Bit definitions for the 2085-OF4 expansion module
The following table introduces the bit definitions for the 2085-OF4 expansion module.
Item | Description | |
---|---|---|
CRC | CRC error | Indicates a Cyclic Redundancy Check (CRC) error in received data. It is cleared upon the receipt of valid data. All channel fault bits (S <x> ) are set. |
E <x> | Error | Indicates that there is a Digital-to-Analog Converter (DAC) hardware error or a broken wire or high load resistance that is associated with the channel. An error code might display on one of the input words from 0 through 3. The channel is turned off until a CE <x> bit is written during the Run mode to clear the DAC hardware error bits. |
GF | General Fault | The bit is set (1) when the following faults occur:
All channel fault bits (S <x> ) are set. |
O <x> | Over-Range Flag | Indicates that the controller is attempting to drive the analog output above its regular operating range or above the channel's high clamp level. If the clamp levels are not set for the channel, the module continues to convert analog output data to a maximum full range value. |
PU | Power Up | Indicates that an unexpected MCU reset has occurred during Run mode. All channel error bits (E<x> ) and fault bits (S<x> ) are set. The module stays connected, yet it operates without configuration data.The PU and channel fault bits are cleared upon downloading a valid configuration. |
S <x> | Channel Fault | Indicates that there is an error that is associated with the channel. |
U <x> | Underrange Flag | Indicates that the controller is attempting to drive the analog output below the regular operating range or below the channel's specified low clamp level. |
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