Product Name:

Yokogawa + alr121-500 serial communication module

Product Description:

The module acts as a serial communication interface in Yokogawa Electric control systems or industrial automation applications. It supports serial communication between various subsystems such as field control units (FCU) and FA-M3 controllers.

Main functions:

Supports serial communication between the FCU and other devices (RS-232C, RS-422 or RS-485).
Point-to-point and multipoint communication configurations are supported, depending on the protocol used (RS-485 allows multipoint).
Provides half-duplex communication (data flows in one direction at a time).

Product parameters/Specifications:

Compatible Field control units: Compatible with Yokogawa Field Control Unit (FCU) models such as AFV10, AFV30, AFV40, AFF50, ANB10, ANB11 and ANR10
Stop bit length: Supports one or two stop bits
Parity check: Supports none, even, and parity check
Maximum transmission distance: 15 meters for point-to-point connections (RS-232C) and 1200 meters for extended multipoint connections (RS-485)
Installation: Installed on the field control unit mentioned earlier [1].
I/O cabling: Requires specific Yokogawa cables (AKB131, AKB132, AKB133, AKB134) with 3 pairs of shielded signal transmission
Power consumption: about 0.5A