
ALLEN BRADLEY PLC
DIGITAL INPUT SUBSCRIBER (FC 185)
A - 6
WBPEEUI240759A0
®
S6
Specification S6 defines the last two low order bytes of the PLC
device IP address. The IP address is in the format:
xxx.xxx.yyy.yyy
The specification is set to a decimal value derived from the
binary equivalent of yyy.yyy.
Example
IP address = 151.89.202.127. The last two bytes (202.127) convert to a
binary equivalent of:
1100101001111111
The decimal equivalent is 51,839 which is the value to enter in S6.
S8
Specification S8 defines the scan class to request data. This
field must be entered in binary format.
Scan class:
00 = 125 milliseconds
01 = 250 milliseconds
10 = 500 milliseconds
11 = 1 seconds
S9
Specification S9 defines the Allen Bradley element number (or
register address); range is from 0 to 999.