2   Features
2 - 2
Vision System FH/FHV/FZ5 Series User’s Manual (Z365)
2-1 Basic Mechanism for Measurements
An FH/FHV/FZ5-series Sensor Controller uses pre-built packages that contain all the processing tasks 
(for image input, measurement processing, displays, outputs, etc.) that are required for vision inspec-
tions.
You arrange these packaged processes in order of execution of the vision inspection.
An FH/FHV/FZ5-series Controller executes vision inspections according to user-created flows.
In the FH/FHV/FZ5, a flow that contains packaged processes that are arranged in order of execu-
tion of processing items and image processing is called a measurement flow.
Processing items and measurement flows can have more than one setting. You can switch the 
setting based on the scene to inspect. (Refer to Section 5 Creating Measurement Scenes)
 Concept of Measurement Processing
When the FH/FHV/FZ5 receives a measurement trigger from the PLC or other external device, the 
image input from a Camera, measurement processing, and output of measurement results (e.g., 
OK/NG judgement results) are executed in the order that those processing items are registered in 
the measurement flow.
• In the measurement flow, you can change the processing to execute based on the inspection results 
or input conditions of the vision inspection.
• You can use macro processing to execute pre-packaged processing items and functions in the FH/
FHV/FZ5 to create original programs. This allows you to create original measurement processes, dis-
PLC or other external device 
Image Input 
Defect 
Search 
Measurement flow 
FH/FZ5 
Output Unit 
Camera 
Measurement  
trigger 
The measurement flow is executed basically in 
order of the unit numbers. 
Measurement 
results are 
output. 
Measurement 
processing of 
the input image 
Image input 
from the 
Camera 
• Judgement 
result 
• Measured 
values