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Chapter 4
Setting Up Communications
Linking the PLC with the HI 1756-FC Feeder Control Module
To set parameters for the weigh scale module, you must establish communications with a
ControlLogix PLC. Follow the steps below to set up the communication link. You will
need a new or open RS Logix® 5000 project. For instructions, see your RS LOGIX 5000
manual.
Step 1.
Look for a list of folders on the left side of the screen. Scroll to and select the
I/O Config folder, which will open a menu.
Step 2.
Select New Module to display a list of modules.
Step 3.
Select the Generic 1756 module to open the
Module Properties form.
Step 4.
Enter the following connection parameters in
the appropriate fields:
Name of Module
Description of Module (Optional)
Slot ID
Input Assembly Instance:101 Size = 32
Output Assembly Instance: 100 Size = 32
Configuration Assembly Instance: 102
Size = 200
Step 5.
Select DATA INT from the Comm Format
pull-down list.
Module Properties Dialog Showing General tab
Step 6.
Open the Connection Tab.
Step 7.
Set the RPI to 20 milliseconds or greater. Do not set this parameter lower than
20 milliseconds.
Step 8.
Click Finish.
