RS-422A Communication Board Setting

The following describes how to set an RS-422A communication board.

Setting Procedure

Do the following steps for the board setting.

1. Set a DIP switch.
2. Install a board in a robot controller.
3. Set necessary options with a teach pendant.

Setting a DIP Switch

Set the DIP switch of a channel to use as the following shows.

• Set the data transmission mode to RTS/CTS-looped full duplex.
• Enable the terminator.

Setting for COM-1PD(LPCI)H (1ch type)

Position of a DIP Switch

Switch Setting

Function	Switch setting
・Full duplex ・Loopback RTS and CTS	Do not use with bits 1 and 2 both set ON as this may result in damage to the board.
Terminator inserted

Setting for COM-2PD(PCI)H (2ch type) or COM-4PD(PCI)H (4ch type)

Both channels are available. Use a desired channel.

Position of a DIP switch

Switches for 2ch type

Terminator setting switch	Data transmission mode setting switch	Channel
SW2	SW3	CH1(CN1)
SW4	SW5	CH2(CN2)

Switches for 4ch type

Terminator setting switch	Data transmission mode setting switch	Channel
SW2	SW3	CH1
SW4	SW5	CH2
SW6	SW7	CH3
SW8	SW9	CH4

Switch Setting

Select a DIP switch of a channel to connect a force sensor.

Installing a Board

Install a recommended expansion board in the PCI slot.

For information of how to install, refer to "Installing Expansion Board" of RC8 SERIES ROBOT CONTROLLER MANUAL.

Setting Necessary Options with a Teach Pendant

Set the following two options with a teach pendant.

• Enable a FIFO buffer.
• Select RS-422A as connection mode, and specify a port.

Enabling a FIFO Buffer

Operation path: [F6 Setting] - [F5 Comunication and Token] - [F2 Network and Permission]

From the Device list, select a port of RS-422A that connects to the force sensor.

From the Setting panel, from the Property column, select [FIFO buffer]. Press [Edit] button.

[FIFO buffer] window appears, select [Use]. Press [OK] button.

Once the setting finishes, on the "Communication Settings" window, press [OK] button.

Selecting RS-422A as Connection Mode

This setting is done when a force sensor's setting.

For details, refer to "RS422A Communication Setting" of "Sensor Setting".