Overview
Configured for dry contact signal acquisition in the DeltaV Electronic Marshalling CHARM I/O Subsystem, the Emerson KL2101X1-BA1 (KL2101X1-BA1 CHARM I/O Card) provides direct electrical interface processing for digital field input circuits. The module handles dry contact input signals through a 32 mA bus-powered CHARM architecture.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KL2101X1-BA1 |
| Brand | Emerson |
| Product Type | CHARM I/O Card (CIOC), Dry Contact Digital Input Card |
| System Platform | DeltaV Electronic Marshalling CHARM I/O Subsystem |
| Origin | USA |
| Weight | 0.3 kg |
| Dimensions | 3.4 x 13 x 13 cm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | Input power: 24 VDC at 2 A; Output power: 6.3 VDC at 3.25 A |
| Field Circuit Rating | 10 mA at 24 VDC |
| Bus Power Rating | 32 mA at 26.4 VDC open voltage |
| Hazardous Area Certification | II 3G Ex ec IIC Gc; FM19ATEX0173U; IECEx FMG 19.0019U; FM21UKEX0017U |
| North America Certification | CL. I Div. 2 GP. A, B, C, D; CL. I Zone 2 AEx/Ex ec IIC Gc |
| Shock Resistance | 10 g half-sine wave for 11 msec |
| Vibration Resistance | 1 mm peak to peak from 2 to 13.2 Hz; 0.7 g from 13.2 to 150 Hz |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Relative Humidity | 5 to 95% non-condensing |
Emerson CHARM Dry Contact Signal Processing
The KL2101X1-BA1 operates as a DeltaV CHARM I/O interface for dry contact field devices. It converts discrete contact states into digital input information for the control system while maintaining electrical separation between field wiring and system communication circuits.
Additionally, the CHARM architecture allows individual I/O channels to be assigned through electronic marshalling without traditional cross-wiring between field terminals and controller cabinets. The module supports channel-level configuration within the DeltaV system environment.
For Emerson process control applications, the module design follows CHARM subsystem requirements, including controlled field circuit power distribution and monitored digital input operation. Channel-to-channel isolation and loop protection characteristics depend on the installed CHARM configuration and associated hardware.
Frequently Asked Questions
Q: Can the KL2101X1-BA1 be removed or inserted while system power is active?
A: No. The unit cannot be removed or inserted with energized system power unless the installation area is confirmed as non-hazardous.
Q: Does the KL2101X1-BA1 require field calibration?
A: No. The module does not require calibration because it processes digital dry contact states rather than analog measurement values.
Q: Can users repair internal components of the KL2101X1-BA1?
A: No. The module contains no user-serviceable parts and should not be disassembled during operation or maintenance activities.
Field Installation Guidelines
Install the KL2101X1-BA1 according to the DeltaV Electronic Marshalling CHARM I/O Subsystem installation requirements. Verify the hazardous area certification markings before mounting the module in Zone 2 or Class I Division 2 environments.
Connect field wiring according to the approved DeltaV hardware installation manual. Keep dry contact signal wiring separated from high-voltage power conductors to reduce electrical interference.
Check terminal connections, grounding arrangements, and enclosure conditions before energizing the system. Ensure that environmental limits, including temperature, humidity, vibration, and airborne contaminant conditions, remain within the specified operating range.
Do not open, modify, or disassemble the module. Maintenance activities should only include external inspection, wiring verification, and system-level diagnostic checks.
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