EX500 Serial System | EX## - OME0008 |
6. How to operate EX500 - GPR1 ( PROFIBUS-DP )
6 -1. Communication wiring
A twisted pair cable with shield is used in the communication wiring of PROFIBUS- DP.
A maximum length of cable depend on communication speed.
The specification of cable length is based on TYPE A cable which has parameters shown below.
・Cable specification
Impedance | 135 ohms to 165 ohms |
Capacitance between | 30 pF / m or less |
conductors |
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Conductor resistance | 110 ohms / km |
Cable diameter | 0.64 mm |
Conductor area | 0.34 mm2 or more |
・Communication speed and Longest wiring length
Communication | 9.6 | 19.2 | 93.75 | 187.5 | 500 | 1.5 | 12 |
speed | [k bit/sec] | [k bit/sec] | [k bit/sec] | [k bit/sec] | [k bit/sec] | [M bit/sec] | [M bit/sec] |
Wiring |
| 1200 |
| 1000 | 400 | 200 | 100 |
length |
| [m] |
| [m] | [m] | [m] | [m] |
・Terminating resistance
It is necessary to attach terminating resistance to the units located at the ends of transmission line.
Refer to section 6
Data Line
Data Line
VP
390ohms
220ohms
390ohms
6 -2. Parts description
Fieldbus connector
(PROFIBUS-DP)
Power supply connector
2 |
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4V | DC |
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Communication port A
Communication port B
Communication port C
Communication port D
a.Fieldbus connector
b.Power supply connector
c.Communication port
d.LED display window
e.Station switch protection cover
！CAUTION
DGND
LED display window
Station switch protection cover
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:Port for PLC connection.
:The power source for Input Unit, SI Unit, and control and for the solenoid valve is connected through this port.
:Input Unit Manifold or the Manifold Valve with
the SI Unit is connected through this port.
:The state of the power source supply and the PLC communication is displayed. ( Refer to section 6
:Switches for the operation setting are inside.
( Refer to section 6
The station switch protection cover should be tightened with specified tightening torque after it is opened. ( Tightening torque : 0.6 N・m )
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