SMAX MODBUS®
7 Programming parameters
7.1 Parameters available
Hereafter the parameters available for the Modbus encoders are listed and
described as follows:
Parameter name [Register address]
[Register number, data types, attribute]
The register address is expressed in hexadecimal notation.
The register number is expressed in decimal notation.
Attribute:
ro = read only access
rw = read and write access
7.1.1 Machine data parameters (Holding registers)
Machine data
parameters are accessible for both writing and reading; to read
the value set in a parameter use the
(reading of multiple registers); to write a value in a parameter use the
function code (writing of a single register) or the
(writing of multiple registers); for any further information
on the implemented function codes refer to the “6.4.1 Implemented function
codes“ section on page 49.
Resolution [0000 hex]
[Register 1, Unsigned16, rw]
This parameter is used to set a custom resolution (measuring step).
This register can be programmed only if the bit 0
Operating parameters [0003 hex]
item is set to “=1”; otherwise the system
will use the standard resolution “=10” = 0.1 mm (the encoder will provide 6,000
information for the whole travel when paired with the tape MTAX-680, 13 bits).
The resolution can be defined as the smallest change in the underlying quantity
that produces a response in the measurement, the response being the
information that is provided to output.
By default the resolution is 0.1 mm, thus the encoder provides max. 6,000
information (13 bits) for the whole travel, the measuring length of the MTAX-
680 scale being 600 mm.
You are allowed to set whatever value between 0.1 mm (10 hundredths of a
millimetre) and 1.25 mm (125 hundredths of a millimetre). The entered value has
to be expressed in hundredths of a millimetre.
MAN SMAX MB E 1.2
Programming parameters
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