Genuine New Yokogawa ALR121-S00 Serial Communication Module In Stock

Product Description

The Yokogawa ALR121-S00 is a serial communication module designed for industrial applications. It supports both RS-422 and RS-485 interfaces, which are commonly used in environments requiring robust communication over longer distances or in noisy electrical conditions.

Interface Specifications

• ALR111: Uses the RS-232C standard for point-to-point communication.
• ALR121: Supports RS-422 and RS-485 standards, allowing for either point-to-point (RS-422) or multipoint (RS-485) connections 

Connection Methods

• ALR111: Point-to-point connection only.
• ALR121: Can be configured for point-to-point communication using RS-422 or multipoint communication using RS-485.

Communication Functions

• Half-duplex operation mode, meaning data can flow in both directions but not simultaneously.

Synchronization Method

• Start-stop synchronization method is utilized to ensure accurate data transmission between devices.

Transmission Speed

• Available baud rates include 1200, 2400, 4800, 9600, 19200, and 38400 bits per second (bps). The actual speed depends on the specific communication function, subsystems involved, and chosen connection method.

Transmission Details

• Transmission Code: ASCII or binary formats are supported.
• Character Length: 7 or 8 bits per character.
• Stop Bit Length: Either 1 or 2 bits can be selected based on requirements.
• Parity Check: Options include no parity, even parity, or odd parity for error checking.

Additional Features

• After completing data transmission, there is a lag time of 1 ms before the receiver can start accepting new data 
• Transmission Distance: Up to 15 meters for RS-232C and up to 1200 meters total extended length for RS-422/RS-485 when using appropriate wiring.

Installation and Wiring

• The module can be mounted on several types of racks including ANB10, ANB11, ANR10, AFF50, AFV10, AFV30, and AFV40.
• I/O wiring uses cables such as AKB131, AKB132, AKB133, AKB134, or shielded cables like AKB161 or AKB162.
• Connections are made via D-sub-9-pin female connectors or terminal blocks secured with M4 screws.

Electrical Characteristics

• Current Consumption: 0.5A.
• Weight: Approximately 0.3 kg.