Programme a DI Point into an S-UNC-AI Card

[Product_Support]

Issue

How to configure a Digital Input (DI) object using an Analogue Input (AI) hardware location on an S-UNC-AI Card.

Product Line

Satchwell BAS & Sigma

Environment

• Satchwell S-UNC-AI Card
• Satchwell Sigma

Cause

The S-UNC-AI Card allows for flexible configuration where a DI object can be programmed at an AI hardware location. This is useful when digital input functionality is needed but only analogue input terminals are available.

Resolution

For Latest AI Cards (Production Code: 200705 and newer):

• No additional hardware is required.
• Ensure the board is configured for “Resistive” mode.
• The software will correctly interpret the input as digital.

For Older AI Cards:

• A Digital Input Module (579-1-359) was previously required.
• Note: This module is now obsolete and no longer supported.