Siemens SM2 monitoring system 用户手册

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SM2 in computer networks
SM2 monitoring program
2.14 SM2 in computer networks
SM2 provides functions for the central online monitoring and control of monitored-data
acquisition in a computer network.
The monitored data is independently recorded on each host in the network by a local SM2
monitoring program, and is exchanged between the hosts via a LAN. In this way, the online
reports of all hosts can be output on any computer in the network.
There are also reports which output the combined monitored data of the various hosts.
All control statements for the acquisition of monitored data (changing monitoring cycles,
switching monitoring programs, etc.) can be entered on any host for all computers in the
network.
The SM2 functions for monitored-data acquisition in a network are also available in a
HIPLEX network.
Prerequisites for using SM2 in computer networks
1. An MSCF connection of type CCS (Closely Coupled System) must exist between all
hosts in the network.
For further information on this connection type, refer to the “HIPLEX MSCF” manual [4].
2. The SM2 functions for monitored-data acquisition in a network can only be used for
those computers in the network which run the same version of SM2.
3. SM2 must be started once on all computers in the network (e.g. with START-SM2) or at
least loaded via the DSSM command /START-SUBSYSTEM
SUBSYSTEM-NAME=SM2.
Selecting hosts with SM2
The privileged statement SELECT-HOSTS (see page 110) selects the computers to which
all subsequently entered SM2 statements are to be sent. This statement always applies to
the user who issues it. Following the END statement and a restart, the default value applies
again, i.e. SM2 statements are only executed on the local host.
The SHOW-SELECTED-HOSTS statement (see page 140) provides information on the
selected hosts. This includes the time of the last monitored variable queried.