The CB-A2DIO8X8 control board is designed to monitor up to 8 digital inputs and control 8 relay outputs. It is a programmable device suitable for industrial automation, designed for DIN rail mounting (9 DIN) and fits GAINTA D9MG cases.
The board features 2 analog inputs (12-bit ADC), NTC-10K temperature sensing, and dual RS485 ports for Modbus RTU communication.
| Parameter | Detail |
|---|---|
| Supply Voltage | 12V...24V DC |
| Relay Outputs | 8 (NO contacts), 5.0A @ 250VAC |
| Digital Inputs | 8 (Opto-isolated, 1.0MHz) |
| Analog Input 1 | 0-10V or 4-20mA (Jumper J15) |
| Analog Input 2 | NTC-10K Remote thermistor |
| Communication | 2x RS485 (Modbus RTU) |
| Operating Temp | -20°C to +70°C |
| Dimensions | 156.2 mm x 86.9 mm |
The board requires a 12-24V DC power supply. Connection points are clearly marked on the power connector (Figure 2 in manual).
Contains 4 pairs of NO relay outputs (8 independent relays). Connection groups: COM12 (Relays 1-2), COM34 (3-4), COM56 (5-6), and COM78 (7-8). Each contact supports up to 5A.
8 high-speed optically isolated inputs (1.0MHz). These can process both "receive" and "source" signals per pair.
Jumper J15: When closed, CH1 operates in 4-20mA mode. When open, it operates in 0-10V mode. CH2 is dedicated to NTC-10K sensors.
Two RS485 ports for Master/Slave daisy-chaining. If the device is at the end of the bus line, short terminal T to terminal B to activate the 120 Ohm terminator.
