Jetter JC-120MC, User Manual

Page: 55 / 634

Jetter AG 55
JC-120MC Mechanical and electrical installation
Line length and baud rate of the JX2 system bus
The maximum cable length depends on the baud rate used and the number of
expansion modules connected to the bus.
Baud rate Cable length Stub length Total stub length
1,000 kBaud 25 m max. 0.3 m max. 3 m
500 kBaud 100 m max. 1.0 m max. 39 m
250 kBaud 200 m max. 3.0 m max. 78 m
125 kBaud 200 m max. - -
When engineering the line length, follow the rules listed below:
 Each non-intelligent JX2-I/O module connected to the system bus reduces
the maximum line length by 1.0 m

Each connected intelligent JX2-I/O slave module reduces the maximum
line length by 1.0 m
 Each JetMove reduces the maximum line length by 1.0 m

Each connected IP67-I/O module reduces the maximum line length by
1.0 m
The baud rate setting depends on the number of modules connected to the
JX2 system bus:
JX2-I/O modules
JX2 slave modules
JetMove
JX-SIO
CANopen®
modules
1,000
kBaud
500
kBaud
250
kBaud
125
kBaud
x x x x x
x x x x x
x x x x
Cable lengths
Rules for calculating the
stub length
Baud rate