Description
Product Introduction
In a process plant, drives, remote I/O stations, and package equipment may communicate over PROFIBUS DP rather than through individual hardwired signals. The Emerson SE4022 provides the PROFIBUS DP interface for integrating compatible field devices into a DeltaV S-Series control system. Its simplex configuration includes one interface card and one terminal block, allowing the network to be connected through the designated hardware.
During a replacement, verify more than the model number. The network baud rate, bus termination, device addresses, GSD-based device configuration, and DeltaV controller configuration all affect commissioning. Also distinguish SE4022 from SE4038: Emerson’s ordering documentation identifies SE4038 as the redundant PROFIBUS DP interface assembly. A simplex SE4022 should not be assumed to provide the same redundancy arrangement.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | SE4022 |
| Manufacturer | Emerson |
| Control System | DeltaV S-Series |
| Product Type | Simplex PROFIBUS DP interface assembly |
| Included Components | One interface card and one simplex terminal block |
| Communication Protocol | PROFIBUS DP |
| Physical Network Ports | One |
| Device Capacity | Up to 64 devices, according to available technical listings |
| Bus Termination | Switchable termination |
| Operating Temperature | −40 to +70°C |
| Storage Temperature | −40 to +85°C |
| Relative Humidity | 5–95%, non-condensing |
| Protection Rating | IP20 |
| Conformal Coating | Class G3, as reported in technical listings |
| Redundant Assembly | SE4038 |
The assembly description is confirmed by the DeltaV S-Series product data sheet. Environmental and network-capacity details should be checked against the documentation for the exact hardware revision and network configuration.
Application Scenarios & Pain Points
- Variable-frequency drives: Integrates compatible PROFIBUS DP drives into DeltaV for control and status exchange.
- Remote I/O networks: Connects supported PROFIBUS DP remote I/O devices to the control system.
- Package equipment integration: Exchanges configured data with third-party equipment that supports the required PROFIBUS DP profile.
- Legacy system maintenance: Provides a replacement path for an existing SE4022 assembly while preserving the established network configuration where compatible.
SE4022
Related Products
These products are related by system or communication function, but they are not all direct replacements.
- SE4038 — Redundant PROFIBUS DP interface assembly; the documented redundant counterpart to SE4022.
- KJ3243X1-BK1 — Associated interface-card ordering designation in available product listings; verify the complete assembly contents.
- SE4006P2 — Simplex two-port serial interface assembly, used for serial rather than PROFIBUS DP communication.
- SE4009 — AS-i bus I/O interface with terminal block.
- SE4015 — Pulse/multifunction I/O card with terminal block.
- SE4017P0 — Simplex H1 fieldbus interface with terminal block.
- SE4017P1 — Simplex H1 fieldbus interface with integrated segment power and terminal block.
The communication protocol and redundancy requirements determine which part is appropriate. Do not substitute a serial or H1 interface for a PROFIBUS DP card based on a similar-looking form factor.
The Engineer’s Guide: Field Pitfalls to Avoid
Pitfall 1: Incorrect bus termination
PROFIBUS DP requires correct termination at the ends of the bus segment. Check the physical network layout and termination settings before commissioning. Incorrect termination can cause intermittent communication faults that resemble a failed interface card.
Pitfall 2: Device configuration mismatch
A replacement card does not automatically restore the network configuration. Verify device addresses, baud rate, GSD files, configured data lengths, and DeltaV control-module mappings before returning the system to service.
Pitfall 3: Confusing simplex and redundant hardware
is listed as the simplex assembly, while SE4038 is the documented redundant assembly. If the application requires redundant communication, check the installed architecture and redundancy configuration instead of assuming that one alone provides failover.
Frequently Asked Questions
Q1: What is the Emerson used for?
It provides PROFIBUS DP communication between a DeltaV S-Series control system and compatible field devices, such as drives and remote I/O stations.
Q2: Is a complete assembly?
The documented ordering configuration includes one interface card and one simplex terminal block. Confirm the supplied package contents before purchasing a replacement.
Q3: How many devices can it support?
Available technical listings specify up to 64 devices per card. Actual network capacity depends on device configuration, bus design, and the applicable system documentation.
Q4: Is redundant?
is the simplex assembly. SE4038 is the documented redundant PROFIBUS DP interface assembly. Check the installed system architecture before choosing between them.
Q5: What should be checked before installation?
Verify the model and terminal block, S-Series carrier compatibility, PROFIBUS cable wiring, termination, baud rate, device addresses, and DeltaV configuration.
Q6: How should a used or refurbished card be evaluated?
Request clear label and connector photographs, confirmation of the included terminal block, and a documented functional test. A power-on test alone does not prove stable PROFIBUS communication under network load.
Q7: What determines availability and lead time?
Availability depends on the exact hardware revision, included components, condition, and inspection requirements. Confirm whether the offer covers the complete assembly or only the interface card.
