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GE Fanuc Emerson RSTi PacSystem ST-1218

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ST-1218

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The ST-1218 from GE Fanuc Emerson is a discrete input module designed for RSTi PacSystem applications. It operates with a positive logic input type and can accept voltages ranging from 10.2 to 28.8 V DC, making it versatile in various setups.

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Technical specifications for ST-1218

ManufacturerGE Fanuc Emerson
Product TypeDiscrete Input Module
Product LineRSTi PacSystem
Part NumberST-1218
Weight1.00 lbs (0.45 kg)
Input TypePositive Logic
Input Voltage12/24 V DC (10.2-28.8V)
Mounting35mm DIN rail
Number of Inputs8
Input CurrentUp to 6 mA per Point at 28.8 V DC
Typical Input Impedance5.1 kΩ
Maximum Input Signal Delay3ms OFF to ON and ON to OFF
Typical Filtering Time1.5 ms
Output ConnectorSpring Clamp Terminal Block
Maximum Internal Power Load35 mA at 5 V DC
Environmental Humidity5-90% Non-condensing
Operating Temperature-20°C to +55°C
Storage Temperature-40°C to +85°C

The GE Fanuc Emerson ST-1218, part of the RSTi PacSystem, is a specialized discrete input module. Designed for efficient integration, it operates on positive logic and can accommodate input voltages between 12 and 24 V DC, specifically within 10.2 to 28.8 V DC. This unit is designed to be mounted on a 35mm DIN rail for easy installation in control panels.

Equipped with 8 input channels, each input can handle a current of up to 6 mA when operating at a maximum voltage of 28.8 V DC. The typical input impedance is rated at 5.1 kΩ. When a signal is received, the module exhibits a maximum delay of 3 milliseconds for transitions from OFF to ON and vice versa, making it responsive for real-time applications. Furthermore, the typical filtering duration is specified at 1.5 milliseconds to minimize false signals.

The output is connected using a spring clamp terminal block, facilitating secure and reliable connections. The module's internal power load can handle peaks at 35 mA at a supply of 5 V DC. Regarding environmental parameters, the ST-1218 operates efficiently within a humidity range of 5 to 90%, provided conditions remain non-condensing. Its operational temperature range extends from -20°C to +55°C, while the storage conditions allow for temperatures as low as -40°C to as high as +85°C. This wide tolerance to temperature and humidity contributes to its suitability in diverse industrial environments.