ADA-DIOC40 module is the executive element, that extends control systems based on RS485-MODBUS bus with the ability to read status of circuits/devices, connected to digital input, and perform controls using the digital output. ADA-DIOC40 is dedicated to working together with PLC controllers, SCADA type software and devices supports MODBUS-RTU protocol. The module has one isolated digital input (marked on the case as DI+ and DI-), and one isolated digital output (marked on the case as DO+ and DO-).
The module can communicate with master devices in comunication modes like:
a/Signaling of DI status - after each change of the input status, the module sends a informing frame about that to the master device,
b/Modbus – the module is working like device Modbus SLAVE type
c/Signaling of DI status and Modbus - the module is working in two above modes simultaneously - this required connection 4-wire RS485 bus to the module and to the master device.
Terminal blocks 10-30VDC V+ and V- are used for power supply connection, and terminal blocks TX+/A, TX-/B, RX+, RX-, GND for RS485 bus connection.
The module has LEDs for signaling:
red LED - DI input status; yellow LED - DO output status; green LED - power supply PWR,
useful for diagnostic purposes. The module is mounting on DIN35 rail, according to DIN EN EN50022 norm.
Module configuration is via RS485/RS422 interface by the use ADAConfig software. There is also possibilities of changing the setting by the use MODBUS protocol.
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sales@cel-mar.pl 
