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L02SCPU
Mitsubishi Electric L02SCPU - User Manual
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MELSEC-L
CPU Module User's Manual
(Function Explanation, Program Fundamentals)
-L02SCP
U
-L02SCP
U-P
-L02CPU
-L02CPU-P
-L06CPU
-L06CPU-P
-L26CPU
-L26CPU-P
-L26CPU-BT
-L26CPU-PBT
2
Table of Contents
Main Page
Default Chapter
3
Safety Precautions
3
Conditions of Use for the Product
10
Introduction
11
Relevant Manuals
12
Table of Contents
14
Manual Page Organization
19
Terms
20
Part 1 Programming
21
Chapter 1 Basic Procedure for Programming
22
System Configuration Example
23
Creating a Project
24
Creating a Program
25
Prior Knowledge for Creating a Program
25
How to Create a Program
26
Converting a Program
27
Writing a Project to the CPU Module
28
Formatting a Memory
28
Writing to the CPU Module
29
Checking an Operation of the CPU Module
30
Saving a Project
32
Chapter 2 Application of Programming
33
Memory and Files
33
Memory Configuration
33
Parameter-Valid Drive
36
Files
37
I/O Number
43
Concept of I/O Number Assignment
43
I/O Number Assignment
45
Scan Time Structure
47
Initial Processing
47
Refresh Processing of Input/Output Modules or Intelligent Function Modules
48
Program Operation
48
END Processing
49
Operation Processing of the CPU Module for each Operating Status
50
Operation Processing During Momentary Power Failure
52
Processing of Inputs and Outputs
53
Refresh Processing
53
Direct Processing
56
Interrupt Program
58
Executing Multiple Programs
63
Initial Execution Type Program
65
Scan Execution Type Program
67
Standby Type Program
68
Fixed Scan Execution Type Program
71
Changing the Program Execution Type
74
Boot Operation
76
Programming Language
78
Communications with Intelligent Function Modules
79
Part 2 Functions
83
Chapter 3 Cpu Module Functions
84
Function List
84
Constant Scan
87
Watchdog Timer (WDT)
89
Latch Function
90
Initial Device Value
93
Service Processing Setting
96
Output Mode at Operating Status Change (STOP to RUN)
103
Input Response Time Setting
104
Error Time Output Mode Setting
105
PLC Operation Mode at H/W Error Setting
106
Security Function
107
File Password 32
107
Remote Password
112
Remote Operation
114
Remote RUN/STOP
114
Remote PAUSE
116
Remote RESET
118
Remote Latch Clear
119
Scan Time Measurement
120
Program List Monitor
123
Interrupt Program List Monitor
124
Monitor Condition Setting
125
Local Device Monitor/Test
130
External Input/Output Forced On/Off
133
Executional Conditioned Device Test
137
Sampling Trace
145
Realtime Monitor Function
152
Writing Programs in RUN Status
153
Online Change (Ladder Mode)
153
Online Change (Files)
154
Precautions for Online Change
155
Debug from Multiple Programming Tools
160
Simultaneous Monitoring from Multiple Programming Tools
161
Online Change from Multiple Programming Tools
162
Self-Diagnostic Function
163
Error Clear
168
LED Control Function
171
Methods for Turning off the Leds
171
LED Indication Priority
172
Module Error Collection Function
173
Latch Data Backup to Standard ROM
177
Latch Data Backup
178
Restoring Backup Data
181
Writing/Reading Device Data To/From Standard ROM
182
Module Model Name Read
183
CPU Module Change Function with SD Memory Card
184
Backup to SD Memory Card
186
Backup Data Restoration
194
Clock Function
198
Battery Life-Prolonging Function
200
Memory Check Function
201
Program Cache Memory Auto Recovery Function
202
Project Data Batch Save/Load Function
204
Batch Save
205
Batch Load
211
Predefined Protocol Function
217
Communications Via Ethernet
217
Communications Via RS-232 and RS-422/485
218
Serial Communication Function
229
Iq Sensor Solution Function
236
Chapter 4 Display Unit Functions
238
Function List
242
CPU Monitor/Test
243
Device Monitor/Test
243
Device Clear
251
Forced On/Off
253
Scan Time Monitor
256
Built-In I/O Function Monitor
257
Error Display/Clear
261
CPU Settings
265
Clock Setting
265
Module Monitor/Test
267
Buffer Memory Monitor/Test
267
Module Settings
272
Initial Setting Change
272
User Message
275
Memory Card Operation
276
File List/Delete
276
Free Space Display
281
Batch Save
282
Batch Load
283
Options
285
Language Setting
285
Contrast Adjustment
286
Lighting Period Setting
287
Pop-Up Display
288
Part 3 Devices, Constants
289
Chapter 5 Devices
290
Device List
290
Internal User Devices
292
Input (X)
295
Output (Y)
295
Internal Relay (M)
296
Latch Relay (L)
296
Link Relay (B)
296
Annunciator (F)
297
Link Special Relay (SB)
300
Edge Relay (V)
300
Step Relay (S)
301
Timer (T, ST)
301
Counter (C)
310
Data Register (D)
313
Link Register (W)
314
Link Special Register (SW)
315
Internal System Devices
316
Function Devices (FX, FY, FD)
316
Special Relay (SM)
318
Special Register (SD)
318
Link Direct Devices
319
Module Access Devices
322
Intelligent Function Module Device
322
Index Register/Standard Device Register (Z)
324
Index Register (Z)
324
Standard Device Register (Z)
325
Saving and Restoration of the Index Register
326
File Register (R, ZR)
328
Extended Data Register (D) and Extended Link Register (W)
332
Nesting (N)
337
Pointer (P)
338
Local Pointer
339
Common Pointer
340
Interrupt Pointer (I)
341
Other Devices
342
SFC Block Device (BL)
342
I/O No. Specification Device (U)
342
Macro Instruction Argument Device (VD)
343
Chapter 6 Constants
344
Decimal Constant (K)
344
Hexadecimal Constant (H)
344
Real Number (E)
345
Character String (" ")
345
Chapter 7 Convenient Usage of Devices
346
Global Device
346
Local Device
347
Appendices
352
Appendix 1 Parameter Setting
352
Appendix 1
352
List of Parameter Numbers
352
Appendix 1.2 PLC Parameters
355
Appendix 1.3 Network Parameters
376
Appendix 1.4 Remote Password Setting
377
Appendix 2 Added and Changed Functions
378
Appendix 3 CPU Module Processing Time
380
Appendix 3.1 Time Required for each Processing in a Scan Time
380
Appendix
380
Factors that Increase the Scan Time
387
Appendix 3.2
387
Realtime Monitor Function Processing Time
390
Appendix 4 Data Used in the CPU Module
391
Appendix 5 Character Codes Available in the Display Unit
393
Appendix 6 Differences between LCPU and Qnucpu
405
Appendix 6.1 Specifications Comparison
405
Appendix 6.2 Precautions for Utilizing Programs
406
Appendix 7 Precautions for Using GX Works2 and Differences with GX Developer
407
Appendix 8 Device Point Assignment Sheet
408
Index
409
Revisions
412
Warranty
415
Trademarks
416
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Mitsubishi Electric L02SCPU Specifications
General
Brand
Mitsubishi Electric
Model
L02SCPU
Category
Controller
Language
English
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