
196
Reference Manual
00809-0100-4811, Rev DA
Appendix C: Rosemount 3300 Series with HART
®
to Modbus
®
Converter
January 2015
Rosemount 3300 Series with HART
®
to Modbus
®
Converter
C.10.1 Input registers
The register area starting with 1300 can be configured to have any of the four format codes. The
configuration is done by setting FloatingPointFormatCode register (holding register 3000) to
0-3, as shown in Ta bl e C -1 1. This configuration can be done with the Rosemount Radar Master
program.
Note
Depending on the slave number the 3300 transmitter is using, different registers must be used
with the default slave number being 1. Slave number is determined by the HART address.
Table C-12. Output Variables for the Configurable Floating Point Format (default code 1)
The Rosemount 3300 Series register area starting with register 2000 is used for hosts that
require Floating Point Format Code 0 (see Tabl e C -1 3).
Floating Point Format Codes 2 and 3 use register areas 2100 and 2200, respectively (see
Tab le C -1 4 and Ta ble C -1 5).
Register name Register number Note
Slave 1 Status Conf 1300
Bit information in bitfield.
Bit 0: Invalid Measurement Slave 1 PV.
Bit 1: Invalid Measurement Slave 1 Non PV.
Bit 2: Invalid Measurement Slave 1 Non PV.
Bit 3: Invalid Measurement Slave 1 Non PV.
Bit 14: HART bus busy (slave in burst or other master
present)
Bit 15: HTM Task not running (option not available).
Note: Bit 1-3 is set when Invalid Measurement of Slave
1 Non PV. i.e. all three bits are set simultaneously.
Slave 1 PV Conf 1302
Primary variable from slave 1 represented in IEEE 754
format, using the byte order set in the
FloatingPointFormatCode register.
Slave 1 SV Conf 1304
Secondary variable from slave 1 represented in IEEE
754 format, using the byte order set in the
FloatingPointFormatCode register.
Slave 1 TV Conf 1306
Tertiary variable from slave 1 represented in IEEE 754
format, using the byte order set in the
FloatingPointFormatCode register.
Slave 1 FV Conf 1308
Fourth variable from slave 1 represented in IEEE 754
format, using the byte order set in the
FloatingPointFormatCode register.
Slave 2 data 1310-1318 Same data as for Slave 1.
Slave 3 data 1320-1328 Same data as for Slave 1.
Slave 4 data 1330-1338 Same data as for Slave 1.
Slave 5 data 1340-1348 Same data as for Slave 1.
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