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V350-35-R34 Installation Guide

8

Unitronics 

Communication Port 

 

Turn off power before making communications connections. 

Caution

 

Signals are related to the controller’s 0V; the same 0V is used by the power supply. 
Always use the appropriate port adapters. 
The serial port is not isolated. If the controller is used with a non-isolated external 
device, avoid potential voltage that exceeds ± 10V. 

Port 1 is type RJ-11 and may be set to either RS232 or RS485 via jumper as shown below.  
By factory default, the port is set to RS232, termination ON. 

Use RS232 to download programs from a PC, and to communicate with serial devices 
and applications, such as SCADA.   
Use RS485 to create a multi-drop network containing up to 32 devices. 

Pinouts

The pinouts below show the PLC port signals. 
To connect a PC to a port that is set to RS485, remove the RS485 connector, and connect the PC to 
the PLC via the programming cable. Note that this is possible only if flow control signals are not used 
(which is the standard case). 

RS232  

RS485** 

Controller 

Port 

Pin # 

Description 

 

Pin # 

Description 

1* DTR 

signal 

 

1  A 

signal 

(+) 

2

0V reference 

 

(RS232 signal) 

3

TXD signal 

 

(RS232 signal) 

4

RXD signal 

 

(RS232 signal) 

5

0V reference 

 

(RS232 signal) 

6* DSR 

signal 

 

6  B 

signal 

(-) 

 

Pin #1

*Standard programming cables do not provide connection points for pins 1 and 6. 
**When a port is adapted to RS485, Pin 1 (DTR) is used for signal A,  
  and Pin 6 (DSR) signal is used for signal B. 

RS232 to RS485 Jumper Settings

The figure to the right shows the jumper 
factory default settings, RS232, RS485 
termination ON. 
Note that in order: 

To change the communication 
setting to RS485, both 
communication standard jumpers 
must be moved 
To change the RS485 
termination, both termination 
jumpers must be moved 

To access the jumpers, you must open the 
controller according to the instructions 
beginning on page 9. 
 

Содержание Vision OPLC V350-35-R34

Страница 1: ...nd temperature measurement I Os via On board I O configuration Model dependent I O Expansion Modules Local or remote I Os may be added via expansion port or CANbus Information Mode This mode enables you to View Edit operand values COM port settings RTC and screen contrast brightness settings Calibrate the touchscreen Stop initialize and reset the PLC To enter Information Mode press the i button fo...

Страница 2: ...g this product the user must read and understand this document All examples and diagrams are intended to aid understanding and do not guarantee operation Unitronics accepts no responsibility for actual use of this product based on these examples Please dispose of this product according to local and national standards and regulations Only qualified service personnel should open this device or carry...

Страница 3: ...oller into the cut out ensuring that the rubber seal is in place 3 Push the 2 mounting brackets into their slots on the sides of the controller as shown in the figure to the right 4 Tighten the bracket screws against the panel Hold the bracket securely against the unit while tightening the screw 5 When properly mounted the controller is squarely situated in the panel cut out as shown in the figure...

Страница 4: ... kgf cm Do not use tin solder or any substance on stripped wire that might cause the wire strand to break Install at maximum distance from high voltage cables and power equipment Wiring Procedure Use crimp terminals for wiring use 26 12 AWG wire 0 13 mm 2 3 31 mm2 1 Strip the wire to a length of 7 0 5mm 0 250 0 300 inches 2 Unscrew the terminal to its widest position before inserting a wire 3 Inse...

Страница 5: ...t of a shaft encoder or as normal digital inputs If inputs 0 2 and 4 are set as high speed counters without reset inputs 1 3 and 5 can function as normal digital inputs Input Jumper Settings The tables below show how to set a specific jumper to change input functionality To access the I O jumpers you must open the controller according to the instructions beginning on page 9 Incompatible jumper set...

Страница 6: ...ics npn Input Wiring Input wiring npn sink HSC input wiring npn sink pnp Input Wiring Input wiring pnp source HSC input wiring pnp source Shaft encoder Analog Input Wiring Analog Input Wiring Current 2 Wire Analog Input Wiring Current 3 Wire ...

Страница 7: ...al is connected to the chassis Install an external circuit breaker Guard against short circuiting in external wiring Double check all wiring before turning on the power supply Do not connect either the Neutral or Line signal of the 110 220VAC to device s 0V pin In the event of voltage fluctuations or non conformity to voltage power supply specifications connect the device to a regulated power supp...

Страница 8: ...RS485 remove the RS485 connector and connect the PC to the PLC via the programming cable Note that this is possible only if flow control signals are not used which is the standard case RS232 RS485 Controller Port Pin Description Pin Description 1 DTR signal 1 A signal 2 0V reference 2 RS232 signal 3 TXD signal 3 RS232 signal 4 RXD signal 4 RS232 signal 5 0V reference 5 RS232 signal 6 DSR signal 6 ...

Страница 9: ...enabling you to change I O settings according to the jumpers shown on page 5 Changing Communication Settings 1 To access the communication jumpers hold the I O PCB board by its top and bottom connectors and steadily pull the board off 2 Locate the jumpers and then change the settings as required Jumper settings are shown on page 8 Closing the Controller 1 Gently replace the board Make certain that...

Страница 10: ...not limited to any implied warranties of merchantability fitness for a particular purpose or non infringement Unitronics assumes no responsibility for errors or omissions in the information presented in this document In no event shall Unitronics be liable for any special incidental indirect or consequential damages of any kind or any damages whatsoever arising out of or in connection with the use ...

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