Page 110 SMV800 Modbus User's Guide Revision 1.0
3.2.7. Registers for process variables
A complete register map, including coils, holding, floating point and diagnostics are found
later in this section. The register map for the process variables has been designed such that
all dynamic process information can be obtained with a single read. The registers that
provide this capability are shown in Table 3-4. In the event of sensor malfunction, the
transmitter will return “NAN” (Not A Number) for the numeric value.
Table 3-4: Modbus Register for Process Variables