Programming instructions

FX3U Adapter Bus High Speed Pulse Output Module

The FX3U-2HSY-ADP module connects to the FX3U’s left

side expansion bus, and provides high speed pulse output

ability, up to 200KHz. The FX3U-2HSY-ADP module does

not require TO/FROM instructions. All data transmissions

to and from this module are directly into the PLC’s

memory. A maximum of 2 high-speed output modules can

be used on an FX3U CPU. These modules must be

located directly next to the CPU on the left hand side.

2.8 Communication Modules and Option Boards

Many times, more is required of a PLC system than monitoring inputs and

controlling output devices. Data may need to be passed to another PLC or even

a PC. A programmer may need to access the program to monitor an error or

make program changes, but the front port is occupied by an HMI.

The FX family has several modules that can be added to add communications

ability and solve problems like those stated above. Sometimes the solution

requires the implementation of a network to get the required connectivity. The

modules used for this will be discussed in the next section. In this section

modules used to simply augment the communications ability of the PLC will be

discussed.

The FX3U family of PLCs supports the addition of 2 serial ports via the option

boards and left side bus ADP modules. If using a BD board, only one ADP

module can be used. When not using the BD board, two ADP modules can be

connected.

RS-232 Communication Interface Module(s)

There are three modules that can be used to add an RS-232 port to the FX3U

PLC, the FX3U-232ADP, the FX2N-232IF and the FX3U-232-BD.

For the FX1S, FX1N, FX2N, and FX2NC, the FX2NC-232ADP will work. The

FX*N-CNV-BD is required for PLCs other than the FX2NC.