MODBUS(R)/TCP Interface Module User's Manual

1 MODBUS /TCP Interface ModuleUser's Manual -QJ71MT91-GX Configurator-MB (SW1D5C-QMBU-E) A - 1 A - 1 SAFETY PRECAUTIONS (Always read these instructions before using this equipment.) Before using this product, please read this Manual and the relevant manuals introduced in this Manual carefully and pay full attention to safety to handle the product correctly. The instructions given in this Manual are concerned with this product.

2 For the safety instructions of the programmable controller system, please read the User's Manual of the CPU Module to use. In this Manual , the safety precautions are classified into two levels: "WARNING" and "CAUTION". Under some circumstances, failure to observe the precautions given under "CAUTION" may lead to serious consequences. Observe the precautions of both levels because they are important for personal and system safety. Make sure that the end users read this Manual and then keep the Manual in a safe place for future reference.

3 [Design Precautions] WARNING When controlling a running programmable controller (modifying data) by connecting peripheral devices to the CPU Module or connecting a personal computer to the intelligent function Module , configure an interlocking circuit in a sequence program so that the safety of the overall system is always maintained. Also, before performing other control operations (program modifications and operation status modifications (status control)) on the running programmable controller, be sure to read the Manual carefully and thoroughly confirm the safety.

4 Especially in the above mentioned control operations that are performed from an external device to a remote programmable controller, any problems on the programmable controller side may not be dealt with promptly due to a data communication error. In addition to configuring an interlocking circuit in a sequence program, determine how the system handles data communication errors, etc. between the devices and the programmable controller CPU. Do not write any data in the "system area (Use prohibited)" of the buffer memory of the intelligent function Module .

5 Also, do not output (turn on) the "use prohibited" signal, which is one of the output signals from the programmable controller CPU to the intelligent function Module . If data is written to the "system area (Use prohibited)" or the "use prohibited" signal is output, there is a risk that the programmable controller system may malfunction. A - 2 A - 2 CAUTION Do not bundle the control wires and the communication cables with the main circuit and the power wires, and do not install them close to each other.

6 They should be installed at least 100 mm ( in.) away from each other. Failure to do so may generate noise that may cause malfunctions. [Installation Precautions] CAUTION Be sure to shut off all phases of the external power supply used by the system before mounting or removing the Module . Failure to do so may damage the Module . Use the programmable controller in the operating environment that meets the general specifications described in the User's Manual of the CPU Module to use. Using the programmable controller in any other operating environments may cause electric shocks, fires or malfunctions, or may damage or degrade the Module .

7 While pressing the installation lever located at the bottom of the Module , insert the Module fixing projection into the fixing hole in the base unit to mount the Module . Incorrect Module mounting may cause a malfunction, failure, or drop of the Module . In an environment of frequent vibrations, secure the Module with the screw. Be sure to tighten the screws using the specified torque. If the screws are loose, it may cause the Module to short-circuit, malfunction or fall off. If the screws are tightened excessively, it may damage the screws and cause the Module to short-circuit, malfunction or fall off.

8 Do not directly touch any conductive part or electronic component of the Module . Doing so may cause a malfunction or failure of the Module . [Wiring Precautions] WARNING Be sure to shut off all phases of the external power supply before installation or wiring. Failure to do so may result in an electric shock or damage to the product. Use crimp-contact, pressure-displacement or soldering to wire the connectors for external connections properly using the manufacturer-specified tools. If the connection is incomplete, it may cause the Module to short circuit, catch fire, or malfunction.

9 A - 3 A - 3 CAUTION Securely connect the connector to the Module . Make sure to place the communication and power cables to be connected to the Module in a duct or fasten them using a clamp. If the cables are not placed in a duct or fastened with a clamp, their positions may be unstable or moved, and they may be pulled inadvertently. This may damage the Module and the cables or cause the Module to malfunction because of faulty cable connections.

10 Wire the Module correctly after confirming the type of the connected Interface . If the cable is connected to a different Interface or wired incorrectly, it may cause a fire or breakdown. When disconnecting the communication and power cables from the Module , do not pull the cables by hand. When disconnecting a cable with a connector, hold the connector to the Module by hand and pull it out to remove the cable. If the cable is pulled while being connected to the Module , it may damage the Module and/or cable or make cable contact improper, causing a malfunction.