Installation guide

30 DC 900-1564A
Synchronous Link Control (SLC) Programmer’s Guide
• The application writes a DLI_PROT_CONTROL command. There is no acknowledg-
ment; however, the application detects errors by reading a
DLI_PROT_CONTROL
response with a status that indicates the error.
3.10 Detecting Network Control
If an ICP link is configured for low-level or high-level SLC network service, then after
the application attaches the ICP link with either Master or Control access mode and
binds the link, it can detect network control over the link. To detect network control,
the application must perform the actions listed below.
• The application reads a DLI_PROT_CONTROL response.
3.11 Unbinding a Link
After the application attaches the ICP link with either Master or Control access mode
and binds the link, it can unbind the link. Unbinding a link places it offline to the appli-
cation. When no application with Master or Control access mode remains bound to an
ICP link, the link is offline to the SLC network. To unbind a link, the application must
perform the actions listed below.
• The application writes a DLI_ICP_CMD_UNBIND command.
• The application reads a DLI_ICP_CMD_UNBIND response with a status field that con-
firms or denies the request.
3.12 Reading Reports
After the application attaches an ICP link, it can read reports. The application can also
read reports after binding the link. Several types of reports are available. To read a spe-
cific report, the application must perform the actions listed below.
• The application writes a command requesting the desired report. Supported
report requests are: