System components: Analog output module SFC446

The SFC446 current and voltage output module provides 4 analog outputs that can be either current or voltage signals. The current outputs can be individually configured in ranges of 0-20 mA or 4-20 mA. Voltage output ranges are as follows: ±10 V, 0 -10 V, ±5 V, 0 - 5 V and 1 - 5 V. When used in voltage mode, the group of ranges must be configured via the DIP-switches located within the casing at the top and bottom of the module. These can be accessed externally with a small screw driver or other pointed object. In order to feed conventional analog, discrete and pulse signals into the control system and to provide facilities for controlling valves, starters, pumps, switches etc., a number of local I/O modules can be added to the Field Controller rack assembly. The modules are addressed by means of a channel number in a special Field Controller hardware transducer block and, depending upon type and function, connected to the fielbus system by means of multiple or standard input and output blocks. Depending upon I/O type, an Analog or Discrete Multiple function block provides a connection for up to 16 input or output signals.

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