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System description
15
TM800_D00165_00_M_XXEN/06.2015
External BMS bus
The external BMS bus enables communication with other TM800 alarm indicator and operator pan-
els, SMI472-12 or BMS-OPC servers. The master function is cyclically passed to the subsequent mas-
ter on the external bus. The TM800, with address 1, however, takes over some special tasks:
– As a "master clock", it synchronises the time of all devices on the internal BMS bus
– It ensures that the required supply voltage is available on the external BMS bus.
Messages can be displayed on any TM800 alarm indicator and operator panel via the external BMS
bus. The PC software TMK-SET is used to assign the messages accordingly.
A personal computer is recommended to be connected via the external BMS bus to the TM800 alarm
indicator and operator panel. Any information of the TM800 panels connected to the external BMS
bus can be displayed and set at a central point. If the personal computer does not feature an RS-485
interface, an RS-232/RS-485 converter DI-2 or a USB/RS-485 converter DI-2USB will be required.
3.3.4.2
USB interface
A personal computer can also be connected to the TM800 via the USB interface using a standard-USB
device cable (type A/type B). To access the USB interface plug, open the front plate.
Only the connected TM800 can be read out and set via the USB interface.
3.3.5
Programming and reading the TM800
3.3.5.1
Connection of the personal computer
Connect the TM800 to a personal computer:
directly via the USB interface or
via an RS-232/RS-485 converter DI-2 or a USB/RS-485 converter DI-2USB to the internal or exter-
nal BMS bus.
3.3.5.2
Optional software
You can use the PC software TMK-SET to read, display and change the TM800 settings.
You can use the PC software TMK-History to read the history memory of the TM800 (download
from http://www.bender-de.com).
BMS-OPC server
3.3.6
Firmware versions
The TM800 is controlled by an internal software (firmware).
All devices sharing one external BMS bus must be equipped with compatible
software versions. The following software versions are required:
TM
V 4.0 or higher
SMI472
V 2.03 or higher
All devices must be set to the same baud rate.
Содержание TM800
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