How to Choose Pull-Up and Pull-Down Resistors for RS-485?

How to Choose Pull-Up and Pull-Down Resistors for RS-485?

The RS-485 bus is widely used in communication, industrial automation, and other fields. In practical applications, it is common to encounter questions about whether pull-up and pull-down resistors are needed and what resistance values are appropriate. Below, we will analyze these issues in detail. 1. Why are Pull-Up and Pull-Down Resistors Needed? 1) When the … Read more

Selection of Pull-Up and Pull-Down Resistors for RS-485

Selection of Pull-Up and Pull-Down Resistors for RS-485

The RS-485 bus is widely used in communication, industrial automation, and other fields. In practical applications, one often encounters the question of whether to add pull-up and pull-down resistors and what resistance values are appropriate. Below, we will analyze these issues in detail. 1. Why are Pull-Up and Pull-Down Resistors Needed? 1) When the differential … Read more

Detailed Analysis of Pull-Up and Pull-Down Resistor Selection for RS-485

Detailed Analysis of Pull-Up and Pull-Down Resistor Selection for RS-485

The RS-485 bus is widely used in communication, industrial automation, and other fields. In practical applications, one often encounters the question of whether to add pull-up and pull-down resistors and what resistance values are appropriate. Below, we will conduct a detailed analysis of these issues. 1. Why are Pull-Up and Pull-Down Resistors Needed? According to … Read more

When to Use Pull-Up and Pull-Down Resistors for RS-485?

When to Use Pull-Up and Pull-Down Resistors for RS-485?

Follow+Star Public Number, don’t miss wonderful content Source | Zhou Ligong The RS-485 bus is widely used in communication, industrial automation, and other fields. In practical applications, it is often encountered whether to add pull-up and pull-down resistors and what size of resistors is appropriate. Below we will analyze these issues in detail. Why are … Read more

Detailed Explanation of RS-485 Pull-Up and Pull-Down Resistors Selection

Detailed Explanation of RS-485 Pull-Up and Pull-Down Resistors Selection

The RS-485 bus is widely used in communication, industrial automation, and other fields. In practical applications, we often encounter the question of whether to add pull-up and pull-down resistors and what size of resistors is appropriate. Below, we will conduct a detailed analysis of these issues. 1. Why Are Pull-Up and Pull-Down Resistors Needed? 1. … Read more