1. MAIN 222 Industrial Controllers
GE System I/O
MAIN 222
Industrial Controllers
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2. Introduction See Unit 4 Course Manual Info %I is an input
%Q is an output
%M is an internal bit
An internal bit is a contact or location that is memory / virtual in nature
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3. Contacts
A contact is used to monitor the state of a machine or internal reference.
Whether or not the contact passes “flow” depends on status of the reference being monitored and type of contact.
Normally Open = Reference is On 1
Normally Closed = Reference is Off 0
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4. Contacts Types of Coils
Unit 9-5 HO
Retentive
Non-retentive
Power Off then Back On Stays the Same That is Retentive
SET
RESET
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5. Types Of Contacts %Q %M %T Discrete machine outputs Non-Duplicated
Internal Discrete References
Not Retentive
Can be Duplicated %T
Temporary Internal References
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6. Relay Elements
Unit 9-7
Go over 9-8 Example
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7. Addressing Systems Siemens GE TI E = In A = Out I = In Q=Out X = In
Y = Out
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8. Write A logic Program
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9. Writing Programs Basics
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10. Where to Get More Information
See Web Site
VersaPro 2.02/3 users guide
Unit 2,4,9 from Series Course Manual HO
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