DCN1-2C Omron, DCN1-2C Datasheet - Page 56

• Manufacturer Part Number: DCN1-2C
• Description: DEVICENET T-TAP 1 DROP
• Manufacturer: Omron

Specifications of DCN1-2C

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DCN12C

A Simple Way to Reduce
Total Branch Line Length
Network Configuration
It can be time-consuming to calculate the total branch line length and fairly dif-
ficult to meet the conditions that individual branch lines do not exceed 6 m
and the total branch line length does not exceed 39 m (with a baud rate of
500 kbps.) A common cause of long branch lines and excessive total branch
line length is using a straight trunk line, as shown in the following diagram.
The branch line lengths can be reduced significantly by redirecting the trunk
line at each node rather than using a straight trunk line. While this configura-
tion reduces branch line lengths, it will increase the maximum network length
(distance between the terminators or the nodes that are farthest apart). Verify
Terminator
Trunk
Branch
• DeviceNet Cable
Line
Thick cable
Thin cable
Flat cable
Thick or thin cable 0.75 to 3 A
PLC Master
Cable type
Branch
line
Branch
line
Branch
line
8 A
3 A
5 A
The current capacity (A) of a branch line is 4.57/L (up
to 3 A) where L is the length (m) of the branch line.
Branch
lines
too long
Maximum current capacity
Trunk line
Network configuration
with a straight trunk line
Branch line
Trunk line
Branch line
T-branch Tap
Branch line
Section 2-2
Terminator
35