I-SYS

Thiruvanmiyur, Chennai, Tamil Nadu

The I-SYS 4-20mA loop transmitter PCB is user configurable. User configurable setpoint1 &setpoint2 values can be entered into the controller using the keypad & seven segment display.The controller will deliver linear current output from setpoint1 load value (4mA) to setpoint 2 load value (20mA). Make sure that the setpoint2 value is greater than setpoint1 value. The 4- 20mA loop transmitter (DAC) PCB receives weight data from R5.0v1 weighing scale PCB as serial UART data. The DAC PCB can be configured to 2400 or 9600 bauds in 8N1 format. The data output speed from R5.0V1 PCB is 10 data samples per second. During normal operation, the display connected to the DAC PCB will show the serial weight data received from the R5.0V1 PCB. During a fault condition, the DAC PCB may report any of the two types of error. The loop error led will be lit when the current loop is open. To reset this error indication, press key K4. The communication error LED will be lit when no communication or UART DATA is received by the loop controller to update the DAC IC. This LED will automatically be reset upon reception of UART DATA.
To configure the machine, connect the power supply. Now press key (K4) and with the key (K4) pressed power on the DAC PCB. Make sure that the weighing PCB (R5.0V1) is already powered up and transmitting the UART DATA. The default baud rate of the weighing PCB supplied with the DAC PCB is 9600 BPS.

We have a team of professionals who keep their vigil eyes on the entire lot that is stored in the warehouse. This unit keeps the lot free from the factors like duct, rain, sunlight, etc. Our assurance towards providing damage-free products to the clients is achieved through our use of quality packing material. In addition, we maintain streamlined packaging system supervised by experts.

We have high-tech in-house amenities available to make sure that the range of products we offer are kept safe till final delivery. Our team experts ensure that the warehouse is free from moisture, rainwater, sunlight, etc. Our assurance towards providing damage-free products to the clients is achieved through our use of quality packing material. In addition, we maintain streamlined packaging system supervised by experts.

The RTC & Printer Interface PCB is connected to R5.0V1 weighing scale PCB & a serial printer via an adaptor PCB using 10pin FRC cable. The Real Time Clock (RTC) PCB is connected to this board as shown in the schematic above. Make sure the +5V, ground, SCL, SDA pins are connected as per diagram. Wrong connection may damage the RTC.
The RTC & Printer Interface PCB reads the weight data (from R5.0V1 PCB) & time data (from RTC PCB) simultaneously. This time stamp is printed out on the serial printer if ENTER key(K1) on this board is pressed. This data can also be sent to a PC via RS232 interface card not shown in the diagram. Useful header data like address or slogans can be entered & stored in the EEPROM of the RTC & Printer Interface PCB. This information may also be printed along with time stamp. The customer has to enter the ascii value of the header data by looking into a ascii table. For more assistance contact the manufacturer.

Microcontrollers & RTC used

• R5.0V1 weighing scale PCB – Renesas 16bit microcontroller.
• RTC & Printer Interface PCB – ST Microelectronics STM8S 8 bit controller.
• RTC PCB – RTC Chip – NXP(Philips) PCF85163

The R5.0V1 Weighing Scale PCBs are designed using advanced 16bit Renesas Microcontrollers. Our PCBs are manufactured using automatic pick & place robotic machines, bring you world class standards in performance & reliability. Our controllers incorporates high-performance selectable Digital filter Algorithm for accurate & stable measurement of weight reading. Additional Features

• Piece Count
• Price Computing
• Person / Coin Weighing
• Peak load indicator
• Set-point out-put / control of relays
• Yarn Weighing

We are one of the most trusted suppliers of Electronic Weigh Bridge PCBs. Our PCBs incorporates Hi-Performance Digital Filter Algorithm using Advance 16bit Renesas Microcontrollers, providing you with very high level of reliability, accuracy, stability in weight measurement. Features

• Supports 10 Load-Cells or more. 1 amp load-cell Excitation power supply.
• Tank Weighing Option.
• Individual Zero-Calibration, Load-Calibration, Fine Tuning Calibration.
• Selectable Digital Filters. Highly Stable weight readings.
• Serial Communication with Configurable Baud rate, parity, data bits, data string.
• Customized P.C software available.

