AMETEK Lx Series II Programming Manual - Manual (Page 171)

Programming Manual Lx \ Ls Series II
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8.2.5 Message Format
The message sent to the AC Power System must have the following format for each parameter:
HHHDXXX---------------E±NND
Where:
H = Three letter mnemonic for each message header.
D = Optional header extension (A, B or C) to specify output (ref. Table 8-3)
X = Alpha, numeric or # for message header argument.
E = Optional ASCII E for exponent identification
± = Exponent sign
N = Exponent value 0 to ±63
D = Message string delimiter, (CR) (LF) or (LF)
More than one message header with its corresponding argument may be sent in one setup string
with a common delimiter.
8.2.6 Numeric Data Field
Parameter values may be sent as an unsigned value with a decimal point or a decimal point with
an exponent. The phase value may be sent as a signed value.
The Decimal Point for numeric data values may be either sent or inferred. The two following
ASCII strings will represent 115 volts.
AMP115
AMP115.0
There may be any number of digits following the decimal point, not to exceed the 256 byte DAM
buffer, but only the Least Significant Digit (LSD) of resolution will be recognized. The LSD for
amplitude is 0.1 volts. The LSD for frequency is either 0.01, 0.1 or 1 Hz for up to 99.99, 999.9 or
5000 Hz respectively.
Any parameter's numeric value may be of a mixed form with a decimal point and exponent. The
exponent may be a numeric, with or without leading zeros, up to a value of ±63. The following
ASCII strings will represent 115 volts:
AMP1.15E2
AMP1.15E+2
AMP1.15E+02
AMP1150E-1
A positive exponent value is represented by either an ASCII "+" or an unsigned value.