B&B Electronics Zlinx 485 - Manual (Page 15)

Hardware
Manual Documentation Number: Zlinx485m-1808
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Digital Outputs
Digital outputs send on/off signals (low or high logic levels) to drive external devices
such as indicators, relay coils or the inputs of other equipment such as PLC’s, SCADA,
etc. Modules with digital outputs are available with sourcing or sinking drivers.
Sourcing (PNP transistor) drivers provide up to 240 mA per output at output voltages up
to 30 VDC to connected loads.
Sinking (NPN transistor) drivers can sink up to 40 mA per output at voltages up to 48
VDC.
Analog Inputs
Analog inputs accept voltage, current signals, or RTD temperature signals. When
configured as voltage inputs the full range is 0 to 10 VDC. When configured as current
inputs the full range is 0 to 20 mA and the input resistance is 240 ohms. When
configured as RTD input the allowable sensor types are PT100, PT1000 for CU10.
Analog Outputs
Analog outputs produce voltage or current output signals. When configured as voltage
outputs the full range is 0 to 10 VDC at 1 mA maximum. When configured as current
outputs the full range is 0 to 20 mA with a maximum load resistance of 375 Ω at 20 mA
and 10 VDC supply voltage.
0 to 20 mA AI’s and AO’s accommodate standard 4 to 20 mA instrumentation current loop signals.
I/O Wiring
DI Wiring
DI is programmable to be either NPN or PNP. The following diagram shows typical
connection wiring for various digital inputs: