Rockwell Automation 1772-LP3 PLC - 2/30 Programmable Controller Programming and Operations Manual - Manual (Page 113)

Timer and Counter Instructions
Chapter 5
5Ć15
The default word address can be 3, 4 or 5 digits provided the data table is
sized accordingly. Unlike bit instructions, the [EXPAND ADDR] key is
not required. Instead, the industrial terminal automatically enters a 4- or
5-digit default word address depending on the data table size. When a 4-
or 5-digit word address is displayed and a 3- or 4-digit word address is
required, the programmer must enter leading zeros before the word
address.
Table 5.A
Timer/Counter Default Word Address
# I/O Racks T/C Address
1
2
3
4
5
6
7
010
030
040
050
060
070
200