SAQA

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SOUTH AFRICAN QUALIFICATIONS AUTHORITY

REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE:

Demonstrate an understanding of basic programmable logic controllers

SAQA US ID	UNIT STANDARD TITLE
113899	Demonstrate an understanding of basic programmable logic controllers
ORIGINATOR
SGB Engineering
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-
FIELD			SUBFIELD
Field 06 - Manufacturing, Engineering and Technology			Engineering and Related Design
ABET BAND	UNIT STANDARD TYPE	PRE-2009 NQF LEVEL	NQF LEVEL	CREDITS
Undefined	Regular	Level 3	NQF Level 03	6
REGISTRATION STATUS		REGISTRATION START DATE	REGISTRATION END DATE	SAQA DECISION NUMBER
Passed the End Date - Status was "Reregistered"		2018-07-01	2023-06-30	SAQA 06120/18
LAST DATE FOR ENROLMENT		LAST DATE FOR ACHIEVEMENT
2026-06-30		2029-06-30

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.

This unit standard does not replace any other unit standard and is not replaced by any other unit standard.

PURPOSE OF THE UNIT STANDARD

This unit standard is for persons in the Manufacturing Engineering and Technology field.

A person credited with this unit standard will be able to:
Demonstrate an understanding of basic programmable logic controllers.

This unit standard will contribute to the full development of the learner within the Measurement Control and Instrumentation environment by providing recognition, further mobility and transportability within the field of Manufacturing Engineering and Technology. The skills, knowledge and understanding demonstrated within this unit standard are essential for social and economic transformation and upliftment within the Measurement Control and Instrumentation environment.

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING

The following knowledge, skills attitude and/or equivalent:

Safety procedures according to statutory and manufacturer requirements

Induction to industry

Basic computer literacy

Basic understanding of electricity

Basic digital electronics

UNIT STANDARD RANGE

Type of PLC`s used include but is not limited to block PLC`s, modular PLC`s, screw mounted PLC`s, din rail PLC`s.

The range of PLC equipment includes but is not limited to central processing unit, input modules, output modules, power supply, back plane.

Programming languages appropriate to the PLC used include but are not limited to Ladder, STL and SFC.

Safety precautions include the use of personal protective equipment, electrical and fire protection, process isolation.

Statutory requirements include but are not limited to SABS, OSH Act and manufacturers specifications.

Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1

Demonstrate an understanding of the input/output peripherals.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The correct peripheral is identified (input/output, discrete, digital, analogue, intelligent).

ASSESSMENT CRITERION 2

2. The manuals/specifications and drawings are selected according to the peripheral.

ASSESSMENT CRITERION 3

3. Hazards associated with the use of are recognised and necessary precautions taken according to work site procedures.

ASSESSMENT CRITERION 4

4. The correct operation of the peripheral device must be demonstrated.

ASSESSMENT CRITERION 5

5. The peripherals are correctly removed and replaced according to manufactures specifications.

SPECIFIC OUTCOME 2

Demonstrate an understanding of field devices interfaced to programmable logic controllers.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The correct field device is identified (pushbuttons, limits, level, pressure devices).

ASSESSMENT CRITERION 2

2. The operation of the field device is verified.

ASSESSMENT CRITERION 3

3. The field device is correctly connected to the appropriate peripheral.

ASSESSMENT CRITERION 4

4. Personal safety equipment is selected according to activity requirement.

SPECIFIC OUTCOME 3

Demonstrate an understanding of the processor in a programmable logic controller.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The functions of the indicator lights of the processor are explained.

ASSESSMENT CRITERION 2

2. The battery of the processor is correctly identified, removed & replaced according to manufactures specifications.

ASSESSMENT CRITERION 3

3. Faults are correctly diagnosed by utilising the indicator lights.

ASSESSMENT CRITERION 4

4. The processor mode switch is correctly identified and utilized according to the task instruction.

ASSESSMENT CRITERION 5

5. Communication status indicators are correctly identified and the status correctly explained.

SPECIFIC OUTCOME 4

Demonstrate an understanding of the back plane and power supply of a programmable logic controller.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Placement of the programmable logic peripherals and processor on the back plane are correct according to the address structure of the back plane.

