(3)Notes
When adding a communication station, follow the items below.
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1 | Branch from the trunk cable. | Another branch line from a branch line may not give |
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appropriate communication by reflection wave. |
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2 | Don’t use the same station number | The use of the same station number twice may cause |
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twice. | communication errors. |
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3 | Check the termination resistance | When the newly added station becomes a termination of |
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switch. | the circuit, change the setting of the LT switch. |
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4 | Provide extra length for the | Have enough cable length in order to provide easy wiring. |
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expansion cable. |
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5 | Do not exceed the 1 km limit for total | Longer wiring may cause communication error by signal |
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length of the cable. | attenuation. |
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6 | Change the layout drawing for | Maintain the added work data for future maintenance use. |
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installation. |
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| Do not overlap with any PC’s | When the communication area or the flag area of the |
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7 | added station overlaps with other addresses in use, |
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communication area. |
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| communication errors may occur. |
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| Set the parameter memory of the | Without setting the parameter memory of the master |
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8 | master station and that of the newly | station and that of the slave station, the added station |
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| added station. | cannot communicate. |
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