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More than 90% of RKC products are supplied with a communication function, all of which have various types of protocols. In this section, we will introduce you to some protocols that are used in RKC products.
This protocol is useful to reduce the programming on the PLC by the use of a HEX code and non-procedure protocol to communicate with a PLC. This type of communication is used in the SR Mini (H-PCP with Z-190 option).
Modbus is a communication protocol based on Modbus (RTU) by Modicon. By using an integrated protocol, PLC programming can be simplified and reduced while reducing total communication time in the communication between a PLC and many other devices in the field, such as sensors and actuators. The use of RS-485 hardware is cost-effective. This protocol is often used in linking FPD for FA and PA to control devices.
This is a communication protocol used in Yaskawa PLC. This protocol is used in RKC's SR Mini systems.
Profibus-DP protocol, specified by the Foundation of Profibus, is an open network that is designed to handle a large quantity of data at a high speed. RKC offers a COM-G communication converter that can be used with REX-F, CB, SA100/200, LE100 and the SR Mini HG System.
DeviceNet, specified by ODVA, is an open network designed to handle a large quantity of data at a high speed. RKC offers COM-H communication converter that can be used with REX-F, CB, SA100/200, MA 900/901, LE100 and the SR Mini HG System.
This communication is used to connect to SX bus used in a PLC from Fuji Electric. This field bus is designed to handle a large quantity of data at a high speed. RKC offers a special PCP for SX bus in SR Mini HG series, and TIO modules (excluding some modules) can be connected.
Modbus/TCP is an open field network provided with the Modbus protocol on the TCP/IP protocol of Ethernet.
This protocol is used in RKC's SRV series (V-TIO-P, V-TIO-Q) and SR Mini HG (H-LNK-B).
FPD: Field Process Device
ODVA: Open DeviceNet Vendors Association. ODVA is the organization that manages the DeviceNet technology and promotes the worldwide adoption of DeviceNet in industrial automation.
Profibus-DP: is used in time-critical applications between an automation system and distributed devices (remote I/O, inverter, etc). Profibus-DP is also defined as IEC61158 and EN50170.
Ethernet is a registered trademark of Xerox Corp.
Modbus is a registered trademark of Schneider Electric.