MFET 243 Lab5 Fall 09

MFET 243 Lab5 Fall 09 - MFET 243 Laboratory Assignment #5...

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MFET 243, Lab #5 page 1 of 17 MFET 243 Laboratory Assignment #5 Fall ’09 Introduction to DeviceNet Objectives: After successfully completing this assignment, you will gain insight into: 1) The MFET conveyor system . You will become familiar with the basic operation of the devices (photo-eyes, product stops, shot pins, etc.) used on each dropline of the MFET conveyor system. 2) The DeviceNet local area network (LAN) . The field devices used on the MFET conveyor system are wired to the ControlLogix PLCs using DeviceNet. Each dropline functions as an independent DeviceNet network. In addition, you will : Expand your PLC template program by adding the 1756-DNB DeviceNet scanner module to the I/O configuration folder. Create alias tags for DeviceNet I/O. Get familiar with the basic operation of the MFET conveyor system. Preparation: It is assumed that your instructor has delivered a presentation on DeviceNet. Refer to the presentations entitled “Introduction to DeviceNet” and “Using DeviceNet on the MFET Conveyor.” It is assumed that you have completed the following laboratory assignments: Lab #1 - Working with Local I/O Lab #2 - Working with Universal Remote I/O Lab #3 - Using RSLogix 5000 Lab #4 - Basic Instructions
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MFET 243, Lab #5 page 2 of 17 Background: In laboratory assignment #1 the template PLC program was created by adding the following modules to the I/O Configuration folder: The discrete AC input module located in slot 6. The discrete AC output module located in slot 7. The AC input and output modules are considered local I/O since they reside in the same chassis as the Logix5555 controller. The alias tags shown in table 1 were created and tested. Table 1 – Alias Tags Created for Local I/O in Lab #1 Field Device Base Address Alias Name Description Pushbutton 0 Local:6:I.Data.0 I_PB0 Pushbutton 0 Pushbutton 1 Local:6:I.Data.1 I_PB1 Pushbutton 1 Pushbutton 2 Local:6:I.Data.2 I_PB2_no Pushbutton 2 (N.O.) Pushbutton 2 Local:6:I.Data.3 I_PB2_nc Pushbutton 2 (N.C.) Selector Switch 0 Local:6:I.Data.4 I_SS0_Pos_A Selector Switch 0 (POS A) Selector Switch 0 Local:6:I.Data.5 I_SS0_Pos_B Selector Switch 0 (POS B) Red Pilot light Local:7:O.Data.0 O_Red_PL Red pilot light Amber Pilot light Local:7:O.Data.1 O_Amber_PL Amber pilot light Blue Pilot light Local:7:O.Data.2 O_Blue_PL Blue pilot light In laboratory assignment #2 the PLC template program was expanded in order to include Allen- Bradley’s pushbutton RediPANEL. The 1756-DH/RIO module and the pushbutton RediPANEL were added to the I/O Configuration folder of the template program and then alias tags for the pushbutton RediPANEL were created and tested. In this assignment the template PLC program will again be expanded in order to incorporate DeviceNet I/O. All of the field devices (photo-eyes, motor starter, inductive proximity switches, solenoid valves, etc) that reside on the MFET conveyor system are wired to ControlLogix PLCs using DeviceNet. In order to develop PLC programs that control the MFET conveyor system, a PLC programmer has to
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MFET 243 Lab5 Fall 09 - MFET 243 Laboratory Assignment #5...

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