B - programming examples, Sample programs for the input module, Plc-3 family processors – Rockwell Automation 1771-IXHR , D17716.5.80 HIGH RESOL.THERMOCOUPLE User Manual
Page 51: Programming examples
Appendix
BĆ1
Programming Examples
The following are sample programs for entering data in the configuration words
of the write block transfer instruction when using the PLC–3 or PLC–5 family
processors.
Following is a sample procedure for entering data in the configuration words of
the write block transfer instruction when using a PLC–3 processor. For a
complete sample program, refer to Figure 4.2.
To enter data in the configuration words, follow these steps:
Example:
Enter the following rung for a write block transfer:
EN
BTW
RACK:
GROUP:
MODULE
DATA:
001
1
1 = HIGH
F0003:0000
DN
ER
LENGTH: 27
CNTL: FB004:0000
BLOCK XFER WRITE
CNTL
CNTL
CNTL
13
15
12
Power Up Bit
F0003:0000 is the address of the write block transfer data file. You want to
enter/examine word 1.
1. Press [SHIFT][MODE] to display your ladder diagram on the industrial
terminal.
2. Press DD,03:0[ENTER] to display the block transfer write file.
The industrial terminal screen should look like Figure B.2. Notice the
highlighted block of zeroes. This highlighted block is the cursor. It should be in
the same place as it appears in Figure B.2. If it is not, you can move it to the
desired position with the cursor control keys. Once you have the highlighted
cursor in the right place, you can go on to step 3.
3. Enter the data corresponding to your bit selection in words 0 through 4.
Sample Programs for the Input
Module
PLC-3 Family Processors