20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786 page: 4
Tel: (860) 585-1254 Fax: (860) 584-1973 Web: www.amci.com
ControlLogix 7252 LDT Interface Manual
Revision 1.5
Chapter 1: INSTALLING THE 7252 MODULE
Configuring the ControlLogix System
1.
Open RSLogix 5000 and the project in which you want to install the AMCI 7252 module.
2.
Right click on I/O Configuration in the Project Tree.
3.
Select New Module.
4.
Select the following module type and description from the list that appears.
Type = 1756-MODULE
Description = Generic 1756 Module
5.
Click on OK.
6.
Enter the following module properties.
Name: Your Choice (must begin with a letter)
Description: Your Choice
Comm Format: Data-DINT (must be Data-DINT)
Slot: location of 7252 module
7.
Enter the Connection Parameters from the following table. Please note that the 7252 module can be configured in
two ways, depending on how many channels are being used. Disabling the unused channel is recommended
because the module will stop all activities associated with the unused channel, which will improve the throughput
time.
Owner Controller
Listen Only
Parameter
Assembly
Instance
Size in 32 bit
words
Assembly
Instance
Size in 32 bit
words
1 Channel
INPUT
101
5
101
5
OUTPUT
111
2
115
1
CONFIGURATION
1
0
5
0
2 Channels
INPUT
102
10
102
10
OUTPUT
112
4
115
1
CONFIGURATION
2
0
5
0
The Owner Controller setup will be used in most instances. The Listen Only setup should only be used by the
listening processor(s) in systems with more than one PLC. Please note that the RPI time of the Listen Only
processor must be greater than or equal to the RPI of the Owner Controller, and the number of channels on the
Listen Only processor must match the number of channels on the Owner Controller.
8.
Click on Next >
9.
Set the RPI (Rate Packet Interval) Time to the desired value. For the 7252 module, the RPI parameter has a range
of 0.5 to 28ms, with a recommended RPI time of 5ms.
10.
Click on Finish >>
The module should now appear in the project tree. The Input data will be referenced as Local:X.I.Data[Y] and the
output data will be referenced as Local:X.O.Data[Y] where “X” is the slot number and “Y” is the word number.
