Campbell-scientific SC100 1-Channel Serial Data Interface Manual de usuario descargar pdf (Pagina 5)

SC100 ISOLATED RS-232 BAUD RATE CONVERTER INTERFACE

Parameters Port Function

Configuration

number

3 6 8 DTR CTS TX RX

1. DTR, RX 1 0 NZ C NC NC C+1

2. DTR,TX 1 NZ 0 C NC C+1 NC

4. DTR, TX, RX 1 NZ NZ C NC C+1 C+2

NOTE: Configuration numbers 2 & 4 have transmit (Tx) on the same control port (c+1). This is

useful if you plan to initialize the SC100 and receive data without having to change the control port

functions.

Choosing value for bit3 (half/full):

1) If the half duplex version and configuration

number 2 or/and 4 are used, then bit3 must

be 1.

2) If the full duplex version and configuration

number 2 or /and 4 are used, then bit3 must

be 0.

3) If configuration number 1 is used, then bit3

must be 0 for either half or full duplex.

Bit2 (parity/none) when this bit is set to one,

then either even or odd parity (depending on bit

4) will be enabled for the computer/sensor side.

Pig tail to DB 9 pin cable

Red supply volts (jumper configurable to

either +12 V or +5 V)

Black Gnd

Blue DTR input

Orange TXD input

Brown RXD output

Green FLAG output (SC100's output that

indicates buffered information ready)

Yellow Power Down wire (+5 V will power

down the SC100 if internal jumper is

connected, connect to gnd if not

used). There are three different

power modes.

1) Yellow wire tied low (gnd) normal

operation mode ~55ma.

2) Yellow wire high (+5 V), Red wire

+12 V, power down mode ~ 2ma

3) Yellow wire high (+5 V), Red wire

+5 V power down mode >50

Micro Amps

Examples of connecting Pig tail cable to

datalogger

Instruction 15 input/output configurations

Number 4 (refer to "15 control port serial"

manual, table 1) DTR, TX, RX with first control

port parameter 4 = 1

Red +12 V or +5 V (check jumpers in the

SC100)

Black Gnd

Blue C1

Orange C2

Brown C3

Green C4

Yellow GND

Instruction 15 input/output configurations

Number 1 DTR, RX with first control port

parameter 4 = 1

Red +12 V or +5 V

Black Gnd

Blue C1

Orange no connect

Brown C2

Green C3

Yellow GND

1 2 3 4 5 6 7 8 9 10

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Campbell-scientific SC100 1-Channel Serial Data Interface Manual de usuario Pagina 5

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