Guardian Programming Reference Summary for pTAL and TAL

SETMODE Operations
Guardian Programming Reference Summary for pTAL and TAL—522631-001
11-27
163 SNAX:Enhanced CDI mode
param1
= 0 enables normal mode (disables all enhanced CDI support).
= 1 enables enhanced CDI mode.
= 2 enables special WRITEREAD mode (allows applications to determine the
setting of CDI by using the WRITEREAD procedure; using WRITEREAD
causes the outbound data buffer to be sent with CDI enabled).
The param2 parameter is not used with function 163.
A SETMODE 163 call applies only to the opener, not to the device that is
opened; another SETMODE 163 call must be made if the file is closed.
Enhanced CDI mode is supported only by the SNAX/XF and SNAX/CDF
products. For more information about enhanced CDI mode, refer to the
SNAX/XF Application Programming Manual and the SNAX/CDF Application
Programming Manual.
165 SNAX:Exception response (ER) mode
param1
= 0 disables ER mode. The LU sends outbound LU-LU FMD requests in
definite response (DR) mode. This is the default value if SCF or SPI has not
been used previously to configure ER mode; otherwise, the SCF or SPI
configuration value is used.
= 1 enables ER mode for applications existing prior to the introduction of ER
mode. The LU sends outbound LU-LU FMD requests in ER mode. However,
error 122 is sent on a negative response instead of error 951.
= 2 enables ER mode for applications using the ER mode features. The LU
sends outbound LU-LU FMD requests in ER mode. Error 951 is sent on a
negative response.
The param2 parameter is not used with function 165.
The last-params [0] parameter contains the previous value of param1.
The last-params [1] parameter contains the number of outbound requests
required per device before an ER mode sync point is automatically generated
on behalf of the user.
ER mode is supported only by the SNAX/XF product. Specifying this function
for SNALU causes an error 2 (invalid operation) to be returned. Passing a
value other than one of those listed above causes an error 590 (invalid
parameter value) to be returned. A SETMODE 165 call applies only to the
opener, not to the device that is opened; another SETMODE 165 call must be
made if the file is closed.
For more information about ER mode, refer to the SNAX/XF Application
Programming Manual.
<function> Parameters and Effect