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5-1
IM 04L31A01-17E
5
Ladder Communication Protocol
5.1 Ladder Communication Protocol
Specifications
The ladder communication protocol can be used over the serial interface (RS-232 or RS-
422/485).
The ladder communication specifications of the CX are as follows.
Specifications Description
Transmission media RS-232 or RS-422/485
Control RS-232: None only
(Flow control is not available) RS-422/485: None only
Baud rate 1200, 2400, 4800, 9600, 19200, and 38400
Start bit Fixed to 1 bit
Stop bit Fixed to 1 bit
Parity Select Odd, Even, or None (no parity).
Communication address 1 to 32
Chapter 5 Ladder Communication Protocol
- DAQSTATION CX1000/CX2000 1
- Communication Interface 1
- 6th Edition : June 2010 (YK) 2
- Trademarks 3
- Revisions 3
- Safety Precautions 4
- Exemption from Responsibility 5
- How to Use This Manual 6
- Using the Operation Keys 8
- Rear Panel 9
- The parameter box containing 10
- The setup item boxes that 11
- Contents 12
- Chapter 3 Serial Interface 13
- Chapter 4 Modbus Protocol 13
- Chapter 6 Command 14
- Chapter 7 Response 15
- Chapter 8 Status Reports 16
- Appendix 17
- E-mail Transmission 19
- Web Server 20
- FTP Client 21
- FTP Server 22
- Setting/Measurement Server 23
- Maintenance/Test Server 23
- Instrument Information Server 23
- DAQSTANDARD for CX 24
- Other Functions 25
- Green Series Communications 26
- Load Data 27
- Modbus master 27
- Modbus slave device 27
- Serial communications 27
- Modbus Slave 28
- Communication with PCs 30
- Basic Specifications 31
- user’s manual IM 35
- (Rear panel) 39
- Indicator 39
- IM04L31A01-03E 41
- IM04L31A01-01E 42
- 2.6 FTP Test 46
- Ethernet Communications 47
- Log Screens 52
- CX1000 Web setting display 58
- Refresh the data 62
- Select the log 63
- 2-34 IM 04L31A01-17E 64
- Web Browser Operation 64
- Contents of the Operator Page 64
- CX2000 screen example 64
- 2.12 E-mail Transmission Test 77
- Switch Communication Buffer 80
- RS-232 Specifications 81
- RS-422/485 Specifications 81
- Connection Procedure 82
- Handshaking 83
- Interface 85
- (for a four-wire system) 88
- Memory out) setting display 91
- Communication input 100
- 04L31A01-03E 101
- 04L31A01-01E 102
- IM 04L31A01-03E 102
- Operation Keys” on page ix 103
- Master Function 105
- IM 04L31A01-17E 106
- Command Message Construction 107
- Broadcast Request 108
- Function Code 108
- Message Format for Errors 110
- Response Error Codes 110
- Specifications 111
- RS-485 communications 112
- CX CX CX 112
- Address NO 112
- 5.3 Communications with PLCs 115
- Response 116
- Response When Errors Occur 117
- 5-8 IM 04L31A01-17E 118
- (F3RZ81-0N, F3RZ91-0N) 118
- 5-10 IM 04L31A01-17E 120
- Ladder Communication Protocol 121
- 5-14 IM 04L31A01-17E 124
- Program Example 124
- 5-16 IM 04L31A01-17E 126
- 5-18 IM 04L31A01-17E 128
- 6.1 Command Syntax 130
- 6.2 A List of Commands 133
- 6-6 IM 04L31A01-17E 135
- Control Commands 139
- Output Commands (Measurement) 139
- Output Commands (Control) 140
- 6-12 IM 04L31A01-17E 141
- 6.3 Input Range Parameter 142
- Control Input Range 144
- CR Set the control range 144
- MP Control setting range 145
