User Manual

6/10 © 2005 Siemens Switzerland Ltd. Subject to change
Building Technologies MeterProxy Small Building CM1N5658en
Building Automation 02.12.2005
Technical data
Operating voltage AC 24 V +/−10 %
Frequency
47..63 Hz
Power consumption
max. 0.4 A
Power consumption
max. 7VA
Internal fuse
Fusible links
Buffer battery
3 V Lithium battery
(CR2477N, exchangeable)
Buffer time
3 years
30 days in buffer mode.
In "buffer mode", pulses from the directly
connected meters continue to be acquired
and stored in the event of a power failure.
Main processor Intel XScale PXA255 200 MHz
Data storage (SDRAM) 64 MB
Flash memory 32 MB
Buffer memory (SRAM) 2 MB (for buffer mode)
Operating system Windows CE core 5.0
Hardware, host, data source, local input Device status (green/orange/red)
X11 busy Reserved for future functions
Data bits
8
Parity None
Stop bits
1
Baud rate Auto sensing
Network Ethernet 10/100 Mbps, RJ45
Status display LED with link display and connection
activity
Transmitter types NAMUR/S0/reed/semiconductor
Channel by channel parameter settings
Line length Max. 10m with buffer mode
Max. 20m without buffer mode
Meter frequency Max. 25 Hz per channel
T
on
>= 20ms
T
off
>= 20ms
X2 (relay) Reserved for future functions
X3 (relay) Reserved for future functions
X4 (analog in) 2x LG-Ni 1000
2x 0-10 V (linear curve)
X7 (COM2)
Connection for external M-bus level
converter
X8 (COM3) Reserved for future functions
X9 (COM4) Reserved for future functions
X11 (CompactFlash)
Reserved for future functions
X20 (USB)
Reserved for future functions
General device data
Functional data
LED displays
Modem interface
(COM1, X6)
Network interface
(X10)
Meter interface (X5)
A
dditional interfaces
.
.
.
.