K531 Analog IO Expansion

The PLC-K531 Analog Input Expansion Modules are offered for current and voltage inputs or Resistance Temperature Detector (RTD) sensor inputs. The PLC-K531-04RD is an RTD module that accepts the following sensor types: Pt100, Pt1000, Cu50, and Cu100. The PLC-K531-04IV performs a 12-bit conversion on the inputs for high-resolution measurement and can be configured to read voltages or currents of different ranges. The PLC-K531-04IV can accept a current range 0-20mA or 4-20mA, and a voltage range of 1-5VDC or 0-10VDC. The PLC-K531 series has an accuracy of ±0.3% ensuring a precise reading. These modules are attached to the PLC-K5 CPU series to provide analog input capabilities. Up to 6 of the analog input modules can be attached to the PLC-K5 CPUs, allowing for a maximum of 24 analog inputs or 28 analog inputs if using the PLC-K506EA-30AT.




  • Resistance Temperature Detector Module Offered
  • Current and Voltage Input Module Offered
  • Provides Wide Input Range
  • Up to 6 Analog Input Modules in One PLC-K5 System
  • 12-bit Conversion for High-Resolution Measurement
  • Very Reliable ±0.3% Error

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K531-04IV Expansion Module,
Analog Inputs
4 N/A 0-20mA
4-20mA
1-5VDC
0-10VDC
N/A Click here for PDF Spec Sheet Click here to request a Quote. $102.00 view here
Quantity Discounts
1pc. $102.00
10pc. $98.38
25pc. $95.53
50pc. $87.56
100pc. $81.12
Contact Us for Quantities over 100
6 in Stock Add to Cart
K531-04RD Expansion Module,
Analog Inputs
4 N/A Pt100, Cu50,
Pt1000, Cu100
N/A Click here for PDF Spec Sheet Click here to request a Quote. $119.00 view here
Quantity Discounts
1pc. $119.00
10pc. $115.17
25pc. $111.83
50pc. $103.40
100pc. $94.82
Contact Us for Quantities over 100
10 in Stock Add to Cart

IMPORTANT NOTE: When stock status reads "contact us," the lead time could range from 6 to 16 weeks, model dependent. Please contact the factory for more details.

  • 04IV Wiring Diagram
  • 04RD Wiring Diagram
  • Dimensions