| Applies To: |
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| Summary: |
| I have a CitectSCADA project in which I
have defined 32 I/O Devices, with each I/O Device using 1 unique
port. When I started CitectSCADA runtime, everything worked
correctly and the devices were online. However, when I added
another I/O Device to the project, CitectSCADA reported "Too many
channels opened" errors in the kernel.
Does the TIDIRECT driver support more than 32 I/O Devices? |
| Solution: |
| The TIDIRECT driver up to and including
V3.00.00.001 only support upto 32 channels. This translates to 32
unique ports in CitectSCADA. Thus, if you are using 1 port per I/O
Device then you can only connect up to 32 I/O Devices.
From version V3.00.01.000 onwards, the limit has been increased to 250 channels. This will allow you to connect up to 250 I/O Devices using 1 unique port per I/O Device. |
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