romnov (Customer) asked a question.
I am new to PLC & C-more software, I want to read data coming from the PLC address of 0x0008. I cannot add the address into the PLC address location in Tag Name Database. It does ask me Memory Type & Address. I enter 3 for ReadOnly then address as 0008. Nothing Shows up. I am Using Modbus TCP/IP Ethernet.
Hello Garry, Thanks for replying.
I don't exactly know what PLC we are using, But I select Modicon Modus TCP/IP Ethernet in the PLC Protocol and then enter the IP.
Hi romnov,
Using the Help Menu in the C-More EA9 Software, search for Modicon Modbus Addressing. This will give you a memory map for the addresses.
Regards,
Garry
Hey Garry,
I exactly do not understand how should be the PLC address format, to send the command to get the response and print on the screen.
I want to access 0x0006 Address(2 Byte) from PLC, here is the format I am entering to get the response and display it on Touch Panel..
Hi romnov,
You want to access the 0x0006 in the PLC. (2 bytes)
This is stored as an input register (3) or holding register (4). See the chart sent earlier.
The address would then be:
Memory Type: 3 or 4
Address: 6
Note: Address may be offset by 1.
Regards,
Garry
Note: The C-More EA9 Series uses Modbus TCP for the protocol.
https://accautomation.ca/series/c-more-hmi-series-panel/
Thank You Garry,
The problem was in communication. My PLC uses WIFI and it doesn't work fine.
I tried connecting with ethernet, and works Fine. Thanks!
Hi romnov,
You want to access the 0x0006 in the PLC. (2 bytes)
This is stored as an input register (3) or holding register (4). See the chart sent earlier.
The address would then be:
Memory Type: 3 or 4
Address: 6
Note: Address may be offset by 1.
Regards,
Garry
Note: The C-More EA9 Series uses Modbus TCP for the protocol.
https://accautomation.ca/series/c-more-hmi-series-panel/