Allen-Bradley 1746-NO4I
Product Description
The Allen-Bradley 1746-NO4I is a 4-channel analog output module for the SLC 500 programmable logic controller (PLC) platform. It is a non-isolated module, meaning that the output channels are not electrically isolated from each other or from the power supply. This makes it ideal for applications where isolation is not required, such as driving actuators or valves.
The 1746-NO4I uses a 16-bit 2’s complementary binary format to represent the output values. This provides a resolution of 14 bits, which is more than sufficient for most applications. The module also has a non-linearity of 0.05%, which means that the output values are very accurate over the entire output range.
Product Parameters
- Number of Channels: 4
- Output Type: Current (0-20 mA)
- Resolution: 14 bits
- Non-linearity: 0.05%
- Accuracy: ±0.298% of full scale at +25° C (77° F)
- Load Range: 0 to 500 ohms
- Maximum Load Reactance: 100 μH
- Backplane Current Load: 55 mA @ 5V, 195 mA @ 24V
- Step Response @ 95%: 2.5 ms
Usage Methods
The 1746-NO4I is used to generate analog output signals to control devices such as actuators, valves, and motors. The output signals can be used to control the speed, position, or force of these devices.
To use the 1746-NO4I, it must be installed in an SLC 500 chassis. Once installed, the module must be configured using the RSLogix 500 programming software. The configuration parameters include the output range and the scaling factor.
Once the module is configured, it can be used to generate output signals by writing values to the corresponding data registers in the SLC 500 PLC. The PLC program can read values from sensors or other devices and use those values to calculate the desired output values.
Product Advantages
The 1746-NO4I offers a number of advantages over other analog output modules, including:
- High accuracy and resolution
- Fast step response time
- Non-isolated design for reduced cost and complexity
- Easy to configure and use
- Reliable and durable
Applications
The 1746-NO4I is suitable for a wide range of applications, including:
- Controlling actuators and valves in industrial automation systems
- Driving motors in robotics and machine control systems
- Generating analog signals for test and measurement systems
- Controlling lighting and other environmental systems
Overall, the Allen-Bradley 1746-NO4I is a versatile and reliable analog output module that is suitable for a wide range of applications.
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