Setup guide

Chapter 3 Driver and Protocol Objects
Object Reference Manual 3-14 www.Automationdirect.com
Note
There is no Allen-Bradley default file type associated with strings. You must
configure your Allen-Bradley device to have a string file. See your Allen-Bradley
documentation for details on this configuration procedure.
The string data member only works with the SLC 500 Enhanced series of PLCs, including
the SLC 5/03; OS301 and SLC 5/04., and with the PLC 5 Enhanced series, PLC 5/11, PLC
5/20, PLC 5/30, PLC 5/40, PLC 5/60, PLC 5/80.
T:0.ACC -
T255:255.ACC
numeric yes yes Accumulated timer value ranging
from –32,768 to +32,767
T:0.PRE -
T255:255.PRE
numeric yes yes Preset timer value ranging from
–32,768 to +32,767
T:0_DN - T255:255_DN logical yes yes Timer “done” single-bit logical
indicator
T:0_EN - T255:255_EN logical yes yes Timer “enabled” single-bit logical
indicator
T:0_TT - T255:255_TT logical yes yes Timer “timing” single-bit logical
indicator
Update logical yes no Object-generated signal that pulses
each time the object polls the device
Table 3-4. AB_PLC5 Data Members
Data Member Type Read Write Description
B:0 - B999:999 numeric yes yes 16-bit signed binary word ranging
from –32,768 to +32,767
B:0_0-B999:999_15 logical yes yes One bit within a 16-bit binary word.
B_0 - For B999_15999 logical yes yes One bit within the specified datafile;
for example, B3_32 specifies datafile
3, word 2, bit 1.
C:0.ACC -
C999:999.ACC
numeric yes yes Counter accumulated value. Two-byte
signed word ranging from –32,768 to
+32,767
C:0.PRE -
C999:999.PRE
numeric yes yes Preset counter value ranging from
–32,768 to +32,767.
Table 3-3. AB_SLC500 Data Members (Continued)
Data Member Type Read Write Description