Advantech B+B SmartWorx 485DRCI-PH User manual

Recommended Accessories
Power Supply
Model# MDR-20-24
DIN RAIL ADAPTER
Model# DRAD35
Document Number – 710-10773-00_r2_485DRCI-PH_2118qsg
1 [phone] | Europe: [phone]
advantech-bb.com
707 Dayton Road | PO Box 1040 | Ottawa, IL 61350
Phone: [phone] | Fax: [phone]
www.advantech-bb.com | E-mail: [e-mail]
Before you begin, be
sure you have the following:
Model 485DRCI-PH
3-Way Isolated RS-232 to
RS-422/485 Converter
Fast and easy on the web: www.advantech-bb.com
+ 485DRCI-PH Converter
+ 10 to 48VDC Power Supply
QUICK START
GUIDE
Connecting a Signal Ground
(common, reference) on the RS-422/485 side.
The specications for most RS-422 and RS-485
devices indicate that the device can withstand a
maximum VCM of -7 Volts to +12Volts. The function of
the GND connection is to tie the signal grounds of all
nodes on a network to one common ground potential.
This ensures that the common mode voltage cannot
exceed the specied value.
A signal ground is required on Model 485DRCI-PH
because it is an optically isolated device. If you do not
have a signal ground (common, reference) on your
RS-422/485 device, you can connect to the DC power
ground of your RS422/485 device.
Caution: Make sure that this is connected correctly.
Note: Do Not use the shield drain wire as the signal
ground between RS-422/485 devices.
SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS
A, B, C AND D HAZARDOUS LOCATIONS, OR
NONHAZARDOUS LOCATIONS ONLY.
CONVENANT À L’EMPLOI DANS LES SITES DANGEREUX
DE CLASSE I, DIVISION 2, GROUPES A, B, C ET D, OU
DANS LES SITES NON HASARDEUX SEULEMENT.
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF
ANY COMPONENT MAY IMPAIR SUITABILITY FOR CLASS
I, DIVISION 2.
ATTENTION - DANGER D’EXPLOSION - LA
SUBSTITUTION DE COMPOSANTS PEUT ENTRAÎNER
UNE ADÉQUATION À LA CLASSE I, DIVISION 2.
WARNING - EXPLOSION HAZARD - DO NOT
DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS
LIVE OR UNLESS THE AREA IS KNOW TO BE FREE OF
IGNITABLE CONCENTRATIONS.
ATTENTION - DANGER D’EXPLOSION - LA SUBSTITUTION DE
COMPOSANTS PEUT ENTRAÎNER UNE ADÉQUATION À LA
CLASSE I, DIVISION 2.
Field wiring connections must be made using 105 °C minimum
copper supply wires.
Les connexions de câblage sur site doivent être réalisées en
utilisant des câbles d’alimentation en cuivre de 105 °C minimum.
To be installed in accordance with control drawing 8512r001.
Pour être installé conformément au dessin de contrôle 8512r001.
UL Class 1/Div. 2 Information
7
Troubleshooting
6

+
For an explanation of RS-485 termination and biasing requirements,
refer to B+B SmartWorx’ RS-422/485 Application Note. This publica-
tion can be downloaded at: www.advantech-bb.com
Switch position 8 is not used.
Set the DIP Switches
2
COMMUNICATIONS MODE
Switch 1 2 3 4
RS-485 2-Wire Half-Duplex ON ON ON ON
RS-485 4-Wire Full-Duplex ON OFF OFF OFF
RS-422 Full-Duplex OFF OFF OFF OFF
BUILT-IN TERMINATION RESISTOR SWITCH
5
Use Built-in 120Ω Termination ON
Use External or No Termination OFF
Data
LEDs
Power
LED
DB9
Port
Data
LEDs
Terminal
Block
DIP
Switches
10 to 48 VDC
1.9 W max.
Grounding the unit is recommended.
Connect a grounding wire from the ground lug
to a good source of Earth Ground.
Ground
Lug
BUILT-IN TRANSMIT BIAS RESISTOR SWITCH
6
Use External or No Bias Resistor ON
Use Built-in 1.2KΩ Transmit Bias Resistor OFF
BUILT-IN RECEIVE BIAS RESISTOR SWITCH
7
Use External or No Bias Resistor ON
Use Built-in 1.2KΩ Receive Bias Resistor OFF
DB9 Pinouts
TERMINAL RS-485 2-WIRE RS-422/485 4-WIRE
A*** TDA (-)
B*** TDB (+)
CData A (-) RDA (-)
DData B (+) RDB (+)
EGND GND
DIP SWITCH RS-422/485 4-WIRE
1 234567
ON/OFF OFF OFF OFF *** *** ***
Position 1 = ON for RS-485, OFF for RS-422.
Positions 5, 6, 7 are used for termination and biasing.
DIP SWITCH RS-485 2-WIRE
1 2 3 4 5 6 7
ON ON ON ON x x x
Positions 5, 6, 7 are used for termination and biasing.
• Congure for RS-485 Four-Wire.
• Jumper terminals A to C and B to D.
• Connect a PC to the RS-232 port (see Step 3).
• Using HyperTerminal or a similar program, con-
nect to the appropriate COM port.
• Turn off HyperTerminal local Echo.
• Transmit data. The same data should be re-
turned. When data is sent and looped back, the
TD and RD LEDs will blink on both ports.
LEDs
Power
LED Red = ON when power is applied.
Data LEDs Green = LEDs ash when data is present on the port.
+
+
Wire the Converter
3
Loopback Test
4
Check LEDs
5
+
Product Overview
1