AI 812 S-DIAS Analog Input Module SIGMATEK

SIGMATEK Analog Input Module AI 812 (S-DIAS Analog Input Module)

SIGMATEK AI 812 is an Analog Input Module in the S-DIAS series for industrial automation control systems, designed to receive signals from resistance measuring devices or temperature sensors, with 4 channels.

The module supports temperature sensors of the types PT100, PT1000, NI100, and NI1000, which are sensors that rely on changes in resistance with temperature, and supports wiring configurations of 2-Wire and 3-Wire.

For resistance measurement, the catalog specifies a measurement range of 0-5000 Ohm internally, with 5 measurement ranges and a signal reading resolution of 16 bit.

The unit has a compact size of 12.5 x 104 x 72 mm (width x height x depth), suitable for temperature and resistance measurement work in machines or production processes using the S-DIAS system of SIGMATEK.

General Features (Features)

• Brand SIGMATEK
• Model AI 812
• Series S-DIAS
• Type Analog Input Module
• Supports 4 Analog Input Channels
• Receives signal types of Resistance or Temperature
• Signal reading resolution of 16 bit
• Supports resistance measurement within the range of 0-5000 Ohm
• Has 5 resistance measurement ranges according to the catalog data
• Supports temperature sensor PT100
• Supports temperature sensor PT1000
• Supports temperature sensor NI100
• Supports temperature sensor NI1000
• Supports sensor wiring configurations of 2-Wire and 3-Wire
• Unit size 12.5 x 104 x 72 mm
• Suitable for temperature measurement systems in automation work

Technical Specifications (Technical Specifications)

Specifications	Details
Brand	SIGMATEK
Model	AI 812
Series	S-DIAS
Product Type	Analog Input Module
Number of Analog Inputs	4 Channels
Input Function	Resistance / Temperature
Resolution	16 bit
Resistance Measurement	Within 0-5000 Ohm
Resistance Ranges	5 Ranges (Individual Ranges Not Specified)
Temperature Sensor Types	PT100 / PT1000 / NI100 / NI1000
Sensor Wiring	2-Wire / 3-Wire
Width	12.5 mm
Height	104 mm
Depth	72 mm
Dimensions (W x H x D)	12.5 x 104 x 72 mm
Temperature Measurement Range	To Be Confirmed for Each Sensor Type
Measurement Accuracy	Not Specified in Catalog
Sampling Rate	Not Specified in Catalog
Electrical Isolation	Not Specified in Catalog
Module Power Requirements	To Be Confirmed According to S-DIAS System
Operating Temperature	Not Specified in Catalog
Catalog Reference	SCMA General Catalog Vol.5, D1-08

Note: The catalog specifies the number of inputs, sensor types, resolution, resistance measurement range, and module size, but does not specify the measurable temperature range for each sensor type, accuracy, or details of all five resistance ranges. Please check the AI 812 specific datasheet before finalizing the project specification.

4-Channel Analog Input

SIGMATEK AI 812 supports 4 analog input channels for measuring resistance or temperature from supported sensors.

The module can be used to collect measurement data from multiple locations within a machine control system, but each channel's signal type and connection must be correctly set according to the manufacturer's manual.

Resistance Measurement

AI 812 supports resistance measurement within the range of 0-5000 Ohm, and the catalog specifies that there are 5 measurement ranges for use.

The selected measurement range should be consistent with the resistance range of the connected device or sensor to ensure the readings are suitable for the application.

Details of the measurement range for each range, configuration methods, and signal coordinates must be checked in the manufacturer's technical documentation.

Supports PT100 and PT1000 Sensors

AI 812 supports PT100 and PT1000 temperature sensors, which are Resistance Temperature Detectors (RTD) that use the property of platinum's resistance change according to temperature.

Generally, PT100 has a standard resistance of 100 Ohm at 0°C, and PT1000 has a standard resistance of 1000 Ohm at 0°C. However, the actual temperature range that the module can measure must be checked according to the AI 812 datasheet.