ASSESSMENT CRITERION 2

2. Correct addressing modes are selected on the back plane for the peripheral modules selected.

ASSESSMENT CRITERION 3

3. Correct insertion of the power supply is carried out according to manufactures specifications.

ASSESSMENT CRITERION 4

4. Correct connections for redundant power supply have been made.

SPECIFIC OUTCOME 5

Demonstrate an understanding of the programming terminal.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Handheld or programming terminal must be correctly connected to the processor.

ASSESSMENT CRITERION 2

2. Communication between the programmer and the processor must be established.

ASSESSMENT CRITERION 3

3. The correct sequence must be used to monitor on-line the programme that resides in the processor.

ASSESSMENT CRITERION 4

4. Instruction mnemonics are explained with reference to the field devices.

UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS

1. Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.

2. Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.

3. Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures.

UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE

Workshop procedures including house keeping practices according to statutory requirements.

Specific work site safety practices relating to the use of power tools including the use of personal protective equipment, electrical and fire protection.

Names, locations and functions of pressure equipment and their accessories.

Hazards and preventive precautions associated with pressure equipment.

Company quality standards.

UNIT STANDARD DEVELOPMENTAL OUTCOME

N/A

UNIT STANDARD LINKAGES

N/A

Critical Cross-field Outcomes (CCFO):

UNIT STANDARD CCFO IDENTIFYING

Identification and problem solving skills - faulty equipment identified and reported.

UNIT STANDARD CCFO WORKING

Work effectively with others - working under supervision.

UNIT STANDARD CCFO COMMUNICATING

Communication skills - reporting faulty pressure equipment and interpreting job requirements.

UNIT STANDARD ASSESSOR CRITERIA

N/A

REREGISTRATION HISTORY

As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015.

QUALIFICATIONS UTILISING THIS UNIT STANDARD:

	ID	QUALIFICATION TITLE	PRE-2009 NQF LEVEL	NQF LEVEL	STATUS	END DATE	PRIMARY OR DELEGATED QA FUNCTIONARY
Core	58288	National Certificate: Electro-Mechanics	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2023-06-30	As per Learning Programmes recorded against this Qual
Core	74532	National Certificate: Measurement, Control and Instrumentation	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2023-06-30	As per Learning Programmes recorded against this Qual
Core	48696	National Certificate: Measurement, Control and Instrumentation	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2009-04-08	Was EWSETA until Last Date for Achievement
Core	72052	Further Education and Training Certificate: Electrical Engineering	Level 4	NQF Level 04	Passed the End Date - Status was "Reregistered"	2023-06-30	As per Learning Programmes recorded against this Qual
Core	58270	Further Education and Training Certificate: Electro-Mechanics	Level 4	NQF Level 04	Passed the End Date - Status was "Reregistered"	2023-06-30	As per Learning Programmes recorded against this Qual
Core	48474	National Certificate: Electrical Engineering	Level 4	Level TBA: Pre-2009 was L4	Passed the End Date - Status was "Reregistered"	2009-02-18	Was EWSETA until Last Date for Achievement
Elective	57877	National Certificate: CNC Production Machining	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2023-06-30	MERSETA
Elective	58862	National Certificate: Electro-Mechanical Winding	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2023-06-30	MERSETA
Elective	58882	National Certificate: Fluid Power	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2023-06-30	MERSETA
Elective	50371	Further Education and Training Certificate: Domestic Appliance Repair	Level 4	NQF Level 04	Passed the End Date - Status was "Reregistered"	2023-06-30	EWSETA

PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD:

This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.

1.	ESKOM GENERATION - PALMIET PUMP STORAGE GRABOUW
2.	KP ACADEMY (PTY) LTD
3.	POWER SYSTEMS TRAINING, CAPE TOWN