User Manual

CM2N8889E / 10.1999 Siemens Building Technologies
2/4 Landis & Staefa Division
The VISONIK devices shown below can be used as dial-up communication partners for
an autonomous BPS. In applications, two devices can be defined as partner 1 and
partner 2, for example, DCS and teleterminal:
COM1/TTY1
DCS
BPS
ECU
T+T
BPS
8889Z02E
Partner 1
of BPS
Partner 2
of BPS
Teleprinter
Teleterminal
The partners shown in the illustration are the following devices with the following
functions:
Partner Explanation/Function
DCS Data and Communication Server, with or without Insight as a:
−
own DCS with process image of the associated BPS and updated
plant images and trend plots, etc. in Insight
−
foreign DCS without process image of the relative BPS
ECU Enhanced Communication Unit: Ring master and communication
devices of a separate SDLC ring with several process stations. The
ECU, for instance, temporarily connects the stations to a higher DCS.
BPS Another autonomous tele BPS (or PRV1, EKL-X))
Teleterminal PC with VISOTOOL Editor for remote BPS operation and monitoring
Teleprinter Separate printer for BPS alarm and error messages
The following applies to the devices which represent partner 1 and partner 2 of the
BPS:
– The devices can either be of the same type or different
– Each device may assume the role of partner 1 or partner 2
The dial-up communication functions that are possible depend on the respective device
and are identical for each partner. However:
If one of the partners is a DCS, only
one
of them can serve as its own DCS, i.e., the
partner defined as partner 1. Only this partner can save and update the process image
of the respective tele BPS.
Please note the following:
– If the BPS is autonomous, it can communicate with each partner directly as shown
above.
– If the BPS is part of a separate SDLC ring, an ECU must be used for dial-up
communication.
Exception:
Teleterminal as a partner.
VISONIK BPS dial-
up communication
partner
Overview
Partner and functions
Partner criteria
BPS on SDLC ring