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Basic type with accumulation value display weighing controller

Product Outline

F701-C is a general-purpose weighing controller that is compatible with all weighing systems. This is a practical device excellent in cost effectiveness, which is equipped with the final discharge function allowing high-accuracy feeding and discharging weighing control and the weighing sequence function essential to hopper and packing scales.

Installable is the interface that can be connected to PLCs or various peripherals such as BCD output, RS-232C and CC-Link.


Analog section
Excitation voltage 10V DC ±5%, Output current; within 120mA
(Up to 4 loadcells at 350Ω are parallel-connectable)
Zero adjustment range 0 to 2mV/V
Rough adjustment: Digitally controlled via rough adjustment circuit
Fine adjustment: Auto adjusting method via digital processing
Gain adjustment range 0.3 to 3.2mV/V
Rough adjustment: Digitally controlled via rough adjustment circuit
Fine adjustment: Auto adjusting method via digital processing
Min. input sensitivity 0.3μV/count
Accuracy Non-linearity: within 0.01% FS
Zero drift: within 0.2μV/°C RTI
Gain drift: within 15 ppm/°C
Analog filter Bessel low-pass filter (-12dB/oct.),
Selectable from 2, 4, 6, 8 Hz
A/D converter Speed: 200 times/sec.
Resolution: 24 bit (binary)
Setting section
Setting items – High limit, Low limit, near zero, SP1, SP2, Compensation, over, under, final
・ Comparison inhibit time, judging time, complete output time, adjust feeding time, auto zero times, judging times. Auto free fall compensation regulation, analog filter, tare weight
・ Weighing function 1, weighing function 2, weighing function 3, sequence mode, function key inhibit, digital filter, motion detect, zero tracking period, zero tracking range
・ Balance weight value, capacity, min. scale division, net over, gross over, DZ regulation value, function selection, gravitation acceleration (area number input), gravitation acceleration (acceleration input)
・ D/A output mode, D/A zero output weight, D/A full scale, RS-485 I/F, ID number, RS-232C I/F, external function selection, setting value LOCK, restriction on the tare subtraction function
・ Input selection, output selection, CC-Link I/F Occupied station & Transmission speed, CC-Link I/F Station No.
・ Average weight, maximum weight, minimum weight, population standard deviation, sample standard deviation, number of data (n), latest accumulation date, Maximum-minimum (R), option substrate
・ Span calibration, equivalent input calibration, password input, zero calibration
I/O section
External input signal ・ ON when shorted to COM terminal by contact (relay, switch) or non contact (TTL-level transistor or open collector output)
・ G/N, digital zero, tare subtraction ON, tare subtraction OFF, hold*, judge*, feed / discharge, start*, stop*, accumulation command*, accumulation clear*
* Signals for selection. Up to 4 can be selected.
External output signal ・ Transistor’s open collector output (Emitter = COM terminal); Output is LO when transistor is ON.
・ Near zero, SP1, SP2, SP3, under, over, Low limit, high limit, stable, weight alarm or error, go or complete, run or accumulation error
Interface ・ SIF: 2-wire type serial interface (standard); Interface to link with Unipulse printer or external display
・ 232: RS-232C communication interface (standard): Write (change)/read weight data, various statuses and setting values by commands from a host computer
・ BCO: BCD parallel data output interface (Optional): Parallel interface to transmit weight data to various peripherals
・ 485: RS-485 communication interface (Optional): Allows longer-distance communication than RS-232C. ID numbers are set, and multiple units of F701-C are parallel-connectable.
・ DAC: D/A converter interface (Optional); Interface to convert weight data to current signal and output it.
・ CCL: CC-Link interface (Optional); Links directly to PLC.
Display section
Display unit Numerical display (7 digits) with a character height of 10.4 mm by fluorescent display tube, Sub-display; character height 4.0 mm
Display value 5 digits, Sign; Minus sign displayed on most significant digit
Unit Selectable from t, kg, g, N, lb, none
General performance
Power supply voltage 100 to 240V AC (+10% -15%) (Free power supply 50/60 Hz)
Power consumption Approx. 15VA
Operating conditions Temperature: Working temperature range -10 to +40°C;
Storage temperature range -20 to +85°C
Humidity: 85% RH or less (non-condensing)
Dimensions 144(W)×72(H)×160(D) mm (protruding parts not included)
Weight Approx. 1.0kg
AC input cord (nominal rating: 125V) 3m 1
Mini-driver 1
FCN series I/O connector (with cover) 1
Jumper cable 2
Operation Manual 1
BCD output connector (when BCD output option is installed) 1
RS-485 connector (when RS-485 option is installed) 1
D/A converter connector (when D/A converter option is installed) 1
CC-Link connector (when CC-Link option is installed) 1


BCO BCD parallel data output interface
485 RS-485 communication interface
DAC D/A converter interface
CCL CC-Link interface
Number of mountable options 1

Optional accessories

CAAC2P-B3 AC Supply cord 3m
CAAC3P-CEE7/7-B2 AC Supply cord (Voltage resistance:250V) 2m
CN34 D-Sub 9p connector for RS-232C
CN50 FCN series I/O connector (with cover)
CN55 FCN series I/O connector (with diagonal cover)
CN70 D/A converter connector
CN71 RS-485・CC-Link connector
CN80 Analog I/O connector terminal
F720 mounting panel Mounting panel for F252/F280 to F701-C conversion
LB01-XH Lithium battery (with XH connector)


Product catalogue(PDF)
F701-C Product catalogue Dowmload
Operation manual(PDF)

External dimention
Support tools
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