Compact PLCs for EV Battery Formation Equipment: SEA Guide

By Aoctrl Editorial Team — Procurement Desk

Data through August 2026. When LG Energy Solution announced in March 2026 that it was considering Chinese automation systems for battery manufacturing equipment in Southeast Asia, the implication for panel builders was clear: a new category of control equipment was entering the EV battery production ecosystem in the region. Compact PLCs — the small-footprint controllers that manage cell formation, formation-testing, and sorting sequences — are a key component in these battery manufacturing lines. This article examines how Southeast Asian panel builders can address this emerging demand, with the Inovance H1U-2416MR-XP (id: 56862, aiDemandScore 76.28) as a focal catalog product.

Why EV Battery Manufacturing Is Creating a New PLC Demand Vector in SEA

Southeast Asia has become a major destination for EV battery investment. Samsung SDI, LG Energy Solution, and VinEnergy are building gigafactories in Vietnam. Indonesia is seeing accelerating nickel-processing and battery-cell investment tied to Hyundai and LG Energy Solution joint ventures. Thailand is positioning itself as an EV manufacturing hub with Honda and GAC commitments. These facilities require not just large-scale battery production equipment but also extensive auxiliary systems — and those auxiliary systems need control panels.

Within a battery cell production line, the formation and formation-testing stages are among the most automation-intensive. Formation is the process of applying controlled charge and discharge cycles to a new cell to stabilize its chemistry. Formation-testing equipment must precisely control voltage, current, and temperature across hundreds or thousands of channels simultaneously. A compact PLC like the Inovance H1U-2416MR-XP — with 24 digital inputs and 16 relay outputs, Modbus TCP communication, and IEC 61131-3 programming — is appropriately sized for managing a formation-testing station with 8 to 16 channels. Multiple H1U units can be networked via Modbus TCP to coordinate a full formation-testing rack.

LG Energy Solution's March 2026 statement that it was considering Chinese automation systems for battery manufacturing equipment signals that the economics of EV battery production in SEA are driving buyers toward cost-optimized automation architectures. Chinese automation brands including Inovance offer PLCs and drives at price points meaningfully below equivalent Siemens or Mitsubishi products — a compelling proposition when a gigafactory requires hundreds of formation-testing channels.

The Inovance H1U-2416MR-XP in the aoctrl Catalog

The aoctrl catalog carries the Inovance H1U-2416MR-XP (id: 56862, aiDemandScore 76.28, secondary tier). This compact PLC from Inovance is configured for small-to-medium machine control applications. The "2416" designation indicates 24 digital inputs and 16 digital relay outputs. The "XP" suffix denotes extended I/O expansion capacity compared to the base H1U-1616MR variant.

Confirmed specifications from the aoctrl catalog:

I/O configuration: 24 digital inputs plus 16 digital relay outputs
Communication ports: 1 RS-485 port (Modbus RTU); 1 Ethernet port (Modbus TCP)
Programming environment: IEC 61131-3 (CODESYS-based ladder logic, structured text, function block diagram)
Expansion I/O: Supports up to 4 I/O expansion modules via dedicated internal bus
Power supply: 24 V DC nominal
Operating temperature range: minus 10 degrees C to 55 degrees C
Mounting: DIN rail (35 mm)
Certifications: CE marked

The H1U-2416MR-XP is appropriate for formation-testing station control, climate chamber sequencing, electrolyte-filling equipment coordination, and cell-sorting conveyor control — all ancillary but essential functions in a battery manufacturing facility.

Panel Builder Application: Formation-Testing Rack with Eight Channels

A typical formation-testing rack in a battery manufacturing facility manages 8 to 32 individual cell formation channels simultaneously. Each channel requires a contactor or solid-state relay to switch the charge/discharge circuit, a voltage measurement input, a temperature sensor input, and a digital output for alarm indication. The H1U-2416MR-XP's 24-input/16-output configuration provides sufficient I/O for an 8-channel rack with overhead for alarms and auxiliary outputs.

A panel builder quoting a formation-testing rack control panel would typically specify:

PLC: Inovance H1U-2416MR-XP (MOQ 1 unit, contact aoctrl for current stock and lead time)
HMI: Delta DOP-100 series (10.1-inch touch panel, Modbus TCP)
VFD: Inovance MD310T7.5B-TC (7.5 kW, aiDemandScore 68.54) for formation chamber mixing fans
Power supply: Phoenix Contact QUINT4-PS/3AC/24DC/20 DIN rail PSU
Contactors: Weidmuller D-SUW 3-phase contactor for main formation bus switching

The use of a single brand (Inovance) across PLC and VFD reduces the number of programming environments the panel builder's software team needs to manage — a practical benefit when commissioning timelines are tight.

