Unitronics V130-33-TR6, Руководство по установке

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Vision™PLC+HMI Installation Guide
10 Unitronics
Caution

Always use the appropriate port adapters.
Caution
 Signals are related to the controller’s 0V; the same 0V is used by the power supply.

The serial port is not isolated. If the controller is used with a non-isolated external device,
avoid potential voltage that exceeds ± 10V.

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.
RS232 RS485** Controller Port
Pin # Description Pin # Description
Pin #1
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 B signal (-)
* 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.
Note that it is possible to establish a PC to PLC connection using RS232 even when the PLC is set to
RS485 (this eliminates the need to open the controller to set jumpers).
To do so, remove the RS485 connector (pins 1 & 6) from the PLC and connect a standard RS232
programming cable.
Note that this is possible only if DTR and DSR signals of RS232 are not used (which is the standard
case).
Setting RS232/RS485 Communication Parameters, V430J
This port may be set to either RS232 or RS485 via DIP switches:
The table shows the DIP switches factory default settings. Use the table to adapt the settings.
Switch Settings
Setting RS232/RS485 Communication Parameters, V130/V350/V130J/V350J
This port may be set to either RS232 or RS485 via jumper.
The accompanying figure shows the jumper factory
default settings.
These jumpers may be used to:

Set communications to RS485, by setting both COMM
jumpers to ‘485’.

Set RS485 termination, by setting both TERM jumpers
to ‘OFF’.
To access the jumpers, you must open the controller
according to the instructions on page 11.