- 6-18 IM 04L31A01-17E 147
- Control Group Setting 148
- GG Sets the control group 148
- HD Sets the derivative time 148
- Query PW[ p1]? 150
- 6-22 IM 04L31A01-17E 151
- 6-24 IM 04L31A01-17E 153
- When set to DIO-11 153
- When set to DIO-12 or DIO-12P 153
- 6-26 IM 04L31A01-17E 155
- 6.5 Setting Commands 156
- (Measurement) 156
- 6-28 IM 04L31A01-17E 157
- SD Sets the date and time 159
- SZ Sets the zone 159
- SY Sets the 4 screen display 162
- (CX2000 only) 162
- SU Sets the USER key 162
- 6.6 Setting Commands 165
- (Operation) 165
- 6-38 IM 04L31A01-17E 167
- 6.7 Basic Setting Commands 169
- XR Sets the remote action 171
- XQ Sets the timer 171
- RO Sets the report type and 171
- RM Sets the report channel 172
- 6-44 IM 04L31A01-17E 173
- 6-48 IM 04L31A01-17E 177
- 6.8 Basic Setting Commands 178
- (Control) 178
- MK Burnout settings 179
- HR Sets the RJC 179
- MJ Sets the RJC 179
- GT Registers contact inputs 179
- 6-52 IM 04L31A01-17E 181
- 6.9 Control Commands 183
- FF Outputs FIFO data 185
- MO Outputs TLOG data, manual 187
- 6.12 Output Commands 188
- (Measurement-RS-422/485 188
- Dedicated Commands) 188
- 6.13 Output Commands 188
- 6-60 IM 04L31A01-17E 189
- FV Outputs the status of the 190
- 6-62 IM 04L31A01-17E 191
- 7.1 Response Syntax 193
- ASCII Output 194
- BINARY Output 194
- 7.1 Response Syntax 195
- Identifier 195
- (1) (2) (3) (4) 196
- SP Number and PID Number 202
- Control Mode Output 203
- Program Operatin Mode Output 204
- 101112131415 206
- Communication Log 207
- Web Operation Log 211
- E-mail Log 212
- Alarm Summary 213
- Message Summary 214
- Status Information 214
- File List 215
- Data List 216
- User Level 217
- Output Example 231
- Communication Function 234
- 9.3 Setting the Modbus Master 238
- CX1000 Basic setting display 243
- (when Comm. is set to On) 243
- Controller address 255
- Detail codeStatus lamp 255
- Communication condition 255
- 9.8 Starting the Operation 257
- Display Data Example 261
- App-4 IM 04L31A01-17E 263
- Overview of the FIFO Buffer 265
- App-8 IM 04L31A01-17E 267
- • Hold Registers 268
- Parameters Related to Loop 1 270
- App-12 IM 04L31A01-17E 271
- App-14 IM 04L31A01-17E 273
- Parameters Related to Loop 2 273
- Parameters Related to Loop 3 274
- App-16 IM 04L31A01-17E 275
- Parameters Related to Loop 4 275
- Parameters Related to Loop 5 276
- App-18 IM 04L31A01-17E 277
- Parameters Related to Loop 6 277
- • Program Control Parameters 279
- App-22 IM 04L31A01-17E 281
- App-24 IM 04L31A01-17E 283
- • Input Registers 284
- High byte Low byte 285
- App-28 IM 04L31A01-17E 287
- App-30 IM 04L31A01-17E 289
- App-34 IM 04L31A01-17E 293
- App-36 IM 04L31A01-17E 295
- App-38 IM 04L31A01-17E 297
- App-42 IM 04L31A01-17E 301
- App-44 IM 04L31A01-17E 303
- • Read-only Parameters 304
- App-46 IM 04L31A01-17E 305
- App-48 IM 04L31A01-17E 307
- IM 04L31A01-01E 308
- Operation Errors 309
- Appendix 7 Messages 310
- App-52 IM 04L31A01-17E 311
- • Other Communication Errors 314
- • Status Messages 314
- Appendix 8 Login Procedure 315
- Index-2 IM 04L31A01-17E 318
- Index-4 IM 04L31A01-17E 320
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