Competitive Positioning: H1U-2416MR-XP vs Siemens S7-1200 for Formation Equipment

The Siemens SIMATIC S7-1200 CPU 1214C DC/DC/DC is the conventional choice for formation-testing equipment in battery manufacturing. It offers robust PROFINET support, TIA Portal integration, and a vast ecosystem of expansion modules. However, the S7-1200 G2 generation launched in 2024 carries a significant unit price premium over the Inovance H1U-2416MR-XP, and lead times from Siemens franchised distribution remain extended.

For a gigafactory project requiring 200 formation-testing racks — each with its own PLC — the BOM cost difference between Siemens S7-1200 and Inovance H1U-2416MR-XP can be substantial. If each rack requires one PLC, the total PLC BOM saving could exceed USD 100,000 across the project, depending on unit pricing at time of RFQ.

The tradeoff is in brand familiarity: battery manufacturing engineers in Southeast Asia are generally more experienced with Siemens TIA Portal than with Inovance's CODESYS-based development environment. Panel builders who can demonstrate Inovance programming competence — or who include a programming and commissioning support package in their quotation — will be better positioned to win these RFQs.

Sourcing the Inovance H1U-2416MR-XP Through aoctrl

The H1U-2416MR-XP is catalogued at aoctrl with full technical specifications. Panel builders can submit an RFQ specifying quantity, delivery timeline, and any required accessories such as programming cables, additional I/O modules, and communication adapters. For formation-testing applications requiring multiple PLC units networked together, aoctrl can typically accommodate quantities of 10 units or more with coordinated delivery.

For projects requiring matching VFDs, the Inovance MD310 series (MD310T7.5B-TC, MD310T11B-TC) is also catalogued and can be included in the same RFQ. Both products share the Inovance CODESYS ecosystem, enabling a single development environment for PLC and drive parameters.

Lead times for the H1U-2416MR-XP through aoctrl are typically four to six weeks for standard orders under 20 units, subject to stock availability at time of RFQ confirmation. Confirm stock and estimated lead time with aoctrl before finalizing project timelines.

Q3-Q4 2026 Outlook for EV Battery Manufacturing PLC Demand in SEA

The pipeline of EV battery manufacturing investment in Southeast Asia shows no signs of slowing in Q3-Q4 2026. Thailand's Board of Investment approved USD 43.6 billion in FDI in the first half of 2026, with battery and electronics manufacturing representing a significant share. Vietnam continues to attract gigafactory investment from Samsung SDI and LG Energy Solution, while Indonesia's downstream processing facilities create demand for automation in nickel-to-battery-value-chain processing.

For panel builders, the key procurement question in Q3-Q4 2026 is not whether to address EV battery manufacturing demand but how to quote competitively against Chinese automation distributors who are already active in these supply chains. Inovance's August 31, 2026 earnings report — which described record H1 2026 results driven by automation and motion control growth — confirms that Chinese automation brands are scaling their production and distribution capacity to serve exactly these types of projects.

Panel builders who can demonstrate familiarity with Inovance's H1U and MD310 platforms, and who can provide a complete BOM quotation for formation-testing control panels, will be better positioned to win RFQs from EV battery manufacturing projects in the region.

Data Notes

Market facts in this article draw on the following named sources with publication dates:

LG Energy Solution considers Chinese automation systems for battery manufacturing equipment in Southeast Asia — TheLEC.net, March 12, 2026
Inovance Technology Q2 2026 earnings beat, record H1 2026 results driven by automation and motion control — Investing.com, August 31, 2026
Thailand Board of Investment approved FDI USD 43.6 billion in first half 2026 — Thailand BOI public report, July 2026
Variable Frequency Drive market projected to reach USD 3.43 billion by 2035, Asia-Pacific fastest-growing region — Fortune Business Insights, August 24, 2026

Catalog specifications for H1U-2416MR-XP (id: 56862, aiDemandScore 76.28), MD310T7.5B-TC (aiDemandScore 68.54), and MD310T11B-TC (aiDemandScore 68.7) are drawn from the aoctrl product catalog.

Disclaimer

This article was independently produced by aoctrl, an independent industrial automation distributor. The editorial team covers PLCs, drives, motors, sensors, and automation components for panel builders and industrial buyers across Southeast Asia. Aoctrl does not manufacture the products discussed and does not accept compensation from manufacturers for editorial coverage. All sourcing guidance reflects catalog data and publicly available market information. All product specifications cited are taken directly from the aoctrl catalog product pages.