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172
Overview of Direct Connection Operations
Section 5-1
(4) When NT link (1:N) is set, the PT status control area must be set for each
connected PT.
5-1-4
Switching the Screen Display
The following describes the procedure used to switch the NT20 screen display
by controlling from the PLC.
Note
The display screen can be switched also by pressing a touch switch during
the operation after registering a screen number to the touch switch. For this
function, refer to the
4-7-2 Screen Switching Function
on page 154.
To switch the NT20 screen display by controlling from the PLC, write a screen
number at the “screen switch setting” in the PT status control area.
Screen Switch Setting in the PT Status Control Area
• Available Allocation Words
The PT status control area (PLC to PT) can be allocated to the following
PLC areas.
NT20
PLC
Designated screen
PT status control area
Screen switch setting
PT status control setting
Screen number
Copy memory
table setting
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit
PT status notify bits
Word n
Screen switch setting
Screen number: 0000 (screen clear, no-display)
: 0001 to 0500
Screen number (4-digit BCD)
Symbol
C-series
Alloca-
tion
CVM1/CV -series
Alloca-
tion
CS/CJ-series
Alloca-
tion
None
IR Area
❍
CIO Area
❍
CIO Area
❍
H
HR Area
❍
---
---
HR Area
Not for
Host Link
A
AR Area
❍
AR Area
×
AR Area
❍
L
LR Area
❍
---
---
LR Area (See note 1.)
Not for
Host Link
T
TC Area
Timer PVs
×
TC Area
Timer PVs
×
TC Area
Timer PVs
×
TU
---
---
---
---
TC area,
Timer Completion Flags
×
C
TC Area
Counter PVs
×
TC Area
Counter PVs
×
TC Area
Counter PVs
×
CU
---
---
---
---
TC area,
Counter Completion Flags
×
W
---
---
---
---
WR
Not for
Host Link
TK
---
---
---
---
Task Flags
×
D
DM Area
❍
DM Area
❍
DM Area
❍
Summary of Contents for NT20
Page 1: ...Programmable Terminal Cat No V091 E1 01 NT20 USER S MANUAL ...
Page 2: ...NT series Programmable Terminal User s Manual Produced March 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 15: ...xvi ...
Page 21: ...xxii EC Directives 6 ...
Page 37: ...16 Before Operating Section 1 6 ...
Page 153: ...132 Transferring the Resource Data Section 3 11 ...
Page 185: ...164 Numeral Setting Section 4 8 ...
Page 267: ...246 Key to Programs Section 6 8 ...
Page 281: ...260 Specifications Appendix A ...
Page 285: ...264 Transporting and Storing PTs Appendix C ...
Page 303: ...282 Function Restrictions Depending on the Support Tool Appendix I ...
Page 307: ...286 Index ...
Page 309: ...288 Revision History ...