Emerson Rosemount 370XA System Reference Manual page 109

System Reference Manual
7P00370-H01
Modbus ID
Identification number of the Modbus device used by a host device to
communicate with the GC.
Baud Rate
The baud rate setting. Can be set to one of the following:
•
•
•
•
•
•
Data Bits
The number of data bits. For RTU communication this is typically set
to 8 bits, and for ASCII mode this is typically set to 7 bits.
Stop Bits
The number of stop bits. This can only be set to 1 in the 370XA.
Parity
The parity check method. For RTU mode, this should be set to NONE.
For ASCII mode, this can be set to EVEN or ODD.
MAP File
The name of the Modbus MAP file being used by the port. The
SIM_2251 modbus map is the same registers as the legacy Model
500/2350A C6+ application that is commonly pre-configured in
custody transfer flow computers and RTU systems and uses the
"Daniel" modbus message format.
The "default Map" is a fully configurable modbus map that uses the
MODICON message format.
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370XA Gas Chromatograph
APRIL 2014