
Chapter 1 DN611B Introduction
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Figure 1-6 Distance between two nodes in a network using drop lines
1.3.3
Terminating resistor
In DeviceNet, terminating resistors must be installed at both ends of the trunk line to reduce signal reflection
and stabilize communication. The specifications of the terminating resistor are as follows.
· 121 Ω
· 1% metal coating
· 1 / 4 W
Currently, products that meet the specifications of the terminating resistor are commercially available, so
please purchase them. See "C.1 Network components".
Note
- Do not use a network configuration that extends only cables that have no nodes connected to both the trunk
・
and drop lines.
- Do not attach a terminating resistor to the node. It may cause a communication error.
- Do not attach a terminating resistor to the end of a drop line. Install only at both ends of the trunk line.
Termination
Termination
Node 3
Distance between two nodes ≤ maximum cable length
Node 0
Node n
Содержание DeviceNet nv Series
Страница 1: ...Unified Controller nv Series type1 light DeviceNetTM Module DN611B Instruction Manual 6F8C1686 ...
Страница 30: ...Chapter 1 DN611B Introduction 6F8C1686 14 ...
Страница 92: ...Chapter 4 Settings 6F8C1686 76 3 Register the slave node Figure 4 16 Register the slave node Drag and Drop ...
Страница 149: ...13 3 133 B Appendix B Outside Dimension ...
Страница 150: ...Appendix B Outside Dimension 6F8C1686 134 Figure B 1 External dimension 135 mm 35mm 130 mm 111 5mm 105mm ...
Страница 151: ...13 5 135 C Appendix C Related products C 1 Network components 136 C 2 DeviceNet setting tool 138 ...
Страница 159: ...1686 2 2201 ...