17
Communication with the Host
Section 1-3
Features of the NT Link
The NT link has the following features.
S
High-speed communications with specific types of PCs can be executed.
S
Writing in units of bits to the PC memory area is possible.
This enables the other bits of words to which a touch switch has been allocated
to be allocated for other purposes (e.g. a lamp).
However, since data is written to the DM area in word units, the other bits of
words allocated to touch switches in this area cannot be used for other pur-
poses.
S
The NT link can be used even when the PC is in the RUN mode. (When the host
link method is used, the NT31/NT31C switches to the monitor mode when the
PC is in the RUN mode.)
S
In the case of PTs that support the host link (1:N) method (NT20S, NT31,
NT31C, NT600S, NT620S, NT620C, NT625C, NT631, NT631C) up to 8 PTs
can be connected to one port of the PC and used at the same time.
S
When using C200HX/HG/HE-(Z)E, by installing a communication board in the
option slot of the CPU, up to three NT link (1:N) systems (i.e., 24 PTs) can be
connected. For details on the communication board, refer to the SYSMAC
Communication Board User’s Manual (W304-E1-
j
).
S
When using CS1G/H, by installing a communication board in the INNER board
slot of the CPU or installing a serial communication unit in the base unit, multiple
NT link (1:N) systems can be connected. For details on the communication
board/communication unit, refer to the CS1 series Serial Communication Board/
Unit User’s manual (W336--E1--
j
).
S
If the PC used supports the programmable console function, the NT31/NT31C
can be used as a programmable console.
The NT link is compatible with the host link. The NT31/NT31C screen data and PC
programs used with the host link direct connection method can be used with the
NT link method as they are.
Summary of Contents for NT31 Series
Page 1: ...Cat No V043 E1 2 Programmable Terminal NT31 31C OPERATION MANUAL...
Page 2: ...iii NT31 31C Programmable Terminal Operation Manual Produced March 1999...
Page 41: ...30 Before Operating Section 1 5...
Page 75: ...64 Using a Memory Unit NT31 NT31C without V1 Section 3 6...
Page 160: ...149...
Page 174: ...163...
Page 193: ...182...
Page 211: ...200...
Page 235: ...224 c Return to the screen on which screens are specified...
Page 262: ...251...
Page 360: ...349 It is not possible to control a gloval window by touch switch operation...
Page 468: ...457 254 255 0 2 7 1 4 5 3 3 0 0 0 5 9 8 0 3...
Page 476: ...465 Special Functions Section 7 16...
Page 495: ...484 OFF...
Page 610: ...599 Commands Responses Section 9 3...
Page 630: ...619 Examples of Actual Applications of Memory Link Section 10 2...