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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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| Manufacturer | GE Fanuc Emerson |
|---|---|
| Product Type | Discrete Input Module |
| Product Line | RSTi PacSystem |
| Part Number | ST-1218 |
| Weight | 1.00 lbs (0.45 kg) |
| Input Type | Positive Logic |
| Input Voltage | 12/24 V DC (10.2-28.8V) |
| Mounting | 35mm DIN rail |
| Number of Inputs | 8 |
| Input Current | Up to 6 mA per Point at 28.8 V DC |
| Typical Input Impedance | 5.1 kΩ |
| Maximum Input Signal Delay | 3ms OFF to ON and ON to OFF |
| Typical Filtering Time | 1.5 ms |
| Output Connector | Spring Clamp Terminal Block |
| Maximum Internal Power Load | 35 mA at 5 V DC |
| Environmental Humidity | 5-90% 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.