The PC-01 PCB is a 3 wire interface piece counting indicator PCB. The RS232 RX pin, GND or BAT-(battery negative pin) and BAT+ (battery positive pin) are the only 3 pins that are required for the working of this PCB.
This PCB receives RS232 weight data form R5.0V1 jewelry precision weighing scale PCB supplied to you along with it. The TTL UART signal from the R5.0V1 PCB must be level shifted to RS232 signal (via an interface PCB no.460513 also supplied to you in the kit) before connecting to PC-01 PCB.

Configuring the PC-01 : To enter configuration setup, press key1 and then power ON the PCB. The left corner display will show “PArA”. Next, Press key4 button to enter into the parameter settings. The display will show “bAU”. It means the baud rate for serial communication.

• BAUD = 0 means 9600bps.
• BAUD = 1 means 2400bps.
• The default baud rate for the PC kit is 9600 bps.

After entering the appropriate value for baud rate, press the key4 button.

• It will next display “PS”.
• This means power save mode.
• PS = 0 means power save mode active. This is the default setting.
• PS = 1 means power save deactivated.

After entering the appropriate value, press the key4 button. It will show “PArA” again. Press increment button key3. It will show “CAL”, meaning calibration for piece count. Make sure that PC-01 PCB is receiving serial data from R5.0V1 PCB. This is important for the calibration routine. Next press key4. It will show “ItEn”, meaning item number. Only 10 item memory is provided & their  value can from 0 to 9.ITEM = 0 TO 9
Choose appropriate item number and press key4. Now the PC-01 PCB will display the received weight data. Press key4 to accept the weight data received from the R5.0V1 weighing scale. Next press key4. The display will now show all zeros. Use key3 & key2 to enter the number of pieces that were kept on the weighing machine and then press key4 to store this calibration value in controller’s memory. It will show “CAL” again. 10 different calibration values can be stored for 10 different items. The name of the items is item0 to item9. Once you have calibrated the item piece count, you can switch OFF and ON the PC-01 PCB. In the normal operation mode press the appropriate key button to change the item piece count measurement.
The PC-01 PCB displays the received weight on the 6 digit display which is at the left corner of the board. The center 5 digit display shows the unit weight of a single piece. The right 4digit (also available in 5 digits) display shows the total number of pieces measured.
Note: If you are using the reverse battery protection circuit in R5.0V1 weighing scale PCB make sure a battery is connected to the PC-01 PCB for normal functioning of PCB. Sometimes the R5.0V1 PCB will not power-up the PC-01 PCB without battery. If you still want to use the PC-01 PCB without battery, yo  can do so by connecting R5.0V1 PCB in unprotected mode
PC-01 PCB has only a simple diode shorting protection for reverse battery. Hence make doubly sure to connect the right battery polarity. Wrong polarity may damage the PCB permanently & carries NO guarantee. Use of 0.5Amps fuse as protection is highly recommended.

We offer highly efficient Optically Isolated I/O Relay Card for our clients. Our Optically Isolated I/O Relay Card are very useful plug-in cards to our weighing scale board. One can easily control other electrical systems like valves, motors, etc. using our weighing scale board. Our Optically Isolated I/O Relay Card helps one to interface weighing board safely with the outside world. We offer Optically Isolated I/O Relay Card at affordable prices.

Placed in Chennai(India), ours is an emerging company serving the clients with broad range of products. We have hired proficient quality analysts having rich domain experience who make sure that only defect-free range will be delivered to buyers.

