User Manual

13
Siemens AG
A6V11185116_en_a
Building Technologies 2017-08-11
M-Bus
CM+, CM- (T14)
Controller M-Bus master
Bus connection terminals CM+, CM- (interchangeable)
Bus connection / electronics not galvanic isolated
Bus voltage DC 28 V (short-circuit-proof)
Bus length max. 50 m
Number of bus devices (stand. load 1.5 mA) max. 3
Cable types, bus topology, bus termination Refer to M-Bus norm DIN EN 13757
Baud rate 300, 2400
LED for BSP run/stop
Mode LED status
SW update mode (download active on a
new BSP, application)
Alternating between red and green every
second
Application running Green on
Application loaded but not running Orange on
Application not loaded Orange on
BSP error (software error) Red flashing at 2 Hz
Hardware error Red on
NOTICE
LED for bus is not in operation.
Connection terminals
Possible plugs for I/O signals and
communication (available on request)
Phoenix FKCVW 2,5/x-ST
Phoenix FKCT 2,5/x-ST
Phoenix MVSTBW 2,5/x-ST
Possible plugs for power supply
(available on request)
Phoenix FKCVW 2,5/2-ST OG
Phoenix FKCT 2,5/2-ST OG
Phoenix MVSTBW 2,5/2-ST OG
Solid wire 0.5…2.5 mm²
Stranded wire (twisted or with ferrule) 0.5…1.5 mm²
Cable length
In compliance with the load, local
regulations and installation documents
Real-time clock
Buffering with internal Gold Cap min. 8 hours
SD card
SD card At the right side of the housing
Max. capacity 32 GB
Format FAT32