FS-SAO-0220m Honeywell Safe Analog Output Module
Release time：2025/04/09/20:49:30
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The safe analog output module FS-SAO-0220M has two 0(4)—20 mA output channels for analog control applications. The load may only be resistive or capacitive. Inductive loads will cause the analog output module to be reported faulty. The two analog outputs are galvanically isolated from the 24 Vdc and the 5 Vdc. The 0 V 1 (d14) pin and 0 V 2 (d20) pin are interconnected on the module.Each analog output channel consists of a 12-bit D/A converter for the output value and an A/D converter which reads the output value. By using the A/D converter, it is possible to check the correct functioning of the output channel.
Within the configured Diagnostic Test Interval, the analog outputs are tested for:
• Correct output value (current value ± 5%)
• Ability to de-energize
• Cross talk between analog outputs
Each analog output has a secondary means of de-energizing (SMOD). This enables the watchdog and the processor to de-energize the outputs, irrespective of the result of the application value.
