Yokogawa Touch Screen GP20 User Manual Page 333
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4-13
IM 04L51B01-01EN
Using Modbus Functions (Communicating with Modbus devices)
1
2
3
4
5
App
4.5.2 Modbus Server/Slave Function
Function
The GX/GP supports the following functions.
Function Code Function Operation
1 Read the coil status
(0xxxx)
The client (master) device reads the coil status of the GX/
GP.
2 Read the input relay
status (1xxxx, 1xxxxx)
The client (master) device reads the input relay status of
the GX/GP.
3 Read the hold register
(4XXXX, 4XXXXX)
The client (master) device reads the GX/GP data.
4 Read the input register
(3XXXX, 3XXXXX)
The client (master) device reads the I/O, math, alarm,
time data from the GX/GP.
5 Change the single coil
status
(0xxxx)
The client (master) device changes the single coil status
(off/on) of the GX/GP.
6 Write to a single hold
register (4xxxx, 4xxxxx)
The client (master) device writes to a single hold register
of the GX/GP.
8
1
Loop-back test The master device performs a GX/GP loopback test.
15 Change the coil status
(0xxxx)
The client (master) device changes the coil status (off/on)
of the GX/GP.
16 Write to the hold register
(4XXXX, 4XXXXX)
The client (master) device writes to the GX/GP
communication channels.
1 Loopback test is only for serial communication.
4.5.3 Register Assignments (Shared with the Modbus server/slave function)
Input Register
Type GX/GP Register
Number Data Type
I/O channel I/O data 300001 to 301000 32-bit signed integer
301001 to 302000 32-bit floating point
302001 to 302500 16-bit signed integer
Status information 302501 to 303000 16-bit signed integer
I/O channel
(continuous area)
I/O data 304001 to 304200 32-bit signed integer
304201 to 304400 32-bit floating point
304401 to 304500 16-bit signed integer
Status information 304501 to 304600 16-bit signed integer
Math channel Math data 305001 to 305200 32-bit signed integer
305201 to 305400 32-bit floating point
305401 to 305500 16-bit signed integer
Status information 305501 to 305600 16-bit signed integer
GX/GP status 308001 to 308007 16-bit signed integer
Client/Master device
Read
4.5 Modbus Function and Register Assignments
- Paperless Recorder 1
- User’s Manual 1
- Introduction 3
- Trademarks 4
- Using Open Source Software 4
- Revisions 4
- GX/GP Versions and Functions 5
- How to Use This Manual 6
- Contents 9
- IM 04L51B01-01EN 10
- Appendix 13
- 1. Measurement Source 15
- 3. Displaying Measured Data 17
- 4. Saving Data 18
- 5. Event Action Function 18
- Time (time zone) 20
- 8. Security Function 21
- 9. Communication Function 21
- 10. Miscellaneous 23
- Date/time Settings 24
- (including DI) channels) 25
- Set the input type range 26
- Range Details 26
- Span Lower, Span Upper 27
- Calculation 27
- Reference channel 27
- Low-cut value 28
- Moving average 29
- Burnout set 30
- 1.2.2 Setting Alarms 31
- 1.2.3 Setting the Display 35
- When zone display is not used 36
- When zone display is used 36
- Scale position 37
- Division 40
- Status Display Section 45
- Trend Display (T-Y) 46
- • Alarm Indication 46
- Digital Display 46
- Bar Graph Display 47
- • Bar Graph Updating 47
- Linearizer Approximation 49
- Linearizer Bias 49
- 1.3.1 Setting the Range 50
- 1.3.2 Setting Alarms 51
- 1.3.3 Setting the Display 53
- Position 54
- 1.4.1 Setting the Range 56
- Energize/De-energize 57
- Relay action on ACK 57
- Example: 57
- Alarm output relay 58
- DO Output Relay Operation 59
- 1.4.2 Setting the Display 60
- Value on Overflow 62
- 1.5.2 Setting Expressions 63
- Math range 63
- Rolling average 65
- Handling of Overflow Data 67
- 1.5.3 Writing Expressions 68
- Basic Arithmetic 69
- Power and Other Computations 69
- Relational Computation 69
- Logical Computation 70
- TLOG Computation 71
- CLOG Computation 72
- Special Computations 73
- Conditional Expression 74
- 1.5.4 Setting Alarms 75
- 1.5.5 Setting the Display 76
- Constant 79
- Trend interval [/div] 80
- Trend rate switching 80
- Second interval [/div] 80
- 1.6.2 Setting Display Groups 81
- Group settings 81
- Scale image 82
- Trip line 1 to 4 82
- Message number 83
- Message 1 to 100 83
- Writing Messages 83
- Value indicator 85
- Digit of mark 85
- Backlight saver 87
- Calendar display 88
- A/D integrate, etc.) 89
- Conditions 92
- Recording mode 92
- Display Data, Trend Waveform 92
- Data length 94
- Pre-trigger 95
