Allen-Bradley 1756-IV32 ControlLogix 32-Point Sourcing Input Module
The 1756-IV32 is a ControlLogix digital DC input module manufactured by Allen-Bradley / Rockwell Automation. It provides 32 sourcing input points operating across a 10 to 30 VDC voltage range. Designed for high-density field signal monitoring, the module interfaces standard 24 VDC PNP output devices—such as proximity switches, photoelectric sensors, and limit switches—directly to a ControlLogix programmable automation controller.
Channel Grouping and Electrical Isolation
The 1756-IV32 organizes its 32 channels into two isolated groups of 16 points each. Because the inputs operate in a sourcing configuration, the module supplies positive voltage from the common terminal to connected field devices, receiving return signals through individual input channels.
Key installation and electrical features include:
- Dual Group Architecture: Divided into 16 points per group, allowing separate field power supply wiring and electrical isolation between groups.
- Low Current Draw: Draws only 120 mA from the backplane at 5 VDC and 3.5 mA from the backplane at 24 VDC.
- Removable Terminal Block (RTB): Connects using standard 36-pin RTB units (1756-TBCH or 1756-TBS6H) for pre-wiring and rapid hot-swappable module replacement.
Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-IV32 |
| Brand | Allen-Bradley / Rockwell Automation |
| Product Type | Digital Sourcing Input Modules |
| Number of Inputs | 32 Points |
| Channel Grouping | 16 Points per Group |
| Input Type | Sourcing (PNP Compatible) |
| Operating Voltage Range | 10 to 30 VDC |
| Backplane Current (5 VDC) | 120 mA |
| Backplane Current (24 VDC) | 3.5 mA |
| Compatible Removable Terminal Block | 1756-TBCH, 1756-TBS6H |
| Weight | 0.99 lbs (0.45 kg) |
Frequently Asked Questions
Q: What type of field devices connect to the 1756-IV32 sourcing input module? A: The 1756-IV32 requires sourcing input signals (PNP outputs), connecting to devices that source current to the module input terminals within a 10 to 30 VDC voltage range.
Q: Does the 1756-IV32 come with a terminal block included? A: No, standard ControlLogix I/O modules ship without terminal blocks. A 36-pin Removable Terminal Block (RTB), such as the 1756-TBCH or 1756-TBS6H, must be ordered separately.
Allen-Bradley 1756-IV32 ControlLogix 32-Point Sourcing Input Module
Allen-Bradley 1756-IV32 ControlLogix 32-Point Sourcing Input Module
The 1756-IV32 is a ControlLogix digital DC input module manufactured by Allen-Bradley / Rockwell Automation. It provides 32 sourcing input points operating across a 10 to 30 VDC voltage range. Designed for high-density field signal monitoring, the module interfaces standard 24 VDC PNP output devices—such as proximity switches, photoelectric sensors, and limit switches—directly to a ControlLogix programmable automation controller.
Channel Grouping and Electrical Isolation
The 1756-IV32 organizes its 32 channels into two isolated groups of 16 points each. Because the inputs operate in a sourcing configuration, the module supplies positive voltage from the common terminal to connected field devices, receiving return signals through individual input channels.
Key installation and electrical features include:
- Dual Group Architecture: Divided into 16 points per group, allowing separate field power supply wiring and electrical isolation between groups.
- Low Current Draw: Draws only 120 mA from the backplane at 5 VDC and 3.5 mA from the backplane at 24 VDC.
- Removable Terminal Block (RTB): Connects using standard 36-pin RTB units (1756-TBCH or 1756-TBS6H) for pre-wiring and rapid hot-swappable module replacement.
Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-IV32 |
| Brand | Allen-Bradley / Rockwell Automation |
| Product Type | Digital Sourcing Input Modules |
| Number of Inputs | 32 Points |
| Channel Grouping | 16 Points per Group |
| Input Type | Sourcing (PNP Compatible) |
| Operating Voltage Range | 10 to 30 VDC |
| Backplane Current (5 VDC) | 120 mA |
| Backplane Current (24 VDC) | 3.5 mA |
| Compatible Removable Terminal Block | 1756-TBCH, 1756-TBS6H |
| Weight | 0.99 lbs (0.45 kg) |
Frequently Asked Questions
Q: What type of field devices connect to the 1756-IV32 sourcing input module? A: The 1756-IV32 requires sourcing input signals (PNP outputs), connecting to devices that source current to the module input terminals within a 10 to 30 VDC voltage range.
Q: Does the 1756-IV32 come with a terminal block included? A: No, standard ControlLogix I/O modules ship without terminal blocks. A 36-pin Removable Terminal Block (RTB), such as the 1756-TBCH or 1756-TBS6H, must be ordered separately.
