User`s guide

3: ADCCP NRM DLI Functions
DC 900-1317J 65
The client specifies the usProtCommand field (DLI_PROT_SEND_SET_MULTIPNT_LIST), the link
ID, the
usProtXParms[1] field (data size), and the data field contents. The data field con-
tains a list of secondary stations (specified by station ID) on the indicated link that sup-
port the multipoint (selective broadcast) addressing concept.
The client uses the DLI_PROT_SEND_SET_MULTIPNT_LIST packet to identify two types of sec-
ondary stations:
• Local secondary stations on a link that are required to recognize selective broad-
cast frames addressed to them
• Remote secondary stations to be addressed when the primary sends data with
selective broadcast addressing
All stations specified must be on the same physical link, and no more than 32 stations
per physical link can support multipoint addressing at one time. If multipoint address-
ing is required on more than one link, the client sends a separate control packet for each
physical link.
Each time the client sets the multipoint list for a physical link, any previous multipoint
station list is deleted. The client may suppress multipoint addressing for all stations on
a physical link by sending this packet with the
usProtXParms[1] field (data size) set to
zero and no stations listed.
3.4.14 DLI_PROT_RESP_LOCAL_ACK Packet
This packet is valid only if the client has enabled ADCCP option 4 or 5 (see
Section 3.4.20.2 on page 71). In the
DLI_PROT_RESP_LOCAL_ACK packet optional argu-
ments, the
iICPStatus field reports a transmission status code, and the iProtModifier field
reports the type of packet being acknowledged.
Transmission status codes that can appear in the iICPStatus field are listed below. See
Table B–1 on page 120 for error descriptions.