Hardy HI 1746-WS User Manual
Page 49
Chapter 4 - Setup
4-19
A version of the ladder logic is contained in the HI
WS 100 Configuration Software Manual. All
addresses are arbitrary in the ladder logic example
and may need to be changed to match the hardware
configuration of your system and to prevent conflicts
in addressing.
In the Ladder Logic example provided in the HI
WS100 manual note the following:
•
N9 is the data file for the data written
to and read from the module and the
trigger bit.
•
The ladder logic program needs 17
contiguous words in the data file,
which are:
1.
N9:0 is the write trigger
2.
N9:1 to N9:8 are write data loca-
tions.
3.
N9:9 to N9:17 are read data loca-
tions.
NOTE:
These can be from an integer file with 17 contiguous
words available.
4.
N10 is the data file for setting up
sections of the M files.
5.
N10:0 sets a section of the M file
as read.
6.
N10:1 sets the length
7.
N10:2 sets the address.
8.
N10:5 sets a section of the M file
as write
9.
N10:6 sets the length
10. N10:7 sets the address
11. N10:10 to N10:19 are locations
used for checking status
NOTE:
Refer to Allen-Bradley 1747 Scanner module manual
for more information on the setup of M files.