Modbus coils and input status values are both single-bit values. The Serial Card treats both types of values the same with regard to data mapping. The mapping details for each data type are described in the following table.
DeltaV Data Type |
Mapping Method |
|---|---|
Boolean |
The card maps each coil or input status value directly to a single Boolean value with no data conversion. |
Discrete, signed integer, unsigned integer, and floating point |
The card sets the integer or floating point value to 0 if the coil or input status bit has a value of 0 or to 1 if the coil or input status bit has a value of 1. |
String |
Not supported. |