IAI America RCB-ISL-SIO User Manual

Sio isolator rcb-isl-sio, Operation manual, First edition

Isolator Link Cable

+24V

Personal Computer

SIO Isolator

Terminal Resistance

Single-phase

(In case of SCON)

Controller

24V Power-

supply

PS1

24V Power-

supply

PS4

24V Power-

supply

PS3

24V Power-

supply

PS2

+24V

(Note)They can not be connected
at the same time.
Either of the two lines
should be connected.

RS232C Cross Cable
(goods on the market.)

RS232C conversion unit
(RCB-CV-MW)

Cable

SIO Converter

Vertical

Horizontal

e-Con

connector

(This terminal can not be used with this

EQPPGEVKQPGZCORNG

Isolator Link Cable

SIO Isolator

Isolator Link Cable

External machine
communication
cable

Terminal Resistance

Controller

Single-phase

(In case of SCON)

24V Power-

supply

PS2

24V Power-

supply

PS4

24V Power-

supply

PS3

24V Power-

supply

PS1

(axis 1)

(axis 2)

SIO Isolator

Host side

Link Connection
(To the next isolator)

Signal

isolation

Signal

isolation

Power

isolation

SIO Isolator RCB-ISL-SIO

Operation Manual

First Edition

Thank you very much for purchasing our product.

Make sure to read this Operation Manual to ensure correct use for safety.

1. Scope

The RC-SIO isolator is used to isolate the SIO (RS485) communication line
between the controllers.
There are the cases such that the distance to the control box is long, or the
communication ground (0V) line is not shared because both the DC24 type
controllers and AC100V/200V type controllers are used. In such cases, by means
of isolating the communication line using this RC-SIO isolator, the power can be
supplied to each of the controllers independently.

The controllers connectable to this product are as follows.

・PCON-C/CG，CY，SE，CF

・ERC2，ERC2-SE

・ACON-C/CG，CY，SE，

・SCON

・RCP2

・Gateway Unit

・ROBONET

2. Specifications

Item Specifications

Remarks

Power supply

DC5V

Supplied from the axis 1
controller

Number of
connectable
controllers

2 per SIO module

Surrounding air
temperature

0 to 40℃

Surrounding
humidity

95%RH or less (non-condensing)

Surrounding
environment

There should be no corrosive gas, flammable
gas, oil mist and/or dust.

Isolation
resistance

10M

Ω

or more at DC500V

Isolation
strength

DC60V continuous

・Between the e-Con

connector and modular
connector

・Between the modular

connector axis 1 and
the axis 2

Protection class IP20

Weight Approx.

40g

External
dimensions

25W×126.5H×37D mm

Mounting
method

35mmDIN rail

Accessories

･Terminal Resistance

(220

Ω,1/4W, with a e-Con connector) 1unit

･e-Con connector 1unit

3. Names and Functions of Each Section

Name Functions

① e-Con Connector

Connector for connecting the
communication line (RS485)
with the host or linking the
connectors when two or more
connectors are used.

② POWER LED

When the 5V power is supplied
through CN1 (supplied from
the axis 1 controller), it is
turned ON in green. However,
in the case that the
communication speed is slow,
it flashes. When the power is
not supplied, it is turned OFF.

③ SD LED

It flashes during the data
transmission from the
controller side to the host side.
When the data transmission is
stopped, it is turned OFF.

④ RD1/RD2 LED

It is displayed when the data
receipt in the1st/2nd controller
from the host side. It is turned
ON in green during data
receipt operation. When the
data receipt is stopped, it is
turned OFF.

⑤ axis 1 6-pole

Module Connector
CN1

Connector for connecting the
communication line for the axis
1 controller

⑥ axis 2 6-pole

Module Connector
CN2

Connector for connecting the
communication line for the axis
2 controller

4. External Dimensions

5. Inner Block Diagram

The communication line (RS485) on the host side is isolated from the
communication line (RS485) on the controller side using the signal isolation IC.
The power to the circuit for the signal isolation IC on the host side is supplied
from the axis 1 controller power unit. Therefore, make sure to connect CN1.

Connect the RCP2 controller to the axis 2 controller (CN2). It can not be connected to the axis
1 controller (CN1).

6. Connection Example

(1) Connection Example 1: In the case that the controller is connected to the host PC through

the SIO link :

In the case that the 0V line for the power to each controller can not be shared, or the
DC24V type controllers are used together with the AC100/200V controllers, the power
source can be separated for each controller as shown in the figure.

Cable Name

Model

Remarks

① USB

Cable

USB

Conversion

Adaptor

CB-SEL-USB
RCB-CV-USB

PC Software RCM-101-USB
Accessories

② Isolator

Communication
Cable

CB-RCB-SIO Preparation

separately

③

Isolator Link Cable

CB-ISL-SIO

Preparation separately

④ External

Machine

Communication
Cable

CB-RCA-SIO

PC Software accessories

1.PC software can not be used with this connection example.
2.Because the power to the primary circuit inside the SIO isolator is supplied from CN1, make sure

to connect CN1.

(2) Connection Example 2: In the case that the connector is connected to the host PC or PLC

through the SIO converter :

In the case that the 0V line for the power to each controller can not be shared, or the

DC24V type controllers are used together with the AC100/200V controllers, the power
source can be separated for each controller as shown in the figure .

Because the power to the primary circuit inside the SIO isolator is supplied from CN1, make
sure to connect CN1.

CAUTION

e-Con Connector
(Left) CN3
(Right) CN4

axis 1
6-pole
Module Connector

axis 2
6-pole
Module Connector