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6 Programless Communications
6 - 4
E5C-T Digital Controllers Programmable Type Communications Manual (H186)
Programless communications are performed in the following order of communications unit numbers.
0 (master) → 1 → 2 → ... → Highest communications unit number → 0 → 1...
The master (the Controller with communications unit number 0) starts programless communications
approximately five seconds after the power supply to it is turned ON. (Communications are not per-
formed until the power supply to the master is turned ON.) When the master starts communications, the
slaves (the Controllers with a communications unit number other than 0) also start communications.
After communications have started, they will continue for the remaining E5@C-T Controllers even if one
or more of them (including the master) stop. However, the communications cycle will increase while
waiting for communications from the stopped E5@C-T Controllers.
z Turning ON Power
Turn ON the power supply to the E5@C-T Controllers either after the PLC or at the same time as the
PLC. The following may occur if the power supply is turned ON to the PLC after programless
communications have started.
• The PLC may detect a communications error.
• The Response Flag may change to eeee once at startup.
z Turning OFF Power to Mitsubishi PLCs
To turn OFF the power supply while communications with the PLC are active, change the E5@C-T
Controller to the initial setting level first, and then turn OFF the power supply. If you turn OFF the
power supply to an E5@C-T Controller during programless communications, the PLC may detect a
communications error.
z Restarting only the E5@C-T Controllers
Use the following procedure to restart the E5@C-T Controllers.
1
Change all of the E5@C-T Controllers to the initial setting level.
2
Cycle the power supply in order to the slaves (the Controllers with a communications
unit number other than 0) and then to the master (the Controller with a communications
unit number of 0), or change the slaves and then the master back to the operation level.
Note: If the above procedure is not followed and the PLC detects an error, clear the error from the program in the
PLC.
6-1-3 Operation for Programless Communications
6-1-4 Timing of Turning Power ON and OFF
- Programmable Type 1
- Preface 3
- © OMRON, 2014 3
- Warranties 4
- Limitation on Liability; Etc 4
- Safety Precautions 6
- CAUTION 7
- Precautions for Safe Use 9
- Precautions for Safe Use 10
- Trademarks 11
- Versions 12
- Revision History 13
- Revision History 14
- Sections in This Manual 15
- CONTENTS 16
- Section A Appendices 18
- Communications Methods 19
- 1-1-1 Introduction 20
- 1-1-3 Transmission Procedure 21
- 1-1-4 Interface 21
- 1-1-5 Wiring 21
- 1 Communications Methods 22
- CompoWay/F Communications 25
- Procedures 25
- 2-1 Data Format 26
- 2-1-2 BCC Calculation Example 27
- 2-1-3 Response Frame 27
- 2-1-4 Communications Data 28
- 2-1-5 End Code Example 28
- 2-1 Data Format 29
- 2-1-5 End Code Example 29
- 2-2 Structure of Command Text 30
- 2-2-4 Addresses 31
- 2-2-5 Number of Elements 31
- Variable 32
- 2-3-2 Write Variable Area 33
- Response 36
- -5CCT AEX3R 38
- 2-3-7 Echoback Test 39
- (2) Response Code 40
- • Normal Completion 40
- • Error Occurred 40
- 2-3-8 Operation Command 41
- 2-3-8 Operation Command 43
- 2-4 Response Code List 46
- Communications Data for 47
- CompoWay/F 47
- 3-2 Status and Status 2 77
- 3-2 Status and Status 2 79
- Modbus Communications 81
- Procedure 81
- 4-1 Data Format 82
- 4-1 Data Format 83
- 4-1-1 Command Frame 83
- 4-1-2 Response Frame 84
- 4-1-3 Error Codes 85
- 4-2 Function List 86
- 4-3 Variable Area 87
- 4-4-1 Variable Read, Multiple 88
- Response Frame 89
- Response Code 89
- H'10 90
- Command Frame 92
- 4-4-4 Echoback Test 94
- PID set is fixed at PID1 98
- 5-2 Status 115
- Programless Communications 117
- 6-1-1 Introduction 119
- 6-1-2 Features 119
- 6-1-5 Connectable PLCs 121
- 6-2 E5@C-T Controller Setup 122
- 6-2-3 Send Data Wait Time 123
- Communications Setting Level 125
- 6-2-6 Receive Data Wait Time 126
- 6-2 E5@C-T Controller Setup 129
- Troubleshooting 133
- 6-2-10 Communications Writing 134
- 6-3 Controlling Programless 136
- Communications 136
- 6-3-2 Response Flag 137
- 6-3-4 Operation Command Codes 138
- 6-3-6 Write Mode 138
- 6-3-7 Troubleshooting 139
- CX-Programmer and USB driver 140
- 6-4-3 PLC Setup 141
- 6-4-3 PLC Setup 143
- 6-4-4 E5@C-T Controller Setup 144
- SCU21-V1 145
- 6-4-5 Checking Operation 146
- 6-4-5 Checking Operation 147
- Changing E5CC-T Settings 148
- Connecting to the PLC 152
- 6-5-3 PLC Setup 152
- 6-5-3 PLC Setup 153
- 6-5-4 E5@C-T Controller Setup 155
- 6-5-5 Checking Operation 155
- USB port 156
- USB connector 156
- Commercially 156
- QJ71C24N-R4 157
- (4) Click the OK Button 158
- (5) Click the Execute Button 158
- 6-6-3 PLC Setup 159
- 6-6-4 E5@C-T Controller Setup 162
- 6-6-5 Checking Operation 163
- 6-6-5 Checking Operation 165
- Component Communications 169
- 7-1 Component Communications 170
- 7-1-2 Wiring 171
- Initial Setting Level 172
- Operation Level 172
- Adjustment Level 172
- 7 Component Communications 173
- 7-2 Operation for Component 174
- 7-3 Troubleshooting 175
- Appendices 177
- A-1 ASCII List 178
- A-2 Troubleshooting 179
- A Appendices 180
- Contact: www.ia.omron.com 186
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