DI 204 S-DIAS Digital Input Module SIGMATEK

SIGMATEK DI 204 Digital Input Module (S-DIAS Digital Input Module)

SIGMATEK DI 204 is a digital input module (Digital Input Module) in the S-DIAS family for use with industrial automation control systems. It supports 20 digital input points and uses NPN (Ground Switching) signal format.

The DI 204 module is suitable for systems that require status signals from sensors or switching devices with NPN output characteristics, allowing the status data to be used in machine control programs as per system design.

The device has an Input Delay of 5 ms and a compact size of 12.5 x 104 x 72 mm (width x height x depth), making it suitable for integration into I/O systems of machines and industrial control panels that support S-DIAS.

Features

• Brand: SIGMATEK
• Model: DI 204
• In the S-DIAS family
• Type: S-DIAS Digital Input Module
• Supports 20 digital input points
• Accepts NPN (Ground Switching) digital signals
• Holds an Input Delay of 5 ms
• Dimensions: Width 12.5 mm, Height 104 mm, Depth 72 mm
• Suitable for receiving digital signals in machine control systems
• Can be applied to NPN sensors and switching devices with compatible specifications
• Suitable for Factory Automation and Industrial Control systems

Technical Specifications

Specifications	Details
Brand	SIGMATEK
Model	DI 204
Series	S-DIAS
Product Type	Digital Input Module
Number of Digital Inputs	20 Inputs
Input Type	NPN (Ground Switching)
Input Delay	5 ms
Width	12.5 mm
Height	104 mm
Depth	72 mm
Dimensions (W x H x D)	12.5 x 104 x 72 mm

Input Voltage RangeTo Be Confirmed from Manufacturer Datasheet Input CurrentNot Specified in Catalog Isolation SpecificationNot Specified in Catalog Module Power RequirementTo Be Confirmed According to S-DIAS System Operating TemperatureNot Specified in Catalog ApplicationIndustrial Digital Signal Acquisition Catalog ReferenceSCMA General Catalog Vol.5, D1-05

Note: The catalog specifies the number of inputs, signal type Input Delay and size but does not specify input voltage range, input current or module power requirement. Therefore, it is necessary to check the specific model DI 204 datasheet before designing the electrical system.

20 Digital Inputs

SIGMATEK DI 204 supports 20 digital signal inputs allowing for connection of multiple status detection devices in a machine control system.

Examples of applications include receiving status from Proximity Sensor, Limit Switch, Photoelectric Sensor or other switching devices with electrical signals matching the NPN input specification.

The use requires checking the power supply and wiring of the source device before connecting to the module.

NPN Signal Type (Ground Switching)

DI 204 accepts digital signals in the NPN or Ground Switching type, which generally uses an output that pulls signal down to ground when the device operates according to supported circuitry.

When selecting sensors for use with DI 204, it is important to check that the sensor's output is of the NPN type and has voltage, current and wiring configuration matching the module requirements.

PNP output sensors should not be connected to DI 204 automatically as switching types differ and may cause incorrect status reading by the system.

Input Delay 5 ms

SIGMATEK DI 204 has an Input Delay of 5 ms according to catalog information, which is important for considering the response time of digital signal inputs.

The system design should consider the Input Delay value along with the signal duration, sensor timing, and CPU cycle time to ensure that the status can be read as required by the process.

For high-speed pulse signals or pulse counting tasks, it is advisable to check the suitability of specialized modules since DI 204 does not specify Counter or High-Speed Counter capabilities in the catalog.

Compatibility with S-DIAS System

The DI 204 is an input module in SIGMATEK's S-DIAS family for receiving digital signals into a control system, requiring selection of compatible CPU modules and accessories.

The number of modules that can be connected in the actual system depends on the requirements of the CPU, power supply, and system architecture. It should not be assumed that the module support of one CPU model is applicable to all systems without verification.

Physical Dimensions (Mechanical Dimensions)

Dimension	Size
Width	12.5 mm
Height	104 mm
Depth	72 mm

The unit has a width of 12.5 mm, suitable for neat module I/O placement within control cabinets as required by design specifications. Installation methods and clearance requirements should be verified from the product manual.

Example Applications (Applications)

• Digital signal reception system from automated machinery
• NPN sensor status reading system
• Industrial production line control system
• Machinery equipment status checking system
• A control system requiring 20 digital input points
• Factory Automation System
• S-DIAS compatible PLC and I/O Expansion systems
• Design and development of industrial control systems

Selecting SIGMATEK DI 204 Guidelines

• Check the number of required digital input points.
• Verify that the source equipment has NPN output.
• Review voltage and current input ranges from the datasheet.
• Evaluate the 5 ms Input Delay value to suit signal speed requirements.
• Ensure module compatibility with the used S-DIAS system.
• Check power supply and accessory systems.
• Verify size and installation space within control cabinets.
• Review terminal configurations and wiring before installation.

Installation Precautions

• Check the NPN signal format before connecting input wires.
• Use electrical coordinates according to the DI 204 model Datasheet.
• Verify grounding and signal reference points as per manufacturer's manual.
• Avoid applying voltage to the input port beyond rated limits.
• Separate signal wiring from power lines that cause interference where appropriate.
• Check module compatibility with CPU and S-DIAS system.
• Do not insert or remove modules while powered on, unless specified in the manufacturer's manual.
• Verify input status and test the system before putting machinery into actual use.

Important Notes

• The product is a SIGMATEK S-DIAS Digital Input Module model DI 204.
• Supports 20 digital inputs.
• Acknowledges NPN signal type (Ground Switching).
• Has an input delay of 5 ms.
• Dimensions: 12.5 x 104 x 72 mm.
• Different from the DI 205 model which accepts PNP (+24 VDC) signals.
• The catalog does not specify counter capabilities for DI 204.
• Must check input voltage range and power supply details from Datasheet.
• Check CPU compatibility and equipment list before ordering.