EZT-570S User Communication Reference Manual
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The control registers are grouped into three blocks of 60 (for a total of 180) registers relating to the
specific types of data they contain. The first group of 60 registers (0 – 59) contains the configuration
settings for various options on the EZT-570S as well as all of the alarm status, ramp/soak program
status and manual on/off settings for the chamber. The second group of 60 registers (60 – 119)
contains all of the loop control/monitor settings which include the set point and alarm settings for each
loop. The third group of 60 registers (120 – 179) contains all of the optional monitor input settings
including the individual alarm settings for each.
Bit Oriented Parameters
Some of the values contained in the EZT-570S’s register base contain bit oriented values. This
means that each bit of the word indicates an on/off status for a specific setting or condition. In
handling these values, it is recommended that the word be converted to its binary equivalent.
By converting the value to its binary equivalent, it produces a Boolean array of true [bit on (1)] and
false [bit off (0)] values. This allows each bit to be examined individually. In the same manner,
creating a Boolean array of 16 bits produces an equivalent decimal value that can be sent to the EZT-
570S in order to set a control value.
For the purpose of this manual, parameters defined as bit oriented will have the function of each bit
associated with the bit’s index number in the data word. The index number is equal to that of a
typical array function. Thus, an index number of zero, selects the first bit in the word. An index
number of 1 selects the second bit in the word, and so on. This helps eliminate offset selection errors
that may occur when coding software and using array functions to select which bit in the word that is
required for examination.
