2
CS1W-DRM21-V1
Communications Specifications
*1.
Terminators are required at both ends of trunk line.
*2.
Indicates the maximum network length when thick cables are used. Reduce the network length to 100 m max. when using thin cables.
Network Specifications
Item
Specifications
Communications protocol
DeviceNet
Connection methods
Multi-drop and T-branch connections can be combined (for trunk and branch lines)
*
1
Baud rate
500 Kbps, 250 Kbps, or 125 Kbps
Communications media
Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line)
Special 4-wire flat cables (2 signal lines, 2 power lines)
Communications distances for
special 5-wire cables
Baud rate
Network length
Branch line length
Total branch line length
500 kbps
100 m max.
6 m max.
39 m max.
250 kbps
250 m max.
*
2
6 m max.
78 m max.
125 kbps
500 m max.
*
2
6 m max.
156 m max.
Communications distances for
special 4-wire flat cables
Baud rate
Network length
Branch line length
Total branch line length
500 kbps
75 m max.
6 m max.
35 m max.
250 kbps
150 m max.
6 m max.
48 m max.
125 kbps
265 m max.
6 m max.
135 m max.
Communications
power supply
24 V DC supplied externally
Max. number of nodes
64 nodes (including Masters, Slaves, and Configurator)
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Terminating
resistance
Terminating
resistance
Tap
Tap
Tap
Tap
24
V
DC po
w
er s
u
pply
for net
w
ork
Tap
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ice
Tap
Tr
u
nk Line Length (100 m: 500,000
b
ps; 250 m: 250,000
b
ps; or 500 m: 125,000
b
ps)
M
u
ltidrop
Star Connections
T-Branch
Branching to
Branch Lines
(Branch line length: 6 m max.)
