YOKOGAWA ALP121 Analog input module

YOKOGAWA ALP121 Analog input module

Specific Parameters​

Core and Signal Parameters​

Module Type Industrial-grade multi-functional analog input module​

Series CENTUM VP Distributed Control System (DCS) I/O Module Series​

Number of Input Channels 16​

Supported Signal Types Voltage, current, thermocouple, RTD (Resistance Temperature Detector)​

Input Range ±10V, ±5V, ±2.5V, ±1.25V, ±625mV, ±312.5mV​

Resolution 16-bit​

Sampling Rate Up to 1ms/sample​

Measurement Accuracy ±0.1%FS​

Output Signal 4-20mA DC output​

Calibration Method Software calibration​

Electrical and Communication Parameters​

Power Supply Voltage 24VDC​

Maximum Current Consumption 0.7A​

Communication Interface EIA-RS-485 compliant​

Communication Protocols PROFIBUS-DP V0, V1​

Transmission Rate 9600bps to 12Mbps​

Communication Port D-sub 9-pin (female), 1 port​

Maximum Transmission Distance 1.2km (at 9600bps)​

Signal Isolation Isolated between field and system​

Environmental and Reliability Parameters​

Operating Temperature Range 0°C to 55°C​

Storage Temperature Range -40°C to 85°C​

Relative Humidity 5% to 95% (non-condensing)​

Protection Class IP20​

Overall Dimensions 175mm×100mm×50mm​

Weight 0.3kg​

Redundancy Support Dual redundancy configuration​

Installation Compatibility AFV30, AFV40 field control units; ANB10, ANB11 bus node units​

Product Performance​

High signal acquisition accuracy, 16-bit resolution combined with ±0.1%FS accuracy capturing subtle signal changes​

Strong signal adaptability, compatible with multiple analog signal types and wide input range covering complex measurement and control needs​

Excellent communication efficiency, wide-range transmission rate support enabling real-time data interaction and remote control​

Strong environmental tolerance, EMC design and wide temperature operating range resisting electromagnetic interference and temperature fluctuations​

Good system compatibility, seamlessly connecting with CENTUM VP DCS and supporting bus node unit expansion​

High operational reliability, dual redundancy configuration and signal isolation design ensuring uninterrupted continuous operation​

Convenient maintenance, supporting hot-swapping and software calibration reducing downtime maintenance costs​

Strong integration flexibility, modular design adapting to multiple installation carriers simplifying system construction process​