Description
Product Introduction
When a DeltaV system must exchange operating data with a third-party PLC, analyzer, drive, or package controller over a serial connection, the interface hardware and its configuration both matter. The Emerson VE4036P2 is a redundant M-Series serial interface assembly designed for this role. It includes two interface cards and a redundant terminal block, allowing the control system to use a redundant serial-interface arrangement rather than relying on a single card.
Each interface card provides two serial ports. Depending on the connected equipment, ports can be configured for RS-232 or RS-422/485 operation. The assembly is associated with Modbus RTU and Modbus ASCII support, with drivers pre-installed on the documented Series 2 redundancy cards. Do not assume that hardware redundancy alone guarantees uninterrupted communication: the field device, cabling, protocol configuration, and recovery behavior must also be checked.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | VE4036P2 |
| Manufacturer | Emerson |
| System | DeltaV M-Series |
| Product Type | Redundant 2-port serial interface assembly |
| Interface Cards Included | 2 |
| Ports per Card | 2 |
| Serial Standards | RS-232; RS-422/485 half- or full-duplex |
| Protocols | Modbus RTU, Modbus ASCII; other protocols depend on driver/configuration support |
| Data Rate | 300 to 115,200 baud |
| Data Sets | Up to 32 per card, 16 per port |
| Data Format | Configurable parity, data bits, and stop bits |
| Operating Temperature | −40 to 70°C |
| Storage Temperature | −40 to 85°C |
| Relative Humidity | 5–95%, non-condensing |
| Protection Rating | IP20 |
| Assembly | Two interface cards plus redundant terminal block |
Specifications above are drawn from product documentation and technical listings for VE4036P2. Verify the exact hardware revision and applicable system manual for installation-specific limits.
Application Scenarios & Pain Points
- PLC-to-DeltaV data exchange: Integrate supported serial devices using Modbus RTU or ASCII, subject to driver and device configuration.
- Analyzer and package-equipment integration: Read process measurements and status data from equipment that provides compatible serial communications.
- Redundant communications architecture: Provide an active/standby interface arrangement for supported DeltaV installations.
- Maintenance of legacy systems: Replace a failed assembly while retaining the established port configuration, dataset mapping, and field wiring—after confirming the replacement is the exact version required.
VE4036P2
Related Products
These related models help identify the correct assembly or a potential alternative; they should not be treated as automatically interchangeable.
- VE4006P2 — Non-redundant M-Series two-port serial interface assembly with one interface card and a simplex terminal block.
- KJ3241X1-BA1 — Interface-card component associated with the VE4036P2 assembly.
- KJ3241X1-EA1 — Redundant terminal-block component associated with the assembly.
- SE4006P2 — Related DeltaV serial interface assembly designation; verify hardware revision and ordering details.
- VE4037P0 — Redundant H1 fieldbus interface assembly, a different communication function rather than a serial-interface substitute.
Check the installed system’s bill of materials and Emerson ordering documentation before sourcing individual components or changing assembly variants.
The Engineer’s Guide: Field Pitfalls to Avoid
Pitfall 1: Matching only the number of ports.
Two serial ports do not guarantee electrical compatibility. Verify RS-232 versus RS-422/485, half- or full-duplex mode, pinout, grounding, and termination requirements for each connected device.
Pitfall 2: Assuming redundancy covers the entire communication path.
VE4036P2 provides redundant interface hardware, but the field device, network path, power arrangement, and protocol behavior can still create a single point of failure. Test the actual switchover and recovery sequence during commissioning.
Pitfall 3: Replacing hardware without checking the dataset map.
A replacement can power up and still exchange incorrect values if register mapping, data types, byte order, polling, timeout, or retry settings differ. Record the existing configuration and validate representative values before returning the loop to service.
Frequently Asked Questions
Q1: What is the VE4036P2 used for?
It is a redundant DeltaV M-Series serial interface assembly used to exchange data between DeltaV and supported external serial devices.
Q2: How many serial ports does it provide?
It includes two interface cards with two ports each, for four physical ports across the redundant assembly. Each card supports up to 32 datasets, with a maximum of 16 per port.
Q3: Does it support RS-485?
The documented interface options include RS-422/485 half-duplex and full-duplex, as well as RS-232. Confirm the required electrical mode and wiring for the target device.
Q4: Is the same as VE4006P2?
No. is the redundant assembly with two interface cards and a redundant terminal block. VE4006P2 is the simplex assembly with one card and a simplex terminal block.
Q5: Is it suitable for every DeltaV controller family?
Do not assume universal compatibility. Verify the controller family, DeltaV software version, installed serial-interface driver, and hardware revision against the system documentation.
Q6: What should be checked before purchasing a used or refurbished unit?
Request clear label and connector photos, confirmation of the included cards and terminal block, the condition of the hardware, and a test report that identifies the test performed. A power-on check alone does not prove serial communication or redundancy switchover.
Q7: What determines delivery lead time?
Availability depends on the exact revision, whether the assembly is complete, and whether inspection or functional testing is required. Confirm the condition and included components in writing before placing the order.
