Programmer (HHP) User guide

Chapter 5
Quick Start for New Users
5–10
Monitoring the Data
Next you will monitor the input and output data files. These files contain
bits corresponding to the I/O screw terminals of the controller.
1. From the program monitor, go to rung 1. You can access this rung by
entering the rung number as shown here:
ENT
1
MON
R 0 0 1
B
/
0 0
2. Access the data monitor for the first instruction on the rung (B/0).
ENT
MON
B / 0 B 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3. Set the cursored bit to 1.
1
B / 0 B 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Notice that the bit is set to 1 as soon as the key is pressed.
4. Now access the output data file.
O
MODE
ENT
MON
/ 0 O 0
0 0 0 0 0 0 0 0 0
1 0 0 0 1
Notice that bits O/1 and O/5 are set to 1. These bits turned on when you
set bit B/0 to 1.