User`s guide

3: ADCCP NRM DLI Functions
DC 900-1317J 79
A iProtModifier field value of one means that the indicated active NRM secondary sta-
tion has received no polls from the primary station within the poll timer period config-
ured by the client (see Tab le 3 –8 ). This exception applies only to active NRM secondary
stations (in the data transfer state).
A iProtModifier field value of two means that normal polling operations have resumed
for the indicated active NRM secondary station following a previous data poll timeout.
This event restarts the previously expired poll timer for the indicated NRM secondary
station.
A iProtModifier field value of three indicates that the retry limit specified by the client
(see Table 3–8 on pa ge 75) has been exceeded. The ICP continues to attempt retrans-
mission until the client resets or disables the station or the transmission succeeds.
A iProtModifier field value of four indicates that no flags have been detected on the phys-
ical link within the flags timer period configured by the client (see Ta bl e 3–8 ). This
exception occurs when the physical link is disabled or out of service. When the condi-
tion clears, data traffic resumes. This exception condition is reported only on links that
have configured a secondary NRM station.
3.4.26 DLI_PROT_GET_STATISTICS_REPORT Packet
The client uses this packet to request a statistics readout from the ICP. Statistics are
available on a per physical link basis only. The client must specify the
usProtCommand
field (DLI_PROT_GET_STATISTICS_REPORT) and the link ID.
3.4.27 DLI_PROT_RECV_STATISTICS_REPORT Packet
The ICP uses this packet to reply to client requests for statistics. The ICP specifies the
usProtCommand field (DLI_PROT_RECV_STATISTICS_REPORT), the link ID, the
usProtXParms[1] field (data size), and the data area containing the statistics (see
Ta ble 3 –1 0). The ICP then clears the local statistics variables for the specified physical
link.