
Communication Layers' Attributes
Appendix D
D-5
System-Load Parameters:
Description:
LD Wait Data Timeout
The amount of time the loadable device will wait for LoadData
or GroupStatusRequest PDUs before timing out. This should
also take into consideration worst case network and inter-node
processing delays.
LD PDU Retry
The number of times PDUs other than the LoadRequest PDU
will be retried if timeouts are occurring. When this counter is
exhausted, the loadable device machine is aborted and enters
the INACTIVE state.
LD Block Size
The maximum number of data bytes in the LoadData PDU.
System-Load Actions:
Description:
Perform a System Load
Initiates a system load (initial program load).
The following table lists the MMS attributes for the OSI coprocessor.
MMS Parameters:
Description:
Retain MMS Objects
Specifies that all MMS domains, program invocations, named
variables, named variable lists, and name types will be saved
in non-volatile memory.
MMS Security Option
Turns the master MMS security mechanism ON and OFF.
MMS Client Timeout
Number of seconds the client will wait for a response from a
server before it errors the message instruction and aborts the
connection (range 1 to 120 seconds, default is 60 seconds).
MMS Number of Outgoing Connections
Reserved
Number of MMS connections reserved for use by the rung
ladder program.
MMS Minor Version Number
Specifies the version of MMS that is in use: IS or DIS.
MMS Counters:
Description:
MMS Maximum Number of Connections
Total number of MMS connections supported by the OSI
coprocessor.
MMS Current Number of Outgoing
Connections
The number of currently open connections the local system
has initiated.
MMS Current Number of Incoming
Connections
The number of currently open connections a remote system(s)
has opened to the local system.
MMS Number of Reject PDUs Sent
The total number of MMS Reject PDUs the local system has
sent since its last powerup or reset.
MMS Number of Reject PDUs Received
The total number of MMS Reject PDUs the local system has
received since its last powerup or reset.
MMS Number of Aborts Sent
The total number of Abort requests the local system has sent
since its last powerup or reset.
MMS Number of Aborts Received
The total number of Abort indications the local system has
received since its last powerup or reset.
MMS Attributes
Содержание PLC-5 MAP/OSI
Страница 1: ...PLC 5 MAP OSI Software User Manual Cat No 1785 OSI AB Parts...
Страница 4: ...Table of Contents iii OSI Layer Management E 1...
Страница 57: ...Chapter 4 Basic Programming Techniques 4 7 For example B7 6 10 AB Parts...
Страница 91: ...Mapping MMS Data Types onto PLC 5 40 5 60 File Types Appendix A A 2 T ACC D 16 AB Parts...