print and automatic print are available, which are introduced below:
1. Hand print
Single print: In weighing status, press “Print/Enter” button to print the current time, date, net weight, tare
weight, accumulated frequency and accumulated weight.
Print record: At the mode of 0, 1, 2, all weighing records, including the time, date, net weight, tare weight,
accumulated frequency and accumulated weight for each weighing, can be stored and printed. For concrete
operations, see [Set 3].
2. Automatic print
After selecting printer and automatic print in parameter settings, information such as the current time,
date, net weight, tare weight, accumulated frequency and accumulated weight will be printed automatically
when a process is completed each time during the automatic control process.
Note: New prints cannot be made until it returns to zero after every print; if printer or hand peak
holding function is not selected, the hand print function is invalid; when communication in [Set 1] is not
selected or communication is selected but the serial printer is not selected, print is not valid; when the set baud
rate is not 9600, [Err P] will be prompted.
Storage
Storage is often used together with print, and is divided into hand storage and automatic storage.
Automatic storage should be enabled in parameter settings. Attention must be paid to several points during
storage:
1. Hand storage cannot be conducted in catch weighing mode.
2. The next storage cannot be executed until it returns to zero after each time of storage.
3. After the control mode (i.e. additive scale, subtracting scale, catch weigher) is changed, it needs to enter
the parameter setting 0 to eliminate the accumulated results, or otherwise an error may occur.
9
MI114 Manual
Chapter 4 Parameter Setting and Calibration
If there is no special instruction for parameter setting, the button functions are as follows:
[F1] button: exit from parameter setting
[Operation] button: the current setting is not saved, and return to the previous parameter
[Zero setting] button: move the current flicker bit
[Tare] button: modify the current flickering value
[Enter] button: make sure to save the current parameter setting, and enter the next
parameter setting
Press [F1] button and [Zero setting] button simultaneously to enter parameter setting selection
interface. The setting catalogues are:
【SEt 0】 ： enquiry parameter;
【SEt 1】 ： general parameter;
【SEt 2】 ： control parameter;
【SEt 3】 ： print record (no such function in catch weighing mode)
[Note] Please note the instruction in remarks for each parameter. Part of parameters will only be
displayed under specific mode or conditions.
I. [SEt 0] Enquiry Parameter
Table 4-1 Non-Catch Weigher Mode
Para-
meter
Indicator
Display
Parameter Specification
Remarks
1 [n ****]
Accumulated frequency
It can only be inquired, but not changed.
2 [A******]
Accumulated weight
It can only be inquired, but not changed.
3 [dEL *]
Delete the selection of
accumulated frequency and
accumulated weight
0: no-operation
1: execute deletion operation
Loading...