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Omron NT21 User Manual
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4-4
Section
Memory Link Online T
ransfer Function
400
The PT’s screen data can be changed at the scheduled times each day to dis-
play the regular operating screen or maintenance screen.
6 PM Screen Change
b)
Start regular
operation with
memory link.
a)
T
ransfer regular
operating screen data.
PT
Host
b)
Start operation
with maintenance
screen data.
a)
T
ransfer maintenance
screen data.
PT
Host
8 AM Screen Change
MENU
SET
MON.
T
ank A
T
ank B
T
ank C
T
ank D
Bulb A
Bulb B
Bulb C
MAINTENANCE
2. Automatically Switch
PT Screen Data at
Certain Times
414
416
Table of Contents
Table of Contents
6
Default Chapter
8
About this Manual
8
Related Manuals
9
Application Considerations
11
Precautions
14
1 Intended Audience
15
2 General Precautions
15
3 Safety Precautions
15
Section 1 General
17
General
17
Role and Operation of the PT
18
Role and Operation of the PT
19
Operations of the PT
19
Functions of the NT21, NT31/NT31C and NT631/NT631C
20
Features
20
Comparison between NT21, NT31, NT31C, NT631, and NT631C
23
Comparisons with Earlier Models
23
Principal Functions of NT21, NT31/NT31C, and NT631/NT631C
30
Displays
32
System Configuration
38
Peripheral Devices that Can be Connected
38
Connecting to the Host
40
Communications with the Host
42
Direct Connection Function
42
Host Link
43
NT Link
43
Functions of the Allocated Bits and Words
44
Clock Data Area (PC to PT) (NT21 Only)
50
Connecting to Other Companies' Pcs
50
Communication by Using Memory Links
51
Memory Link
51
Comparison between Direct Connection and Memory Link
51
Memory Link Online Transfer Function
52
Before Operating
53
Section 2 Pt Functions
55
PT Functions
55
SECTION 2 PT Functions
55
PT Screens
57
Screen Composition
57
Screen Numbers
57
Screen Types
57
Screen Attributes
61
Display Colors
63
Display Elements
65
Areas for Control/Notification
68
PT Status Control Area
69
PT Status Notify Area (PT to Host)
77
Window Control Area
81
Clock Data Area (Host to PT, NT21 Only)
85
Memory Tables
88
Numeral Memory Table
88
Character String Memory Table
95
Bit Memory Table
99
Fixed Displays
106
Fixed Displays
107
Text (Fixed Display)
114
Tiling
117
Marks
119
Image and Library Data
122
Image Data Display
122
Library Data Display
125
Lamps
128
Touch Switches
135
Numeral Display
156
Character String Display
164
Graphs
170
Bar Graphs
170
Analog Meter
174
Broken Line Graphs
180
Trend Graphs
186
Alarm List, Alarm History
198
Inputting Numeric Values
208
Numeric Key Type (Numeral Input)
208
Thumbwheel Type (Thumbwheel)
216
Inputting Character Strings
226
Recipes
232
Function Outline
232
Operation Outline
237
Limits
242
Common Attributes
243
Display Functions
251
Input Functions
251
Output Functions
251
Relationship with Other Elements
252
Window Function
253
What Are Windows
253
Window Type
254
Window Screens and Display Elements
255
Opening/Closing and Moving a Window
255
Size and Display Position of a Window
257
Changing the Displaying Order of Windows
257
Checking the Display Status of a Window
258
Temporary Input Fields
258
Focus Window
259
Special Functions
260
Display History Record Function
260
Alarm History Record Function
262
Resume Function
265
Screen Saver Function
265
Buzzer Function
266
Clock Function
267
Print Function (NT31/NT31C or NT631/NT631C Only)
269
Adjusting Contrast and Brightness During PT Operation
271
Programming Console Function
273
Device Monitor Function
275
Compatible Systems
275
Device Monitor Screens and Functions
276
Starting and Exiting Device Monitor
276
Operations Common to the Device Monitor Screens
278
Using the Registration Monitor Screen
279
Using the Continuous Monitor Screen
286
Using the Error Log Screen
290
Errors Occurring During Device Monitor Operation
292
Mathematical Function
294
Executable Calculations
294
Data Flow in Calculations
297
Precautions When Using the Mathematical Function
298
PT Configuration Settings
300
Section 3
302
How to Use the PT
302
Screen Creation Procedure
302
Screen Creation Procedure
303
Screen Creation Procedure
304
Buzzer, Backlight, and Display Control
305
Sounding the Buzzer
305
Stopping the Buzzer Sound
306
Controlling the Backlight
308
Turning off the Screen
310
Redisplaying the Turned-Off Screen
312
Screen Display and Notification
314
Switching the Screen
314
Screen Display and Notification
315
Finding the Screen Number of the Presently Displayed Screen
319
Display and Control of Windows
322
Opening/Closing/Moving a Window
322
Display and Control of Windows
323
Checking the Display Status of a Window
