ABB 07AC91 analog I/O module

ABB 07AC91 analog I/O module

The 07AC91 is a high-performance industrial automation analog I/O module produced by ABB and belongs to the AC31 series.

Electrical parameter
Input voltage: 24V DC.
Output voltage: 0-10VDC.
Number of input channels: Supports 8 analog input channels, each supporting 4-20mA or 0-10VDC signals.
Number of output channels: Support 8 analog output channels, each channel maximum output current of 0.5A, maximum output voltage of 5V.

Performance parameter
Operating temperature range: -20°C to + 70°C.
Protection level: IP20.
Size: 100mm x 70mm x 35mm.
Weight: About 0.5kg.
Communication interface: Modbus.
Special features: Support thermocouple input for complex industrial applications.

Other parameters
There are two modes of operation, configured by DIL switch. In “12-bit mode”, there are eight input channels, which can be individually configured as ±10V or 0-20mA, with 12-bit resolution, and eight output channels, which can also be individually configured as ±10V or 0-20mA, with 12-bit resolution. In “8-bit mode”, 16 channels can be configured as input or output in pairs, 0-10V or 0-20mA, 8-bit resolution.

The module is mainly used to convert analog signals to digital signals for PLC processing, or vice versa, and is widely used in process control, machine control, testing and measurement in industrial automation systems, such as energy management, environmental monitoring and so on