User Manual
Table Of Contents
- V670 Series
- Introduction
- Contents
- Structure of This Manual
- Chapter 1 Features and System Configuration
- Chapter 2 Specifications and Performance
- Chapter 3 Setting and Installation
- Chapter 4 Functions
- Chapter 5 Control From Host Device
- Chapter 6 How to Use Self-Execution Mode
- Chapter 7 How to Use Programming Console
- Chapter 8 From Startup to Run
- Chapter 9 Characteristic Data Depending on Operating Condition (Reference)
- Appendix
9-4
When you install the tag, take into consideration the influence of back metal.
If there is any metallic material behind the tag, the communication range deteriorates. The characteristic of communication range dete-
rioration depending on the distance between the tag and back metal of tag (the same size as antenna) is shown below.
• Model V670-H11 Model V670-D13F03
Distance between tag and metal (mm)
Communication range ratio (%)
* Assume that the communication
distance without metal is 100%.
* Assume that the communication
distance without metal is 100%.
Distance between tag and metal (mm)
Communication range ratio (%)
Metal: Aluminum
Metal: Iron
Antenna
Communication
range
Tag
Metal
Distance
between metal
and tag
9-4 Influence of Back Metal of Tag (Reference)