 

Details

• The SDK-V2 weighing scale PCBs are designed using advanced 8bit controllers from STMicroelectronics.
• Our PCBs are manufactured using an automatic pick & place robotic machines bringing you world-class standards in performance & reliability.
• Our controllers incorporate high-performance selectable digital filter algorithm for accurate & stable measurement of weight reading.

The Kit contains the following items

• Check Weighing Controller PCB R5.0V1 – 1no.
• 0.56” Red display – 1nos.
• 4-input Keypad with connector – 1nos.
• Optically Isolated Relay PCB – 1no.
• 0-12V/1Amps transformer – 2no.
• 0-15V/1Amps transformer – 1no.

The check weighing system provides 3-relay output for indicating 3 weighing regions. They are the low weight, normal weight & high weight. You can connect tower lamps & buzzer alarms to the appropriate relay output for visual & audio annunciation. Two set-point values are needed to be entered in the controller for creating the three zones.

Calibration of Check Weighing PCB : The calibration procedure for check weighing PCB is similar to R5.0V1 weighing scale PCB.Parameter settings in Check Weighing

 

Controller PCB : Please set the “PSEL” value in (“PARA”) the parameter setting to “1” to activate the set-point or check weighing functionality.

 

Our Check Weighing PCBs are designed using advanced industrial grade 16bit Renesas microcontrollers. They are used for accurate and fast weighing and checking of packaged commodities in a process plant and in a production line. RS232 interface to the check weighing PCB allows for data logging & printing of packing weight information. Customized programming to suit user specific relay control outputs can also be delivered.

Some of the salient attributes of our Coin Weighing Scale PCB that makes it highly popular among buyers are its simplicity to interface, reliability. You can get information of the amount of coins (money) collected every time the machine is switched on. You can also switch modes between normal weighing & coin weighing to easily check for accuracy of weight measurements. There is also provision for printer interface.

We offer excellent quality Jewellery Scale PCB for our valuable customers. Our Jewellery Scale PCB is extensively used in jewelley shops where high accuracy of weighing is required. Our Jewellery Scale PCB offers a precision of +-1, 35, 000 counts and 600grams/10 milli gram. Our customers can avail Jewellery Scale PCB from us at attractive prices.

Serial Communication: A 10 pin FRC box header with TTL UART Pins are available for serial communication. RS232 adaptor PCBs as shown below are available for easy interface for connecting to a PC.

The communication settings are as follow :

• Data length: 8 data bit no parity one stop bit, 7 data bit odd parity one stop bit, 7 data bit even parity one stop bit.
• For customized string format, please contact manufacturer. Optically isolated RS232 /485
• interface PCBs are also available with us.
• The data string will be a continuous dump data or transmit on request. The data rate is 10 data strings per second for continuous dump.

LED Display: 6 digit Common anode seven segment display. A 16pin FRC box connector is provided on the PCB for this purpose. Apart from segment (weight) display it will also drive a LED that indicates the presence of mains supply. Buzzer annunciation: The buzzer is used for multiple annunciations. A few are mentioned below :

• Beeps with scrolling banner display.
• Beeps while TARE key is pressed.
• Intermittent & continuous beeps for set-point1 & set-point2 function.

We are one of the most trusted Suppliers of Electronic Weighing Scale PCB. Our Electronic Weighing Scale PCB is suitable for table tops, platform scales, and weigh bridges. Electronic Weighing Scale PCB offered by us provides an accuracy of 30 kg/1 gram and +-65, 000 counts. We offer Electronic Weighing Scale PCB at an attractive price. Additional Features :

• Piece count
• Price computing
• Person / coin weighing
• Peak load Indicator
• Set-point out-put / control of relays

Customers can provide their specifications to us in regards to the packaging of the products as we serve customized packaging requirements. We ensure damage-free products at customer's end. With the assistance of our safe and automatic warehousing system, we are able to store the entire lot of products in a secured manner. The entire lot is cross checked at regular basis for ensuring complete safety of the products.