Can the analogue output on SED2 be used as a binary output?
Yes, with certain restrictions, using BiCo.The analogue output cannot be directly connected to one of the binary status bits. It is only possible to connect it directly to analogue display values. It is however possible to use BiCo to detect the change of a state of a bit as follows:Example: To view bit 52.3 P1000 = 3 (fixed frequencies cannot be used as a setpoint source) P1001 = 50.0 Hz. (fixed frequency 1) P1016 = (selection of fixed frequency is binary coded) P1020 = 52.3 (enable fixed frequency 1 with but 52.3)P0771 = 1024 (display fixed frequency total at analogue output)This works as follows:When 52.3 is binary hi (1), the value in P1001 is transferred to r1024 using the normal fixed frequency mechanism. The frequency however is not actively used as a set point (p1000). By connecting the value of r1024 to the analogue output using P0771, we get 20mA when bit 52.3 is 1 and 0mA when bit 52.3 is 0. This method can be used for any bit from a BiCo connectable bit parameter.
