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Have a question or need help?
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Solution
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The Modbus Slave I/O interface allows connecting with Modbus slave(s) to exchange coil and register data. Using a standard network interface card, this protocol can be easily and rapidly integrated into any simulation model. This driver provides an asynchronous TCP/IP communication interface and an IP aliasing mechanism allowing assigning different IP addresses to each slave/outstation instances even if a single physical network interface (i.e., Ethernet port) is used. |
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Modbus is a data communications protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). Modbus has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices. It is widely used for Industrial Automation and Energy system applications. |
Software Platform Compatibility
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Product Selection Guide
Modbus TCP, RTU or ASCII require software license OP3261, which comes with 50 data points.
If additional data points are required, then they may be added via product OP3050.
Modbus TCP
Modbus TCP can be added to real-time simulators without the need for additional hardware.
However, since real-time simulators come with at least one available Ethernet port, if additional physical Ethernet ports are required on the real-time simulator, these can be added via a kit.
Note that for applications requiring many Ethernet ports,the OP4510 and OP4512 simulators are not recommended.
Modbus RTU
For Modbus RTU, applications requiring RS-232 are supported natively by real-time simulators with one serial port.
If RS-485 or additional RS-232 ports are required, then an OP3310 PCIe serial card must be added to the system.
The OP3310 PCIe serial card 16 ports is not compatible with the OP4510, OP4512, and OP4610XG simulators.
Modbus ASCII
Modbus ASCII applications require the use of an external gateway (EKI-1221-CE) to convert Modbus TCP to Modbus ASCII.
Type | Description | Product Number | Simulator Compatibility | |||||||||
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OP4510v2 | OP5033XG | OP5600v2 | OP5700 | |||||||||
Driver | Driver license for Modbus Slave protocol using TCP-IP, RTU or ASCII interfaces. 50 I/O data points are included. For additional data points, add OP3050 (see below). | OP3261 | YES | YES | YES | YES | ||||||
Additional data points | License for additional I/O data points for Ethernet-based communication protocols. 1,000, 5,000, or 30,000 (unlimited) data points may be added. License OP3261 is required. | OP3050-1000 | YES | YES | YES | YES | ||||||
Add-on module | Dual-port PCI-E X1 PCIe X1 Gigabit Ethernet Kit for OP4xxx Series of Real-Time Simulators*. Can be added if more physical Ethernet ports are required. | OP3821 | OP4510v2 | |||||||||
OP3821-4610 | OP4610XG | |||||||||||
Add-on module | Intel I350T4V2 Quad Port Ethernet Server Adapter 10/100/1000 Mbps for OP5xxx Series of Real-Time Simulators*. | I350T4V2BLK | YES | YES | YES | |||||||
Add-on module | Serial Board 8-port RS-232/422/485 PCIe - Low Profile for XG Series. Includes: 1x Cable SCSI VHDCI 68 male to 8-port DB9 Male Connector*. | OP3310-08-K1 | OP4610XG | YES | YES | YES | ||||||
Add-on module | Serial Board 16-port RS-232/422/485 PCIe. Includes: 2x Cable SCSI VHDCI 68 male to 8-port DB9 Male Connector*. | OP3310-16-K1 | YES | YES | ||||||||
Add-on module | Serial Board 16-port RS-232/422/485 PCIe. Includes: 2x Cable SCSI VHDCI 68 male to 8-port DB9 Male Connector*. | OP3310-16-K2 | YES | |||||||||
Add-on module | Modbus Gateway 1-port. Uses to convert Modbus between ASCII and TCP modes.
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* Available PCIe slot required. Note that OP4510 and OP4512 simulators only have one PCIe slot.