Motor & Automation Control · Signals & Logic

PLC Control Cabinets

PLC control cabinets support signal acquisition, logic control and equipment interlocking. PLC, power supply, I/O modules, relays, terminals and HMI are configured to equipment and process needs; not all items are included by default.

Choose empty enclosures or assembled equipment. Empty supply does not include PLC, HMI, power supply, electrical devices or internal wiring by default. Assembly follows confirmed drawings and the device list; programs, screens, interface development and site work require a separate agreement.

Typical PLC Cabinet Applications

These uses help assess suitability; they are not completed project references.

Industrial production lines

Signal acquisition and agreed logic / interlocks defined by equipment and process descriptions.

Water treatment & pump stations

Control interfaces confirmed against instrument signals, equipment status and process requirements.

HVAC systems

Operation and communication options defined by equipment logic and local / remote requirements.

Other automation equipment

Start with equipment descriptions and available I/O information to define control and system-interface scope.

Parameters & Configuration

Options follow manual pages 22–23. Supply, controller, signals, interfaces, environment and enclosure configuration require a combined assessment; no fixed capacity, universal protocol support or unrestricted combination is implied.

Parameters & Configuration
ItemListed options / configurationTo confirm for the project
Input supply voltageAC 220 / 230 / 380 / 400 VOther voltages are project-specific.
Operating frequency50 / 60 HzOther frequencies are project-specific.
Control supplyDC 24 VOther voltages follow the selected devices and control scheme.
PLC & module configurationPLC brand, CPU, I/O and expansion modules are project-specificConfirm I/O types and quantities, signal specifications and expansion needs; no fixed capacity is specified.
Operation & communicationsOptional HMI, local / remote operation and communication interfacesConfirm protocols, device interfaces and connection requirements individually; not all protocols are supported by default.
Degree of protectionIP40 / IP50 / IP54 / IP55Confirm specific construction and operating conditions; other ratings require assessment.
Enclosure steel thickness1.5 / 2.0 mmOther thicknesses are project-specific; doors, mounting plates and other parts are confirmed separately.
Material & surface treatmentCold-rolled steel / galvanized steel / stainless steelMaterial, finish and colour follow project requirements.
Installation & environmental controlWall-mounted / floor-standingHeat dissipation, filtered ventilation and condensation prevention depend on environment, internal heat and protection requirements. Air conditioning is not included by default.
Dimensions & cable entryWidth × height × depth, in mmConfirm device layout, wiring, cable entry / exit and maintenance space.

Hardware selection, software functions and system interfaces are confirmed together. Listed device or interface options do not include program development or site system integration by default.

Final parameters, configuration and scope of supply are subject to the confirmed drawings and order agreement.

Choose Empty or Assembled Supply

Empty enclosure

Mechanical enclosure and mounting accessories follow the confirmed drawings and list.

  • Enclosure, doors, mounting plate and mechanical accessories follow the agreed list.
  • Wall / floor mounting construction, openings and mounting interfaces follow the drawings.
  • PLC, HMI, power supply, electrical devices and internal wiring are not included by default.

Assembled equipment

Enclosure with the agreed components and internal wiring.

  • PLC, power supply, I/O, relays, terminals and HMI are selected to the confirmed device list.
  • Device mounting and internal wiring follow confirmed electrical and layout drawings.
  • Communication hardware, thermal / environmental configuration, applicable checks and documents follow the order agreement.

Interfaces & Additional Scope

PLC programs, HMI screens, system-interface development and site work require explicit agreement on scope, input information, interface responsibilities and deliverables. Complete programming, commissioning and system integration are not included by default.

Define Control Needs from Process & I/O Information

If information is incomplete, send available equipment descriptions, drawings or I/O information to start a technical discussion. Outstanding inputs are confirmed before defining the scheme and scope.

You provide

  • Quantity, equipment / process description, control logic and interlock requirements.
  • I/O list, signal types and specifications, current quantities and expansion needs.
  • PLC brand, CPU preferences, HMI needs, communication protocols and system interfaces.
  • Power supply, dimensions, wall / floor mounting, cable entry, environment and protection requirements.

GoodQi confirms

  • PLC, CPU, I/O and power-supply selection and device list.
  • Signals, wiring, communication interfaces and boundaries with other equipment.
  • Enclosure layout, material, thicknesses, openings, heat dissipation and condensation prevention.
  • Assembly scope, program and screen deliverables, interface development, site work, agreed check conditions and documents.

Use Additional Requirements for known information and outstanding items. After preparing the enquiry draft, attach I/O lists, electrical drawings and control descriptions in your email app.

Request a PLC Cabinet Quote

Quality Checks & Delivery Documents

Incoming, assembly and outgoing checks follow the confirmed product configuration and order scope.

Checks for the supplied equipment

Empty enclosures
Dimensions, structure, surface finish, assembly and supply completeness against the order.
Assembled equipment
Applicable electrical checks cover devices, wiring, insulation and earth continuity for the supplied configuration. Energization and functional checks follow the agreed scope, input signals and test conditions.

Documents agreed for the project

  • Outline and arrangement drawings
  • Single-line diagram and component list
  • Wiring and interface drawings, where applicable
  • Routine inspection records for the agreed checks

Delivery documents, check scope and test conditions follow the order agreement. Cabinet functional checks do not replace site system commissioning.

View Engineering & Quality

PLC Cabinet Enquiry FAQ

Are PLC capacity and communication protocols fixed?

No. Brand, CPU, I/O types and quantities, signal specifications and expansion are project-specific. HMI and communication interfaces are optional; universal protocol support is not assumed.

Does assembled supply include complete programs and HMI screens?

Not by default. Assembly follows confirmed drawings and the device list. PLC programs, HMI screens, interface development and site work require separate agreement.

Does an empty enclosure include power supply and wiring?

PLC, HMI, power supply, electrical devices and internal wiring are not included by default. Mechanical enclosure and mounting accessories follow the confirmed drawings and list.

Can cabinet functional checks replace site commissioning?

No. Functional checks follow the agreed scope, input signals and test conditions. Site interface, process and equipment commissioning work must be defined separately.

Can I enquire without a complete I/O list?

Yes. Send available equipment / process descriptions, drawings and known needs to start a technical discussion. The quote button preselects PLC; prepare the draft, then attach information and review in your email app before sending.

Discuss Your PLC Control Cabinet Requirements

Final parameters, configuration and scope of supply are subject to the confirmed drawings and order agreement.