AD-AAB 20 GX
Description
The AD-AAB 20 GX provides 2-channel output of analog signals.
The device communication is realized using the MODBUS RTU protocol.
The analog setpoints can be set via implemented MODBUS commands.
The power supply and the RS485 bus connection are possible via the rear DIN rail connector. The device is equipped with two rotary coding switches with which the bus address can be set on the device.
The operating voltage is indicated by a green LED.
The data communication is signaled with a yellow LED.
An optical search function allows the localization of a single device in a network. For this purpose, the green LED is set in a time-limited flashing mode, between 1 and 255 seconds.
As well as interface settings as well as the device address can be modified during operation by means of Modbus commands. All Modbus register addresses and associated commands are listed in the document attachment.
Application
Specification of analog process signals for control purposes.
Specific characteristics
- Two analogue outputs can be used as voltage or current input
- Galvanically isolated RS485 bus interface
- Parameterizable interface settings
- Hardware switch for device address
- Galvanically isolated switching power supply
- Can be parameterized with PC via AD Studio configuration software
- Status LED for operating voltage and data communication
- Optical search function
- Modbus master mode