Moxa Technologies Industio CP-114 Series CP-114 Series Manual do Utilizador descarregar pdf (Página 58)

5-6 Industio CP-114 User's Manual

RS-485 Cable Wiring

The RS-485 standard is an enhanced version of the RS-422 balanced line standard. It allows multiple

drivers and receivers in a multidrop systems. As many as 32 drivers and 32 receivers can be put on any

multidrop system.

The Industio CP-114 Series supports only 2-wire half-duplex RS-485 communication.

Data+/- pins are served for both data transmitting and receiving, depending on the RTS signal.

RS-485 pin outs for the Industio CP-114 Series:

CP-114

1 Data-(A)

2 Data+(B)

5 GND

Multidrop RS-485 Half-duplex

CP-114 RS-485 Device 1

Master Slave

2 Data+ Data+

1 Data- Data-

5 GND GND

RS-485 Device N

Slave

Data+

Data-

GND

See the section “RS-485 Programming” of the chapter “Serial Programming Tools” for

more RS-485 programming details.

1 Data-(A)

2 Data+(B)

5 GND

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 69 70

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Moxa Technologies Industio CP-114 Series CP-114 Series Manual do Utilizador Página 58