Setup guide

Chapter 3 Driver and Protocol Objects
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Automationdirect.com 3-17 Object Reference Manual
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.
R:0_UL - R999:999_UL logical yes yes Control “unload” single-bit logical
indicator.
S:0 - S:127 numeric yes yes PLC status file containing a signed
integer ranging from –32,768 to
+32,767 (see Allen-Bradley
documentation).
S:0_0 - S:127_15 logical yes yes Individual PLC status bits (see
Allen-Bradley documentation).
ST9:0 - ST255:255 text yes yes String, limited to 83 characters in
length. See the note on Allen-Bradley
string data members at the end of this
table.
T:0.ACC -
T999:999.ACC
numeric yes yes Accumulated timer value ranging from
–32,768 to +32,767.
T:0.PRE -
T999:999.PRE
numeric yes yes Preset timer value ranging from
–32,768 to +32,767.
T:0_DN - T999:999_DN logical yes yes Timer “done” single-bit logical
indicator.
T:0_EN - T999:999_EN logical yes yes Timer “enabled” single-bit logical
indicator.
T:0_TT - T999:999_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 PLC
device.
Table 3-4. AB_PLC5 Data Members (Continued)
Data Member Type Read Write Description