4. WIRING
IMR01Y35-E3
11
PROFIBUS cables
Use the PROFIBUS cable which fitted the following requirement.
•
Use the shielded twisted pair wire
•
Based on IEC61158, Standard (Recommend cable type A)
Cable type A specification
Impedance:
135 to 165
Ω
Capacitance:
< 30 pF/m
Loop resistance:
110
Ω
/km
Core diameter:
0.64 mm
Core cross section: > 0.34 mm
2
Maximum cable length by communication speed (For cable type A)
Communication speed (kbps)
9.6 19.2 93.75
187.5
500 1500
12000
Cable length (m)
1200
1200
1200
1000
400 200 100
•
Connect the termination resistor to the end of a bus (Refer to below)
Termination resistor
Signal
VP
390
Ω
220
Ω
390
Ω
RxD/TxD-P
RxD/TxD-N
DGND
Customer must provide the PROFIBUS cable (a connection cable of PLC and COM-JG).
As for the PROFIBUS cable, there is a case prepared by a PLC manufacturer.
The details except the above are connected to a website of PROFIBUS International, and
obtain necessary information.
URL: http://www.profibus.com/