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Manufacturer: ABB (Asea)
and mechanical drives
5 V at 0 mA)
It is designed for stable operation under varying load conditions and integrates seamlessly into turbine control
Yokogawa ALR121-S53 S1 Serial Communication Module Precision Control Module Manufacturer: ABB (Asea)Product Description The ALR121 S53 S1 is a high performance serial communication interface module designed for Yokogawa CENTUM VP and Yokogawa CENTUM CS 3000 Field Control Stations (FCS). It provides a reliable communication link between the controller and external subsystems such as FA M3 PLCs, power meters, motor protection relays, and other intelligent field devices. The module supports both RS 422 and RS 485 physical layers (software selectable),