Supports NI100 and NI1000 Sensors

The module supports NI100 and NI1000 temperature sensors, which are resistance-type temperature sensors using nickel material.

Usage must ensure that the sensor standards, temperature range, and the relationship between temperature and resistance match the system control settings.

Supports 2-Wire and 3-Wire Sensor Connections

AI 812 supports 2-wire and 3-wire sensor connection formats according to the catalog data.

2-Wire Connection: Uses two signal wires to connect the sensor. The resistance of the wires may affect the readings, especially when running long cables.

3-Wire Connection: This wiring format is used to compensate for the effect of wire resistance under appropriate conditions, helping to reduce measurement errors when used with compatible modules and sensors.

Before installation, check the wiring diagram and terminal positions of AI 812 directly to ensure accurate resistance or temperature readings.

16-bit Resolution (Resolution)

AI 812 has a 16-bit signal reading resolution according to the catalog data, suitable for application in industrial systems for measuring resistance and temperature values.

The 16-bit resolution is related to signal conversion and should not be directly interpreted as measurement accuracy, as actual accuracy depends on the sensor, signal circuit, installation, and environment.

Operation with S-DIAS System

AI 812 is a module in the S-DIAS series from SIGMATEK for expanding measurement input channels to compatible control systems.

When selecting, it is necessary to check the compatibility of the CPU, power supply module, and components, as well as the configuration requirements for signal channels and data display in the software.

Product Dimensions (Mechanical Dimensions)

Dimension	Size
Width	12.5 mm
Height	104 mm
Depth	72 mm

The compact body size is suitable for installation together with other modules in the S-DIAS system, ensuring sufficient space is provided for wiring terminals, sensor wiring, and maintenance as per the manufacturer's manual.

Application Examples (Applications)

• Temperature measurement system in industrial machinery
• System receiving signals from PT100 and PT1000 sensors
• System receiving signals from NI100 and NI1000 sensors
• Resistance measurement system in production processes
• Multi-point temperature measurement system
• PLC system requiring RTD signal input
• Factory Automation and Machine Control systems
• Design of temperature control and measurement systems in industrial applications

Selection Guidelines for SIGMATEK AI 812

• Check the number of required Analog Input channels
• Check the type of sensor: PT100, PT1000, NI100, or NI1000
• Determine whether resistance or temperature measurement is required
• Check the resistance range and supported measurement range
• Check the required temperature range according to the Datasheet
• Define the wiring configuration as 2-Wire or 3-Wire
• Consider the resolution and accuracy required by the process
• Check compatibility with the CPU and S-DIAS system
• Check the terminal positions and wiring requirements

Installation Precautions (Installation Precautions)

• Check the sensor type and wiring configuration before installation
• Use the wiring diagram of the AI 812 model for connecting all channels
• Check the wire resistance and length of the sensor cables used
• Select appropriate cable types and noise protection
• Do not connect external voltage or current to the resistance measurement channel without manufacturer approval
• Check the sensor type configuration in the control system

• Check the power supply system and components according to the SIGMATEK manual
• Do not plug in or unplug modules while powered on, unless the manufacturer's manual specifies that it is supported
• Test the values read with the sensor or appropriate reference before actual use

Important Notes

• Product is SIGMATEK S-DIAS Analog Input Module model AI 812
• Supports measurement of Resistance or Temperature with 4 channels
• Has a resolution of 16 bit
• Supports resistance measurement within the range of 0-5000 Ohm with 5 ranges
• Supports Temperature Input types PT100, PT1000, NI100 and NI1000
• Supports sensor connection types 2-Wire and 3-Wire
• Product size 12.5 x 104 x 72 mm
• Catalog does not specify the accuracy and temperature range for each type of sensor
• Do not use the specifications of AI 022, AI 043 or AI 075 as a replacement for AI 812
• Check the compatibility of CPU and S-DIAS system before ordering