FC-SAO-0220M | Honeywell Safe analog output module

The safe analog output module SAO-0220m has two 0(4)—20 mA outputchannels for analog control applications. The load may only be resistive orcapacitive. Inductive loads will cause the analog output module to be reportedfaulty. The two analog outputs are galvanically isolated from the 24 Vdc and the5 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 outputvalue and an A/D converter which reads the output value. By using the A/Dconverter, 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 outputsEach analog output has a secondary means of de-energizing (SMOD).