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29
Specifications
Section 2-2
2-2-2
DeviceNet Communications Specifications
Item
Specifications
Communications
protocol
Conforms to DeviceNet.
Connection method
The multidrop and T-branch connections can be combined (for main line and branch lines).
Baud rate
500 kbits/s, 250 kbits/s, 125 kbits/s
Communications
medium
Special cable with 5 lines (2 communications lines, 2 power lines, 1 shield line)
Communications
distance
Baud rate
Maximum network length
Branch length
Total length
500 kbits/s
100 m max. (100 m max.)
6 m max.
39 m max.
250 kbits/s
250 m max. (100 m max.)
6 m max.
78 m max.
125 kbits/s
500 m max. (100 m max.)
6 m max.
156 m max.
The numbers in parentheses are the lengths when Thin Cable is used.
Communications power
supply
11 to 25 VDC
Connected nodes
63 nodes max.
Safety I/O
communications
(Pre-Ver. 1.0 Control-
lers)
Safety Master Function:
• Maximum number of connections: 16
• Maximum data size: 16 bytes input or 16 bytes output (per connector)
• Connection type: Single-Cast, Multi-Cast
Safety Slave Function:
• Maximum number of connections: 4
• Maximum data size: 16 bytes input or 16 bytes output (per connector)
• Connection type: Single-Cast, Multi-Cast
Safety I/O
communications
(Controllers with unit
version 1.0 or later)
Safety Master Function:
• Maximum number of connections: 32
• Maximum data size: 16 bytes input or 16 bytes output (per connector)
• Connection type: Single-Cast, Multi-Cast
Safety Slave Function:
• Maximum number of connections: 4
• Maximum data size: 16 bytes input or 16 bytes output (per connector)
• Connection type: Single-Cast, Multi-Cast
Standard I/O
communications
Standard Slave Function
• Maximum number of connections: 2
• Maximum data size: 16 bytes input and/or 16 bytes output (per connector)
• Connection type: Poll, Bit-strobe, COS, Cyclic
Message communica-
tions
Maximum message length: 552 bytes
Summary of Contents for NE1A-SCPU01 - 07-2009
Page 3: ...iv...
Page 9: ...x TABLE OF CONTENTS...
Page 11: ...xii...
Page 15: ...xvi...
Page 70: ...35 Installation Section 3 1 Top Top Bottom Bottom...
Page 72: ...37 Installation Section 3 1 3 1 3 Dimensions and Weight Dimensions NE1A SCPU01 V1...
Page 85: ...50 Wiring Section 3 2...
Page 123: ...88 Explicit Message Communications Section 4 7...
Page 141: ...106 Safety Outputs Section 5 4...
Page 257: ...222 Connection Status Tables Section 10 8...
Page 261: ...226 NE1A series Controller Replacement Section 11 2...
Page 264: ...229 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 266: ...231 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 267: ...232 Appendix A Local Output Setting Example...
Page 269: ...234 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 270: ...235 Appendix A Local Output Setting Example...
Page 273: ...238 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 275: ...240 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 276: ...241 Appendix A Local Output Setting Example...
Page 289: ...254...
Page 293: ...258 Index...