2
Role and Operation of the NT631/NT631C Section 1-1
1-1 Role and Operation of the NT631/NT631C
The NT631/NT631C 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 NT631/NT631C for those using a programmable terminal
(PT) for the first time.
1-1-1 Operation of an NT631/NT631C at an FA Production Site
Production Line Status
Monitoring
The NT631/NT631C displays real-time information about the system and
equipment operating status, etc. Its power of expression is enhanced by
graphs and other visuals, making the displays easy to understand.
Directions to Workers on
the Shop Floor
The NT631/NT631C warns of system or equipment failures and prompts the
appropriate remedial action.
Panel Switch Functions Setting touch switches on the NT631/NT631C allows workers to use the
NT631/NT631C as an operating panel; the results of the operations are trans-
mitted to the host.
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
Electroplating control
Transport
Clamp
Unclamp
Int. stop
Adv.
Rev.
Wash
Wash.
head
Corr. prv.
head
Electr.
head
Electro-
lyte
Corr.
prv.fluid