The following global parameter is used to determine the maximum number of caches available on a project or port basis.
Note: <PORT>_MAX_CACHE has a higher precedence than does the S90TCP_MAX_CACHE.
|
S90TCP_MAX_CACHE |
|
|
<PORT>_MAX_CACHE |
S90TCP_MAX_CACHE
|
For |
Project |
|
Purpose |
To set the maximum number of caches for the project. |
|
Value |
0 - 2000 (New projects can be configured for up to 2000 caches; existing projects can be configured for up to 1024 caches.) |
|
Default Value |
1024 |
Use the global parameter S90TCP_MAX_CACHE to change the cache size for the project from its default size.
<PORT>_MAX_CACHE
|
For |
Port |
|
Purpose |
To set the maximum number of caches for a single port. |
|
Value |
0 - 2000 (New projects can be configured for up to 2000 caches; existing projects can be configured for up to 1024 caches.) |
|
Comments |
<PORT> is the name of the S90 Triplex port to be configured such as S90TRI0, S90TRI1, etc. The value assigned to the global is the maximum port size. If a value larger then the maximum is specified, the largest allowed value will be used. |
|
Default Value |
1024 |
Use the global parameter <PORT>_MAX_CACHE to change the cache size for a specific port from its default size. Where <PORT> is the number of the port; for example S90TR10_MAX_CACHE.
Note: In some configurations,
supporting a larger message size may be beyond the capability of
Series 90-70 (as it is configured with the existing PLC
application). This is more likely to occur where the IC697CMM741
Ethernet cards are used for communications on the Series 90-70. If
communications becomes unstable as a result of using the larger
message size, it is recommended that the application continue to
use a cache size of 1024 bytes.
When confirming that the number of concurrent messages chosen is compatible with the PLC application, be sure to validate the application with the Series 90-70 in run mode running the complete PLC application.
|
|
Series 90 TCP/IP Triplex global parameters. |
