Keyence DL-PD1 Manual de usuario Pagina 45
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3-5 Overview of PROFIBUS DP Communication
3-23
- PROFIBUS DP Compatible Network Unit DL-PD1 User's Manual (IG) -
Executing Communication
3
Communication Methods
The following describes how the master cyclically communicates with the DL-PD1
(cyclic communication).
• "Reading an output from a sensor amplifier" (page 3-23)
• "Entering an external input to a sensor amplifier" (page 3-24)
• "Reading comparator values (P.V. values) from sensor amplifiers" (page 3-25)
Reading an output from a sensor amplifier
Available outputs: High, Low, Go
This example shows how to read the High output from Slot 1 (ID01).
In the monitor mode
(1) The output from the sensor amplifier entered into Bit 0 of the input octet 2 via cyclic
communication. (In the big endian format)
This example shows how to read the High output from the sensor amplifier ID01.
In the I/O mode
(1) The output from the sensor amplifier entered into Bit 1 of the input octet 1 via cyclic
communication. (In the big endian format)
Output
High output of ID01
Sensor amplifier
Master
Slot 1
Bit 0 of the input octet 2
1
0
ON
OFF
(1)
Master
DL-PD1 (Slot 0)
Bit 1 of the input octet 1
Sensor amplifier
Output
High output of ID01
1
0
ON
OFF
(1)
- DL-PD1 (IG) 1
- Introduction 2
- Safety Precautions 3
- Precautions for Installation 4
- Relevant Manuals 5
- Terms Used in This Document 6
- Chapter 1 Before Using 7
- Chapter 4 Appendix 8
- Characteristics of the DL-PD1 10
- Checking the Package Contents 12
- 1-3 Names of Each Part 13
- 1-3 Names of Each Part 14
- Before Using 14
- Connection and Configuration 15
- Reference 16
- Sensor amplifier connector 17
- (for DIN rail mounting type) 18
- Expansion 18
- Setting the Station Address 19
- 2-2 Wiring 20
- 2-3 Technical data 21
- General Specifications 22
- Executing Communication 23
- Overview 24
- PROFIBUS Specifications 25
- 1 Read the GSD file 26
- 3 Add the sensor amplifier 26
- Expansion unit 27
- Sensor amplifier 27
- Hardware configuration 28
- Input/Output size 29
- 3-3 Parameterization 30
- Vender parameter 31
- 3-4 Diagnostic Function 32
- Station status 33
- PROFIBUS DP master address 34
- Manufacturer ID 34
- Identifier-related diagnosis 35
- Module status 35
- 3-4 Diagnostic Function 36
- Channel-related diagnosis 37
- Cyclic communication 39
- Device maps 40
- I/O mode 44
- Communication Methods 45
- In the monitor mode 46
- In the I/O mode 46
- 3-6 DP-V1 Service 48
- 3-6 DP-V1 Service 49
- IG series index (Slot 1 to 4) 52
- Bit 0: NPN output 60
- Bit 3, 2, 1: 1 to 5 V 60
- 3-7 Other functions 62
- FREEZE/SYNC/CLEAR command 63
- 3-7 Other functions 64
- Appendix 65
- Troubleshooting 66
- Types of error and error code 67
- Data update time 69
- Revision History 72
- December 72
- Official release 72
- WARRANTIES AND DISCLAIMERS 73
- E 1101-3 73
- 242GB 1122-1 242GB 74
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