What protocol type does Mitsubishi PLC use?

Mitsubishi PLC (Programmable Logic Controller) is a controller widely used in the field of industrial automation. It controls mechanical equipment by receiving input signals, executing user-written programs, and then outputting control signals. In the communication process of Mitsubishi PLC, different communication protocols need to be used to achieve data transmission and interaction. The following is an introduction to some of the main communication protocols used by Mitsubishi PLC.

1. Mitsubishi iQ-F Series PLC Communication Protocol

Mitsubishi iQ-F series PLC is a high-performance, high-reliability PLC product launched by Mitsubishi Electric. It supports multiple communication protocols, including:

1.1. CC-Link IE Field Basic Protocol

The CC-Link IE Field Basic protocol is an open industrial communication protocol based on Ethernet that can achieve high-speed, large-capacity data transmission. The iQ-F series PLC supports the CC-Link IE Field Basic protocol and can communicate with other devices that support the protocol.

1.2. CC-Link Protocol

The CC-Link protocol is a fieldbus-based communication protocol that enables real-time data exchange between devices. The iQ-F series PLC supports the CC-Link protocol and can communicate with other devices that support the protocol.

1.3. Modbus protocol

Modbus protocol is a widely used industrial communication protocol that enables data exchange between devices. iQ-F series PLC supports Modbus protocol and can communicate with other devices that support this protocol.

1.4. Ethernet/IP Protocol

Ethernet/IP protocol is an Ethernet-based communication protocol that enables data exchange between devices. iQ-F series PLC supports Ethernet/IP protocol and can communicate with other devices that support this protocol.

1. Mitsubishi FX series PLC communication protocol

Mitsubishi FX series PLC is an economical PLC product launched by Mitsubishi Electric. It supports multiple communication protocols, including:

2.1. RS-232C Protocol

RS-232C protocol is a serial communication protocol that can realize data exchange between devices. FX series PLC supports RS-232C protocol and can communicate with other devices that support this protocol.

2.2. RS-485 Protocol

RS-485 protocol is a differential signal serial communication protocol that can realize data exchange between devices. FX series PLC supports RS-485 protocol and can communicate with other devices that support this protocol.

2.3. USB Protocol

The USB protocol is a universal serial communication protocol that enables data exchange between devices. The FX series PLC supports the USB protocol and can communicate with other devices that support the protocol.

2.4. Ethernet Protocol

Ethernet protocol is a communication protocol based on Ethernet that can realize data exchange between devices. FX series PLC supports Ethernet protocol and can communicate with other devices that support this protocol.

1. Mitsubishi Q series PLC communication protocol

Mitsubishi Q series PLC is a high-performance, high-reliability PLC product launched by Mitsubishi Electric. It supports multiple communication protocols, including:

3.1. CC-Link IE Field Advanced Protocol

CC-Link IE Field Advanced protocol is an open industrial communication protocol based on Ethernet that can achieve high-speed, large-capacity data transmission. Q series PLC supports CC-Link IE Field Advanced protocol and can communicate with other devices that support this protocol.

3.2. CC-Link Protocol

Q series PLC supports CC-Link protocol and can communicate with other devices that support this protocol.

3.3. Modbus protocol

Q series PLC supports Modbus protocol and can communicate with other devices that support this protocol.

3.4. PROFINET protocol

PROFINET protocol is an open industrial communication protocol based on Ethernet, which can realize high-speed and large-capacity data transmission. Q series PLC supports PROFINET protocol and can communicate with other devices that support this protocol.

1. Selection and application of communication protocols

When choosing a Mitsubishi PLC communication protocol, the following aspects need to be considered:

4.1. Communication distance

Different communication protocols have different communication distances. For example, the RS-232C protocol has a shorter communication distance and is suitable for short-distance communication, while the Ethernet protocol has a longer communication distance and is suitable for long-distance communication.

4.2. Communication rate

Different communication protocols have different communication rates. For example, the RS-485 protocol has a low communication rate and is suitable for low-speed communication, while the Ethernet protocol has a high communication rate and is suitable for high-speed communication.

4.3. Device Compatibility

When selecting a communication protocol, you need to consider compatibility with other devices. For example, if other devices support the Modbus protocol, then choosing the Modbus protocol can facilitate communication.

Security

In some special occasions, such as chemical industry, electric power and other industries, communication security is very important. When choosing a communication protocol, you need to consider the security of the protocol, such as whether it supports encrypted communication.

4.5. Cost

When choosing a communication protocol, you also need to consider the cost factor. Different communication protocols may require different hardware devices and software support, and the cost will also vary.