ProSoft Technology ProTalk PTQ-PDPMV1 User Manual page 211

PTQ-PDPMV1 ♦ Quantum Platform
PROFIBUS DP Master Network Interface Module for Quantum
SAP number

SAP 10 is used for ping messages

SAP 11 is used for DPV1 status messages

No SAP is defined for slave status messages (FDL_Status)
The following table lists FDL services that are needed for the HSBY functionality.
The two right-hand columns indicate which services are used by the active and
remote (passive) Masters.
FDL Service
Open-Channel
SAP-Activate
IND-Resource-Provide
IND-Resource-Repeat-
Provide
Reply-Update-Multiple
FLC-Repeat-Exchange
SRD
SRD-Repeat
MAC-Repeat-Exchange
MAC-Reset
FDL_Status-repeat
SAP 10 is used for the DSAP of the responder (local (active) Master) as well as
for the SSAP of the initiator (remote (passive) Master).
The SRD-request is sent as a "low priority" FDL-message.
ProSoft Technology, Inc.
August 12, 2014
Description
Establish a channel to the FDL-layer
Opens up a Service Access Point at the responder
Makes a resource available for single SRD-requests
Makes a resource available for SRD-repeat-requests
Updates the SRD-response data
Reads out the latest SRD-request data
Sends an SRD-request (used for DPV1 status messages)
Sends an SRD-request cyclically (used for Ping
messages)
Exchanges SRD-request or SRD-response data
Resets ASPC2 during switchover
Sends an FDL_Status request cyclically (Used for Slave
status messages
Hot Standby Support
User Manual
Local Remote
(Active) (Passive)
Master Master
X X
X X
X
X
X
X
X
X
X
X
X
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