- Trigger source operation 95
- Display Data and Event Data 96
- Data Types 98
- Internal Memory 99
- Description 100
- Display data, Trend waveform 100
- Event data 100
- Manual sample 100
- Procedure 101
- OFF mode 102
- Save directory 103
- File header 103
- Data file name 103
- Explanation 104
- File name 104
- Media save 105
- File 1 File 2 106
- 107
- Saved the previous time 107
- Save operation 107
- Saved this time 107
- Auto Save Timing 108
- File format 109
- Batch function 110
- 1.10.2 Setting Batch Text 110
- Text field 110
- Title of field 111
- Characters 111
- Using the Batch Function 111
- Creation time 112
- Data type 113
- File type 113
- Report template output 113
- Report channel 114
- Unit of Sum Computation 115
- 1.12.1 Excel Report Files 116
- 1.12.2 PDF Report Files 117
- • Auto Save 118
- Printer Output 118
- 1.13 Setting the Timers 119
- Hour, Minute 120
- Timer match condition 121
- Timer action 121
- Event action 122
- Alarm level 123
- Operation mode 123
- 1.14.2 Event Action Examples 128
- Setting Match Time Timer 1 129
- Configuring the Event Action 129
- Other Settings 129
- On/Off, Span 130
- At Power on 130
- Preset value 131
- Watchdog timer 131
- 1.15.2 Setting Alarms 132
- Alarm delay 133
- 1.15.3 Setting the Display 133
- Bar graph 134
- Color scale band 135
- Alarm point mark 136
- Function 137
- DNS settings 138
- Domain suffix 138
- Host settings 138
- Host name registration 138
- FTP client function 139
- Transfer file 139
- Transfer wait time 139
- FTP connection Primary 140
- FTP connection Secondary 140
- SMTP client function 141
- Authentication 141
- SMTP server 141
- POP3 server 142
- Mail header 142
- E-mail contents 143
- Alarm settings 143
- Report settings 143
- Scheduled settings 143
- System settings 144
- SNTP client function 144
- SNTP server 145
- Query action 145
- Modbus client function 146
- Communication 146
- Recovery action 146
- Connection 146
- Modbus server settings 147
- Command setting 148
- (/C2 and /C3 options) 152
- Command settings 154
- Date format 155
- Change Alarms 156
- Rate of change 156
- Daylight Saving Time 158
- Start time 158
- End time 158
- Internal switch 160
- Status Output 162
- Relay Operation 162
- Settings 163
- USB input device 165
- Security function 166
- Authority of user 170
- 1.20 Loading Settings 171
- Deleting 174
- 1.21.2 Saving a Scale Image 177
- Media kind 179
- Folder name 179
- Volume name 181
- Initializing a Specific Item 183
- Computation 185
- Stopping Recording 186
- Starting Recording 188
- Staring Computation 190
- Stopping Computation 191
- Waveform Updating 195
- The menu screen appears 197
- Display) 199
- Overview 200
- Displaying the Multi Panel 201
- Switching the Multi Panel 201
- Writing a Registered Message 202
- Writing a Free Message 203
- Writing an Added Message 204
- • Writing a Free Message 204
- Display Color of Messages 205
- Added Messages 205
- Writing on the Trend Display 206
- Release top channel display 210
- Reading Measured Values 211
- Display Conditions 214
- Searchable Range 214
- Showing the Standard Display 216
- Alarm Summary) 217
- Displaying the Alarm Summary 217
- Scrolling the Alarm Display 217
- Switching the Display Mode 218
- Saving Alarm Summary 218
- Scrolling the Message Display 219
- Saving Data 221
- • Saving a Specific File 221
- 2.3.4 Displaying Reports 223
- Scrolling Report Channels 224
- 2.3.5 Displaying Logs 225
- Operate log 226
- Error Log 226
- General Log 227
- Mail Log 228
- Modbus Log 229
- SNTP Log 230
- DHCP Log 231
- Displaying the Command Status 232
- Communication Condition 233
- Communication Status 233
- Resuming Command Transmission 233
- Data Dropout 233
- Switch the page 234
- Drag or flick 234
- XX-XX-XX-XX-XX-XX 235
- Display Item 235
- Alarm icon 236
- Add a favorite screen 237
- Favorite screen list 237
- Deleting a Favorite Screen 238
- Operation 240
- Eject external 241
- 2.6.2 Using a Mouse 243
- Starting Mail Transmission 244
- Stopping Mail Transmission 244
- Mail Retransmission 244
- Outputting a Snapshot 246
- Outputting Reports 246
- Obtaining Network Information 246
- Releasing Network Information 247
- 2.9.1 Locking the Operation 250
- Logging In 251
- Logging Out 251
- • Using Touch Operation 251
- • Auto Logout 251
- 2.10.2 Changing the Password 252
- (Web server function) 253
- Functional Overview 254