327
Disabling/Enabling the Opening of a Window
329
Changing Numeral and Character String Display
330
Changing Numeric Values and Character Strings
330
Changing Numeral and Character String Display
331
Display of Graphs
341
Changing the Trend Graph Display
341
Input of Numeric Values and Character Strings
342
Inputting a Numeric Value
342
Inputting Character Strings
356
Using the Alarm List/History Function
361
Using the Alarm List/History Function
362
Using the Display History Function
366
How to Use the Display History
366
Using the Display History Function
367
Display and Setting of Calendar Clock
369
Display and Setting of Calendar Clock
370
Setting the Date and Time (NT31/NT31C and NT631/NT631C)
370
Displaying the Date and Time
374
Printing Data and Checking the Printer Status
377
Checking the Printer Operating State
377
Printing Data and Checking the Printer Status
378
Printing the Screen
378
Enabling/Disabling PT Operations
381
Enabling and Disabling the Operation of the PT
381
Section 4 Using Memory Link
384
Operation of the Memory Link
385
Memory Link Commands
385
PT Memory
385
Using Memory Link
385
Outline of Communications
387
Communication Protocol
387
Outline of Communications
388
Notes on Using Commands
388
Commands/Responses
390
PT Memory Read Command (Sent from Host to PT)
390
Numeral Memory Table Read Command (Sent from Host to PT)
391
Character String Memory Table Read Command (Sent from Host to PT)
392
Bit Memory Table Read Command (Sent from Host to PT)
393
Screen Data Comment Read Command (Sent from Host to PT)
395
System Status Read Command (Sent from Host to PT)
395
PT Memory Write Command (Sent from Host to PT)
396
Numeral Memory Table Write Command (Sent from Host to PT)
397
Character String Memory Table Write Command (Sent from Host to PT)
398
Bit Memory Table Write Command (Sent from Host to PT)
399
PT Memory Batch Write (FILL) Command (Sent from Host to PT)
401
Numeral Memory Table Clear Command (Sent from Host to PT)
401
Character String Memory Table Clear Command (Sent from Host to PT)
402
Bit Memory Table Clear Command (Sent from Host to PT)
403
Touch Switch Input Notify Command (Sent from PT to Host)
404
Numerical Input Notify Command (Sent from PT to Host)
405
Character String Input Notify Command (Sent from PT to Host)
406
Direct Area Changing Notify Command (Sent from PT to Host)
407
PT Memory Changing Notify Command (Sent from PT to Host)
409
PT Operation Mode Switching Command (Sent from Host to PT)
410
Re-Send Request Command (Sent from Host to PT)
411
Error Response (Sent from PT to Host)
411
Memory Link Online Transfer Function
413
Online Transfer Processes
413
Memory Link Online Transfer Function
414
Required Conditions
414
Example Applications
414
Function Applications
416
Examples of Actual Applications of Direct Access
416
SECTION 5 Function Applications
416
5-1 Examples of Actual Applications of Direct Access
417
Examples of Actual Applications of Direct Access
417
Changing Display Contents in Accordance with PC Bit Status
418
Examples of Actual Applications of Direct Access
418
Continually Monitoring a Specific PC Bit and Displaying a Message on a Window When It Comes on
420
Displaying Online Help with a Touch Switch
420
Continuously Reading out the Contents of a PC Word and Displaying a Trend Graph by Backtracking
422
Displaying the Day of the Week Using the Clock Data in the PT
423
Enabling and Disabling a Touch Switch with an Interlock Bit
424
Scaling the Contents of a PC Word and Displaying the Result
425
Examples of Actual Applications of Memory Link
426
Section 6 Troubleshooting and Maintenance
429
Troubleshooting and Maintenance
429
Troubleshooting
430
Troubleshooting
432
Responding to Displayed Error Messages
435
Errors Occurring at Start of Operation and Their Remedies
435
Responding to Displayed Error Messages
437
Errors Occurring During Operation and Their Remedies
437
Errors Occurring on Screen Data Initialization and Transmission
438
Errors in the System Installer Mode and Their Remedies
439
Communication Errors and Their Remedies
440
A Specifications
442
Display Capacity
442
Display Element Specifications
443
Display Restrictions
444
Special Features
446
B Compatibility with Screen Data of Other PT Models
448
C NT20S and NT30/620 Compatible Modes
464
Compatible Mode
469
D PC Memory Maps
471
E Keycode Tables
474
Index
476
Revision History
480
Other manuals for Omron NT21
Setup Manual
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Omron NT21 Specifications
General
Brand
Omron
Model
NT21
Category
Touch terminals
Language
English
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