INSTALLATION | 2 |
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RS485 Half-Duplex Interface
The RS485
It can be used for Multidrop connections with a Datalogic Multiplexer, (see par. 2.6.3 and 2.6.4) exploiting a proprietary protocol based on polled mode called MUX32 protocol, where a master device polls slave devices to collect data.
The connector pinout follows:
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| RTX485+ | RS485 transmit/receive data + | ||||||||||||
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| RTX485- | RS485 transmit/receive data - | ||||||||||||
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| SGND | signal ground |
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| DS1500 |
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| MULTIPLEXER |
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| 6 | RTX485 + |
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| RTX485 + | ||||||
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| 2 | RTX485 - |
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| 4 | SGND |
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| RS485REF | ||||||
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| 13 |
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| SHIELD | |||
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| Earth Ground | |
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| Figure 9 - RS485 |
This interface is forced by software when the protocol selected is MUX32 protocol.
In a Multiplexer layout or for slaves, the Multidrop address must also be set via the serial channel by the WinHost utility or by ESC sequences.
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