Today, let’s talk about how to interface with Omron PLC via Hostlink protocol.
O artigo que discutimos anteriormente:
Como integrar a gateway de computação periférica EG com a General Electric PLC
Como fazer a integração com o PLC Xinjie através do protocolo Modbus RTU
Como fazer a interface com os PLCs da série Keyence KV-8000 através do protocolo MC-3E
Como fazer a interface com os PLCs da série KV-7500 da Keyence através do protocolo KV TCP
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How to interface with Inovance PLC via Modbus RTU protocol
How to interface with AB PLC via PCCC protocol
How to interface with AB PLC via EtherNet/IP protocol
How to interface with Omron PLC via EtherNet/IP protocol
1. Ligação do hardware
Compatible PLC: CP Series
The Hostlink protocol uses serial communication. For this example, the PLC model CP1W-0026 uses RS485 communication. Simply connect the PLC’s 485 interface SDA- to the gateway’s B1 pin, and the PLC’s 485 interface SDB+ to the gateway’s A1 pin.
2. PLC Serial Parameters
Note the unit number (station number 1) and baud rate (9600-8-1-E). These parameters will be required for subsequent gateway configuration.
Note: DIP Switch Settings: 1 and 4 (OFF), 2, 3, 5, 6 (NO)
3. Configuração da porta de entrada
3.1. Configuração da ligação do PLC
Drag an Omron node from the left panel. Double-click to open the settings page and configure based on the PLC’s serial parameters as follows:
Protocolo: Select HostLink
Porta de série: Select RS485-1 (based on actual hardware connections)
Taxa de transmissão: 9600
Bits de dados: 8
Bits de paragem: 1
Paridade: EVEN
Station Number: 1
3.2. Configuração do ponto de dados
Enter the data points to be read in the Omron node’s parameter list. Once configured, the PLC data will be automatically retrieved at the set frequency. Data points are typically provided by PLC engineers. After obtaining the point list, enter data points in the format required by the gateway. For specific correspondence, refer to:（Pode utilizar o Google Chrome para traduzir） https://iotrouter.yuque.com/zn3vdn/eg8000/skfapgdm7332it5q
In the parameter list, fill in Address/Name/Data Type/Data Length sequentially. Set a 2-second cycle for periodic reading, as shown in the figure:
3.3. Ensaios
Click Deploy. Observe that a data point is printed every 2 seconds. Verify that the output value matches the actual value. Communication successful!
