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Weighing indicator for OMRON SYSMAC CJ1/CJ2/NJ

Product Outline

F158 is a weighing controller that allows direct connection to the base module of OMRON’s general-purpose sequencer SYSMAC α. Since inter-equipment wiring is not required, weighing system construction time can be reduced with serviceability improved. With the power supply shared, drastic cost reductions can be achieved.


Analog section
Terminal block input [+EXC, +S, -S, -EXC, +SIG, -SIG] 6-wire type (Ratiometric method)
Excitation voltage 5V DC ±5%, Output current; within 60mA,
Ratiometric method (Up to 4 loadcells at 350Ω are parallel-connectable.)
Input range 0.0 to 2.2mV/V
Zero adjustment range [Initial dead load] 0 to 2.0mV/V
Gain adjustment range 0.3 to 2.0mV/V
Min. input sensitivity 0.15μV/count
Accuracy Non-linearity: within 0.01% FS
Zero drift: within 0.25μV/°C RTI
Gain drift: within 15 ppm/°C
Analog filter Bessel low-pass filter (-12dB/oct.),
Cutoff frequency; 2Hz
A/D converter Speed: 100 times/sec.
Resolution: 16bit
Min. display resolution 1/10000
Display section
Display unit Front panel LED
Status display ・ RUN: Lights when the unit is initialized.
・ CAL: Lights when a calibration error occurs and flashes when it is being calibrated.
・ OVR: Lights when the weight alarm status is ON.
・ CMD: Lights when a setting error occurs.
Setting section
Back setting
DIP switch
・ 1: MD0[MODE0]
・ 2: MD1[MODE1]
・ 3: MD2[MODE2]
・ 4: MD3[MODE3]
・ 8: LK[LOCK](Calibration is prohibited when ON)
Combination of MD0 to MD3 determines operation mode.
M/C No. rotary switch High performance I/O unit M/C No. setting
Setting values ・ Calibration, setting method: Setting from setting remote console unit (C110, C120) or PLC.
・ Setting value storage: NOV RAM (Nonvolatile RAM)
・ Setting value protection: Setting operation can be locked to prevent unauthorized modifications of default values and calibration by malfunction (LOCK).
Setting items ・ Setting commands
[Setting values not stored] High limit, Low limit, near zero, Final, SP1, Before final, FF, tare reset, over, under
[Setting values stored by NOV. RAM] Digital filter, motion detect, zero tracking, balance weight, capacity, min. scale division, digital zero reg., gravitational acceleration compensation, net over, gross over, comparison inhibit time, Judging time, complete output time, decimal place, setting value LOCK, display frequency, FF CPS coefficient, average count of FF CPS, FF regulation, select final/under comparison mode, select HI/LO limit comparison mode, select near zero comparison, discharge control mode, select tare setting, AFC ON/OFF, complete signal output mode, over/under comparison mode
・ Operation commands
Zero calibration (registration of initial dead load), span calibration (registration of tilt), tare subtraction, tare reset, digital zero, digital zero reset
・ C110 and C120 allows monitoring of gross weight, net weight and tare weight, change and registration of setting commands, and execution of all operation commands.
General performance
Power consumption Approx. 400mA when 4 loadcells at 350Ω are connected (with a setting remote console unit connected)
Operating conditions Temperature: Working temperature range 0 to +40°C;
Storage temperature range -20 to +75°C
Humidity: 10 to 85% RH (non-condensing)
Ddimensions 34.5(W)×130(H)×101(D) mm (protruding parts not included)
Weight Approx. 330g
Driver for rotary DIP switch setting 1
Operation manual 1

Optional accessories

C110 Setting remote console unit, 4 keys, Cable length 0.5m
C120 Setting remote console unit, 12 keys, Cable length 0.5m



Product catalogue(PDF)
F158 Product catalogue Dowmload
Operation manual(PDF)
External dimention
Support tools
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