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1-1SectionRole and Operation of the NT31/NT31C
2
1-1 Role and Operation of the NT31/NT31C
The NT31/NT31C is a sophisticated display unit (programmable terminal) which
automatically displays information and can also be used for operations when
necessary. The following gives a general description of the role and operation of
the NT31/NT31C for those using a programmable terminal (PT) for the first time.
1-1-1 Operation of an NT31/NT31C at an FA Production Site
The NT31/NT31C displays real-time information about the system and equip-
ment operating status, etc. Its power of expression is enhanced by graphs and
other visuals, making the displays easy to understand.
Production Control (3)
Product
% achieved
Today’s target 560 441
Current production 305 275
Number defective 2 8
Number repaired 7 15
The NT31/NT31C warns of system or equipment failures and prompts the ap-
propriate remedial action.
Alarm
Assembly line B
Positioning pin
is defective. Line stopped.
Check the following.
1. Defective pin L3
2. Position of dog M2
3. Mounting of photosensor P5
Setting touch switches on the NT31/NT31C allows workers to use the
NT31/NT31C as an operating panel; the results of the operations are trans-
mitted to the host.
Electroplating control
Transport
Electr.
head
Wash.
head
Corr. prv.
head
Clamp
Unclamp
Int. stop
Adv.
Rev.
Electro-
lyte
Wash
Corr.
prv.fluid
Production Line Status
Monitoring
Directions to Workers on
the Shop Floor
Panel Switch Functions