Parker AC30V Series, Manual

Page: 156 / 337

Modbus TCP
A-4
AC30V series Variable Speed Drive
String Array Example
A string array parameter called My String Array has 2 elements of string length 5 characters (plus the null terminator) each. In this example the
parameter number of the whole array is 175.
If the values of the array elements are “12345” and “abc”:
Parameter
Number
Represents Register
Number Register Value
hi-byte lo-byte
0175 whole array
[“12345”, “abc”]
00877 ‘2’ ‘1’
00878 ‘4’ ‘3’
0176 1
st
element
“12345”
00879 ‘2’ ‘1’
00880 ‘4’ ‘3’
0177 fragment
“1234”
00881 ‘2’ ‘1’
00882 ‘4’ ‘3’
0178 fragment
“5”
00883 null ‘5’
00884 undefined undefined
0179 2
nd
element
“abc”
00885 ‘b’ ‘a’
00886 null ‘c’
0180 fragment
“abc”
00887 ‘b’ ‘a’
00888 null ‘c’
0181 fragment
“”
00889 undefined undefined
00890 undefined undefined
Note: This is an example parameter.
To access the first element of the array over Modbus then parameter number 0177 (register 00881 ) would be used. To access the second element
then parameter number 0180 (register 00887 ) would be used.