Description
The YOKOGAWA AMM42 is a 2-wire Transmitter Input Multiplexer Module designed for industrial automation applications.
It allows a single module to receive signals from multiple 2-wire transmitters and send a single combined signal to a control system like a PLC (Programmable Logic Controller) or DCS (Distributed Control System).
Here’s a breakdown of the YOKOGAWA AMM42’s key features and functionalities:
Functionality:
- Multiplexing: Connects up to sixteen 2-wire transmitters to a single output channel. This reduces the amount of wiring required compared to connecting each transmitter directly to the control system.
- Signal Transmission: Converts the 4-20mA DC current signal from each transmitter into a single, combined 4-20mA DC current signal representing a weighted average of the individual transmitter readings (depending on scan cycle).
- Data Acquisition: Enables the control system to collect data from multiple transmitters using a single communication channel.
Specifications (based on available information):
- Input Channels: 16
- Output Channel: 1
- Input Signal: 4-20 mA DC current loop
- Output Signal: 4-20 mA DC current loop (weighted average representation)
- Allowable Input Voltage: 40 mA or less
- Transmitter Power Supply: 23.5 to 24.5 V DC (output power limit: 60 mA or less)
- Input Resistance: 250 Ω (can be changed to 70 Ω when connected to a barrier)
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