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MM8AO - ANALOG OUTPUTS
The MM8AO is a 8 channel current output module. Each channel can be set to output a current in the range 0 - 20mA. The outputs are isolated from the logic and share a common negative terminal. The resolution is 12 bits, so writing a value to the Modbus register for each output of 0 - 4095 would give an output current of 0 - 20mA. A value of 819 ± 1LSB will give a current output of 4mA. The module may be used as either a slave or master on the Modbus network. When used with a PC or PLC the module will be configured as a slave. When used with a MM8AI module in a point-to-point configuration, the DIP switch 9 must be turned on to set the module up as a master. In this mode the MM8AO module will automatically read the information from the MM8AI module and write the input status to the outputs. When used as a slave module, the outputs are written to by the Modbus master device such as a PC or PLC.
Power Supply: Logic 10 - 26 Vdc @ 50 mA Field 10 - 26 Vdc @ 185 mA Outputs: Current 0(4) - 20 mA Resolution 12 bits Isolation 1500Vrms between field and logic Drift 100ppm/°C typ. Accuracy 0.05% of span Compliance 1000 ohms max. @ 24Vdc 500 ohms max. @ 12Vdc Connector: 11 Pin Connector on rear of unit 10 Way screw connector on front
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