This document provides a step by step procedure for setting up Internal Modbus I/O transfer in RAM.
PROCEDURE
- Log into the SN/RAM Web Browser
- Type the device's LAN/WAN IP, port 10000 into a web browser
- User Name: admin
- Password: Last six digits of the device's serial number
- Go to Automation > Local Station.
Here we will set up the local station number and name.
- Setup Station Name, Station Number and Modbus Local Port:
- Enable Modbus: Yes
- Station Name: RAM
- Station Number: 1
- Modbus Local Port: 502 (Standard TCP Port number for Modbus is 502)
- Click Save.
- Go to Automation > Modbus > Remote Stations
Here we will add a remote station for Internal I/O transfer.
- Click Add
- Enter details of the Remote station. For internal transfers the remote IP address is the local loopback address 127.0.0.1
- Station Name: Remote
- Station Number: 1
- Connection Type: IP
- Remote IP address: 127.0.0.1
- Remote IP Port: 502
- Click Finish.
- Remote station will appear in the table. Click Save.
- Click on the I/O Transfers button.
- Modbus I/O transfer page will appear. Click Add.
- A new window will appear. Enter details for the I/O transfer:
- Station Name: Remote
- Protocol: Modbus
- SendMode: Wait for Reply
- Port: TCP/IP
- Command Type: Write
- Local Type: Discrete Output
- Local Relative Address: 1
- Remote Type: Discrete Output
- Remote Address: 51
- Number of Registers: 8
- Click Finish.
- The I/O transfer will appear in the table.
- Internal I/O transfer setup is complete.
- Click Apply.
Testing Internal I/O Transfer
- Go to Automation > I/O Settings > Test I/O.
- Click on Test I/O
- In the drop down menu (Select Type) select Discrete Output.
- Start Address: 1 and Register Count: 8
- Click Add
- In the drop down menu (Select Type) select Discrete Output.
- Start Address: 51 and Register Count: 8
- Click Add
- Now the working of Internal I/O transfer can be tested by turning ON any outputs registers on DO0-DO7 and DO 50 - DO 57 will be ON.
Disclaimer
It is the customer's responsibility to review the advice provided herein and its applicability to the system. Red Lion makes no representation about specific knowledge of the customer's system or the specific performance of the system. Red Lion is not responsible for any damage to equipment or connected systems. The use of this document is at your own risk. Red Lion standard product warranty applies.
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