1. Outline of Product
The 232BD is an RS-232C communication board with a 9-Pin D-Sub. It is an insulated unit for signal
exchange. Connected to the main unit of the FX2N Series PLC,
it enables serial data transfer between the PLC and equipment via an RS-232C port.
1.1 Communication Functions and Applicable PLC
(Available in indicated version or later)
1.2 Outside dimensions and name of each part
The communication connector of the 232BD is the D-sub, 9-pin socket type. The table below shows the
pin arrangement.
1.3 System configuration
Only one function expansion board can be used for one main unit of FX2N.
FX2N-232-BD cannot be used by the plural. Other expansion boards cannot be used together with
FX2N-232-BD. For the system configuration, refer to the FX Series User's Manual - Data Communication
Edition offered separately.
2. Installation
Caution
• Use in the environments specified under the general specification in the manual.
Do not use the product in environments with excessive or conductive dust, corrosive or
flammable gas, oily smoke, moisture or rain, excessive heat, regular impact shocks or
excessive vibration, as it may result in electrical shock, fire, malfunction, damage or
deterioration on the product.
• Make sure to shut off the power outside the product before installing or wiring it.
Otherwise, electric shock or serious damage to on the product may occur.
• Never drop wire chips or shavings into the vent slits when drilling screw holes or performing
wiring, as they may cause fire, breakdown, or malfunction.
Securely install the 232BD to the designated port.
Poor connection may cause malfunction.
Communication
type
FX2N Function
Computer link V1.06
Data transfer via link protocol between PLC and computer
(specified as the master station).
No protocol
communication
V1.06
Serial communication without protocol between PLC and equipment via RS-232C
interface.
Optional
programming port
First
product
Optional port available for suitable programming tool when 232ADP is connected to
PLC.
Remote
maintenance
First
product
Program transfer or monitoring enabled via modem and phone line connected to serial
port of PLC.
Unit: mm (inches)
➀ Mounting hole (2-φ3.5)
➁ RXD LED: Lit during receive.
➂ TXD LED: Lit during send.
➃ Connector for RS-232C equipment
The top face of this connector is higher than the top face
of the PLC panel cover by approximately 7 mm (0.27").
➄ Hole for connector fixing screw (#4-40UNC)
➅ Connector for PLC
Accessories: Top cover for board 1
M3 screw to mount board 2
M3 s