What is the difference between 2 wire and 4 wire transmitter?

Industrial Automation
1

Explain how a 2 wire transmitter is different from a 4 wire transmitter

4

2 wire Transmitter

Supply (+24V DC) and Signal (4-20mA) in same Cable.

4 Wire Transmitter

Two cable for Supply (230V AC/+24V DC) and Two cable for Signal (4-20mA)