[3] Notes

When adding a communication station, follow the items below.

 

 

 

 

 

 

 

No.

Item

Reason

 

 

 

1

Branch from the trunk cable.

Another branch line from a branch line may not give

 

 

appropriate communication by reflection wave.

 

 

 

 

 

 

 

 

 

 

 

 

2

Don’t use the same station number

The use of the same station number twice may cause

 

 

twice.

communication errors.

 

 

 

 

 

 

3

Check the termination resistance

When the newly added station becomes a termination of

 

 

switch.

the circuit, change the setting of the LT switch.

 

 

 

 

 

 

 

 

 

 

 

 

4

Provide extra length for the

Have enough cable length in order to provide easy wiring.

 

 

 

expansion cable.

 

 

 

 

 

 

 

 

 

 

 

 

 

5

Do not exceed the 1 km limit for total

Longer wiring may cause communication error by signal

 

 

length of the cable.

attenuation.

 

 

 

 

 

 

 

 

 

 

 

 

6

Change the layout drawing for

Maintain the added work data for future maintenance use.

 

 

 

installation.

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not overlap with any PC’s

When the communication area or the flag area of the

 

 

7

added station overlaps with other addresses in use,

 

 

 

communication area.

 

 

 

communication errors may occur.

 

 

 

 

 

 

 

 

 

 

 

 

 

Set the parameter memory of the

Without setting the parameter memory of the master

 

 

 

8

master station and that of the newly

station and that of the slave station, the added station

 

 

7

 

added station.

cannot communicate.

 

 

 

 

 

 

 

 

 

 

 

 

 

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