- PC System Requirements 254
- GX/GP Configuration 254
- Starting the Web Application 255
- Information bar 257
- Closing the Web Application 258
- Status Indications 260
- 3.1.3 Controlling the GX/GP 261
- Starting Computing 263
- Stopping Computing 263
- Resetting Computing 263
- Math ACK 263
- Alarm ACK 263
- Resetting a Relative Timer 264
- Resetting a Match Time Timer 265
- Viewing the Batch text 265
- Changing the Time Using SNTP 265
- Writing Messages 265
- Switching the Monitor Display 266
- Favorite Monitors 268
- Digital Monitor 270
- Bar Graph Monitor 270
- What Is the Active Y-axis? 272
- Channel color 274
- Channel name 274
- Measured value 274
- Displaying Trends’ Past Data 275
- Bar Graph 278
- Overview Monitor 279
- Display Group 280
- Switch the display group 281
- Alarm Summary Monitor 282
- Message Summary Monitor 283
- Error Log Monitor 284
- Network Information Monitor 285
- System Information Monitor 286
- Displaying Snapshot Screens 287
- 3.1.5 Changing Settings 288
- Setup Change Procedure 289
- Editing Settings 290
- Click a color to select it 291
- Select the check box 292
- Operation Example 6 294
- Selecting a Range of Settings 294
- Click the line name 294
- Operation Example 8 296
- Operation Example 11 300
- Saving GX/GP Settings 301
- Printing the Settings 303
- Transmitting E-mail Messages 306
- 3.2.5 E-mail Format 307
- • Subject 311
- • Syntax 311
- Test Mail Transmission Format 312
- (FTP client function) 315
- Files to Transfer via FTP 316
- Shifting the Transfer Time 316
- • Set the query operation 318
- (Modbus server function) 321
- Specifying Register Numbers 322
- (Modbus client function) 323
- 4.2.4 Setting Commands 324
- Examples of Setting Commands 325
- Example 1 325
- Example 2 325
- Example 3 326
- Example 4 326
- Writing Data to a Server 326
- (Modbus master function) 329
- Special value output 331
- Writing I/O Channel Data 332
- Writing Math Channel Data 332
- Input Register 333
- Hold Register 334
- Input Relay 334
- Common Items 335
- I/O Channel Data 335
- • 32-bit Signed Integer 335
- Register 300002 336
- Channel 0001 data 336
- Register 300001 336
- • 32-bit floating point 337
- • 16-bit Signed Integer 338
- Continuous Channel Data Area 340
- GX/GP Status 343
- Communication Channel 352
- Internal Switch 352
- GX/GP Operation Setting 352
- 5.1 Maintenance 355
- DC voltage/current standard 356
- Wiring to the first channel 356
- (Channel ��01) 356
- Using a Password 359
- Adjusting and Checking 360
- Checking 360
- 5.2 Troubleshooting 363
- • Execution Errors 364
- • Operation Errors 364
- • Errors Related to E-mail 365
- • SNTP Errors 367
- • DHCP Errors 367
- • Other Communication Errors 368
- Communication Errors 368
- Status Messages 369
- System Errors 370
- Error Messages 371
- Warning Messages 372
- Information Messages 373
- 5.2.2 Troubleshooting 374
- File Size 377
- Display Data 379
- Event Data 379
- File Output Example 383
- • Display Data 383
- • Event Data 384
- Output Example 388
- • Batch Report 389
- Alarm Summary Format 391
- Template Example 392
- Report Output Example 392
- Keyword Definitions 394
- • System Keywords 394
- • Report Data Keywords 394
- • Special Keywords 394
- • Parameters 395
- Report Template Examples 397
- Power Failure Detection 399
- Basic Operation 399
- Communication Operation 400
- DO Operation 400
- Scale Images 401
- Creating a Scale Image 401
- Appendix 7 Terminology 404
- Specications 405
- X X X X 406
- Clock Functions 408
- Batch Function 408
- Printer Output Function 408
- Other Functions 408
- HARDWARE SPECIFICATIONS 409
- (MAIN UNIT) 409
- Normal Operating Conditions 410
- Other Specications 410
- EXTERNAL DIMENSIONS AND 411
- PANEL CUTOUT DIMENSIONS 411
- SPECIFICATIONS OF OPTIONAL 412
- FUNCTIONS 412
- 24 V DC/AC POWER SUPPLY (/P1) 413
- USB INTERFACE (/UH) 413
- Continued 415
- * Rounding up decimal places 415
- Safety and EMC Standards 416
- Construction 417
- Power Supply 417
- Isolation 417
- Terminal arrangements 417
- A/D Calibration Value 417
- External Dimensions 418
- DIGITAL INPUT MODULE (Model 419
- GX90XD or Options /CRx1) 419
- DIGITAL OUTPUT MODULE (Model 421
- APPLICATION SOFTWARE 422
- MODEL AND SUFFIX CODES 423
- Standard Accessories 424
- GS 04L51B01-01EN 425
- May. 7, 2013-00 425
- Data Saving Functions 427
- GS 04L52B01-01EN 446
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