3DI477.6 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
Current response time:
4 Minutes
5 Seconds
The B & R Automation 3DI477.6 is a digital input module in the System 2005 Controllers series and features 32 inputs with group isolation. It uses a DSUB connection type, supports both source and sink input wiring, and operates at a nominal input voltage of 24 VDC. The module has a single-width design, provides base and expansion unit mounting, and has a protection rating of IP20.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The 3DI477.6 digital input module is manufactured by B & R Automation for the System 2005 Controllers series. It extends a controller with discrete sensing capability, transferring on-machine status signals to the PLC for deterministic sequence control in packaging lines, material handling stations, or process skids. The module snaps onto the common carrier next to the base CPU, using the system bus to exchange data and share the internal supply so that no separate wiring harness is required for logic power.
Its field side accepts a nominal supply of 24 VDC, and the board distributes this voltage across 32 inputs that are organized into 8 input groups. Each channel is optically decoupled from the backplane. Group isolation is provided, but channels within the same group are not isolated from one another. Galvanic separation between the field side and the PLC core helps prevent noise coupling. With a typical delay of 1 ms and a maximum delay of 1.2 ms, the card can register fast sensor edges while still filtering contact bounce. These inputs share a DSUB front connector that simplifies ribbon-cable termination, and the base electronics impose no additional load beyond the stated timing characteristics.
The card draws 1.5 W at 5 VDC from the internal rail, which represents its total power consumption, so thermal load on densely packed racks is minimal. Despite the modest power draw, the electronics are enclosed in a single-width housing that conserves slot space and meets the cabinet ingress standard of IP20. Field wiring may be arranged as sink or source wiring, giving designers flexibility when mixing sensor types. The module attaches directly to the base unit and can also clip onto expansion carriers, allowing distributed layouts inside larger enclosures without additional brackets.
Frequently Asked Questions about 3DI477.6:
Q: How many digital inputs does the 3DI477.6 controller module support?
A: The 3DI477.6 offers 32 digital inputs, allowing it to handle multiple signals simultaneously.
Q: What is the nominal input voltage required for the 3DI477.6?
A: This model provides a nominal input voltage of 24 VDC for its digital input channels.
Q: Does the 3DI477.6 allow input wiring as sink or source?
A: The 3DI477.6 module supports both sink and source wiring configurations for inputs.
Q: What isolation features are implemented in the 3DI477.6 module?
A: It features group isolation and input-to-PLC isolation but does not provide same-group isolation.
Q: What type of connection does the 3DI477.6 utilize for input wiring?
A: This input module is designed with a DSUB connection type for reliable interfacing.
