Advantech BB-SCP211-DFTB3 User manual

www.advantech.com
707 Dayton Road | PO Box 1040 | Ottawa, IL 61350
Phone:[phone] | Fax: [phone]
www.advantech.com | E-mail: [e-mail]
Fast and easy on the web: www.advantech.com
QUICK START
GUIDE
Document Number: 20BB710-10864-00_r1_BB-SCPx11x-DFTB3_1120qsg
Recommended Accessories
10-30V DC, 2.5W
Power Supply
# BB-MDR-40-24
Before you begin, be
sure you have the following:
RS-232 to RS-422/485
Industrial Converters
Models BB-SCP211-DFTB3 or BB-SCP311T-DFTB3
+ BB-SCPx11x-DFTB3 Converter
+ Quick Start Guide (included)
+ 10-30V DC, 2.5W Power Supply
(not included)
Wiring Examples: RS-422 4-Wire
& RS-485 4-Wire
6
1. In this example, the converter is set up to use internal
bias and no termination.
RS-422 4-Wire DIP SwitchRS-485 4-Wire DIP Switch
2. If Termination is necessary on the receive lines, a built in
120Ω resistor can be switched in using DIP Switch Position
6. In most cases, termination is not required. The default
setting is OFF (termination “out”.)
a. Termination is used to match impedance of a node to the
impedance of the transmission line being used. Termination
increases load on drivers, increases installation complexity,
changes biasing requirements and makes system
modication more difcult. Generally, termination should
only be used for long distances. “If in doubt, leave it out.”
Loop-back Test/Troubleshooting
8
Congure for RS-485 4-wire.
Jumper terminals B to D and C to E.
Connect a PC to the RS-232 port.
TD and RD LEDs are ON when power is applied.
Using HyperTerminal or similar program, connect to the
appropriate COM port. Turn off HyperTerminal Local Echo.
Transmit data. The same data should be returned. When
data is sent and looped back, the TD and RD LEDs blink
On and Off indicating data ow.
Bias & Termination
7
1. The circuit can be biased using the built in 1 kΩ pull-up
and pull-down resistors. This is controlled with DIP Switch
Position 5. The default setting is ON (bias resistors “in.”)
a. When an RS-485 network is in an idle state, all nodes are
in listen (Receive) mode. Under this condition, there are
no active drivers on the network. All drivers are tri-stated.
Without anything driving the network, the state of the line
is unknown. If the voltage level at the receiver’s A and B
inputs is less than ±200mV, the logic level at the output of
the receivers will be the value of the last bit received. In
order to maintain the proper idle voltage state, bias resistors
must be applied to force the data lines to the idle condition.
12V DC, 6W, Int’l AC Input,
Stripped/Tinned
Power Supply
# BB-SMI6-12-V-ST

Product Overview
Specications & Compliances
Control & Indicators
Pinouts & Terminal Identication
1
2
3
BB-SCP211-DFTB3 - Non-isolated, standard temperature
BB-SCP311T-DFTB3 - 2kV isolation, wide temperature
UL Installation Information:
• One Conductor Per Terminal
• Use Copper Wire Only
• Wire Size: 28 to 16 AWG
• Tightening Torque: 5 KG-CM
• Wire Temperature Rating: 105 °C minimum
(sized for 60 °C Ampacity)
• Surrounding Ambient Air Temperature: +80 °C max.
Product Features
APower Terminal Block 2-position, removable
BDB9 Female RS-232 (wired DCE)
CData LEDs Green - ON when power is applied.
Blinking to indicate data ow.
DMounting Ears
Use for panel mounting. (Use #
BB-DRAD35 adapter clip for DIN rail
mounting.)
BRS-422/485 TB 5-position, removable
8-Position DIP Switch - located on back
(Note: shown in default conguration.)
DB9 Female Connector DCE (DB9 Female)
PIN SIGNAL DIRECTION
1DCD –
2RD Output
3TD Input
4DTR –
5GND –
6DSR –
7RTS –
8CTS –
9RI –
RS-422/485 4-Wire
AGround
BRDB(+)
CRDA(-)
DTDB(+)
ETDA(-)
RS-422/485 2-Wire
AGround
BData B(+)
CData A(-)
D–
E–
Power Connection
4
1. Connect your external power supply to the 2-position
power terminal block (A). Polarity is indicated on the
front label. The converter will accept 10 to 30 V DC,
2.5W maximum.
2. The terminal block will accept 28 to 12 AWG wire.
Wiring Example: RS-485 2-Wire
5
RS-485 2-Wire DIP Switch
1. In this example, the converter is set up to use internal
bias and no termination.
(NOTE: this is the default factory/shipping conguration.)