Overview
Configured for FOUNDATION Fieldbus H1 communication in DeltaV M-Series control systems, the Emerson KJ3242X1-BA1 (KJ3242X1-BA1 Fieldbus H1 Card) provides direct physical and electrical execution for field device network interfacing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ3242X1-BA1 |
| Brand | Emerson |
| Origin | United States |
| Product Type | Fieldbus H1 Cards |
| Weight | 0.2 kg |
| Dimensions | 4.1×12.5×10.5cm |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Local Bus Power: 12 VDC at 300 mA |
| Fieldbus Power | 9 to 32 VDC at 12 mA/Port |
| Communication Interface | FOUNDATION Fieldbus H1 |
| Hazardous Area Rating | II 3G Ex nA IIC Gc |
| ATEX Certification | FM12ATEX0090U |
| IECEx Certification | IECEx FMG 12.0035U |
| Additional Hazardous Rating | II 3G EEx nL IIC |
| Protection Rating | IP 20 |
| Relative Humidity | 5 to 95% non-condensing |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Shock Resistance | 10g 1/2 Sinewave for 11 msec |
| Vibration Resistance | 1 mm Peak to Peak from 2 to 13.2 Hz; 0.7g from 13.2 to 150 Hz |
| Terminal Block Key Position | D6 |
FOUNDATION Fieldbus H1 Communication Characteristics
The KJ3242X1-BA1 Fieldbus H1 Card interfaces FOUNDATION Fieldbus field devices through DeltaV M-Series hardware architecture. Moreover, the module supplies fieldbus communication channels with specified port power characteristics and supports installation in Zone 2 hazardous locations.
The card uses isolated field communication paths designed for process instrumentation networks. In addition, the module supports FOUNDATION Fieldbus connectivity requirements including digital device communication, field parameter exchange, and distributed field control execution.
For Emerson process control platforms, fieldbus integration requires correct loop design, channel assignment, and terminal block key configuration. Therefore, the rotary keying system prevents incompatible terminal block and I/O card combinations after installation.
The module supports hazardous area installation with Ex nA and Ex nL protection classifications. Furthermore, installation requires compliance with DeltaV Zone 2 hardware installation procedures and energy limitation assessments for nL applications.
Frequently Asked Questions
Q: Can the KJ3242X1-BA1 be removed or inserted while system power remains active?
A: The unit cannot be removed or inserted with energized system power unless the installation area is confirmed as non-hazardous. Only one unit may be removed or inserted at a time.
Q: What power supply does the Fieldbus H1 communication port require?
A: The fieldbus interface operates with 9 to 32 VDC fieldbus power at 12 mA per port.
Q: Does the KJ3242X1-BA1 require user calibration or internal adjustment?
A: No calibration is required. The unit contains no user serviceable parts and should not be disassembled.
Field Installation Guidelines
Install the KJ3242X1-BA1 according to DeltaV M-Series hardware installation procedures and hazardous area requirements.
Verify that the terminal block rotary key position matches the installed I/O card before operation. The specified key position for this module is D6.
Maintain proper field wiring practices by separating fieldbus communication cables from high-voltage power conductors. Use appropriate shielding and grounding methods according to site electrical standards to reduce electromagnetic interference.
Before removal or insertion, confirm hazardous area conditions and de-energize non-sparking field circuits where required. For Ex nL installations, complete the required I/O loop energy assessment for all connected energy-limited field nodes.
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