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Common Slave Specifications Section 3-1
3-1 Common Slave Specifications
3-1-1 Communications Specifications
Item Specification
Communications protocol DeviceNet
Supported connections (commu-
nications)
Master-Slave: Remote I/O and explicit messages
Both conform to DeviceNet specifications
Connection forms Combination of multi-drop and T-branch connec-
tions (for trunk or drop lines)
Baud rate 500 kbps, 250 kbps, or 125 kbps (switchable)
Communications media Special 5-wire cables (2 signal lines, 2 power
lines, 1 shield line)
Communications
distances
500 kbps Network length: 100 m max. (100 m max.)
Drop line length: 6 m max.
Total drop line length: 39 m max.
250 kbps Network length: 250 m max. (100 m max.)
Drop line length: 6 m max.
Total drop line length: 78 m max.
125 kbps Network length: 500 m max. (100 m max.)
Drop line length: 6 m max.
Total drop line length: 156 m max.
Parentheses indicate the length when Thin Cables are used.
Communications power supply 11 to 25 V DC
Max. number of nodes 64 nodes (including Configurator when used)
Max. number of Masters
Without Configurator: 1
With Configurator: 63
Max. number of Slaves 63 Slaves
Communications cycle time Without Configurator:
Input Slaves (16-pt): 16
Output Slaves (16-pt):16
Cycle time at 500 kbps: 9.3 ms
With Configurator: Set between 2 and 500 ms
Calculated value takes priority if longer.
Max. communications cycle time
with multiple Masters
Input Slaves (16-pt): 16
Output Slaves (16-pt):16
Max. cycle time at 500 kbps: 18 ms
Error control checks CRC error check
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