MsSQL Library for CODESYS V3.5 Without Store

Remote server is unreachable, possible problems can be:

• Server is turned off
• Server is in different subnet than PLC and gateway is wrong
• Firewall is setup wrongly. See chapter 2.1.6 in User Guide
• Server is not configured for TCP/IP communication. See chapter 2.1.7 in User Guide or check this video.
• sIpAddress contains Hostname such as ‘localhost’ or ‘TestSQLServer’

1. Install to your codesys enviroment package Device Reader.
2. Load it to your CPU.
3. Check what functionalities are available. If single device license is green. Then you can use library from Codesys store. If not, then you have to use product MsSQL Library without Store.

Load into your PLC with Codesys Runtime Example project with fbMsSQL library. Load it to your CPU and run project. On output of this block you will find variable sMacAddress with MAC Address which is used for licensing.

Note! Dollar sign($) is needed if you are using ‘ in string and if you want to store string into database   N$’Your_string$’.

INSERT INTO [dbo].[Table_TEST] ([text]) VALUES (N$’Hello World 🙂$’)

Example of command to how to insert datetime to MsSQL database:
EXEC sp_insertData @TIMESTAMP = N$’2016-11-12 19:45:33$’, @Value= 12

Explanation:
EXEC sp_insertData – execution stored procedure sp_insertData which is declared on MsSQL Server. Note! If you will create stored procedure on MsSQL Server side, don’t forget to setup execute permission to user which is used on PLC.
@TIMESTAMP= N$’2016-11-12 19:45:33$’ – inserting datatime to database as a string value, but in PLC string has to be used dollar sigh($) before ‘.
@Value = 12 – is just normal integer value

Create FIFO buffer with appropriate datatype(e.g. strings), which will work with State machine and execute commands one by one.

Best approach is to create state machine such as CASE structure with states:

1. Idle
2. Login(set xConnect to true) after trigger
3. Execute batch of  commands(set xExecuteSQL to true)
4. Disconnect(set xDisconnect to true)

We will provide you free of charge new activation number for new PLC.

There is more possible ways:
If you are trying:

• Log to database– tTimeout means that it failed and you get error and you have to try it again with different parameters according error message.
• Executing Query– tTimeout means that command failed in some step and you have to try repair query due to error

Basically timeout check if the state machine is longer time in some step. So 1s is enough if you have local database. For instance if I’m connecting from Czech Republic to Amazon SQL Server in Oregon, sometimes it can exceed 1s.

No, this is Single License library. So for every PLC where you will use this library, you need to have new license. License is bind to SN of PLC.

Whole process how to activate license can be found here.