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The GE-Emerson IC693ALG390 2-Channel Analog Voltage Output Module for the Series 90-30 Programmable Logic Controller provides two output channels, each capable of converting 13 bits of binary (digital) data to an analog output for use as required by your application. The Analog Voltage Output module is capable of providing outputs in the range of –10 to 10V. Resolution of the converted signal is 12 bits binary plus sign which is effectively 13 bits (1 part in 8,192). Both channels are updated on every scan (about 5 milliseconds). User data in the %AQ registers is in a 16-bit 2’s complement format. The 13 most significant bits from the %AQ register are converted to sign magnitude by the PLC and sent to the module for use by the D/A converter circuitry.
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