Data Sheet for Product
6/18
Siemens PXC….D – Automation stations, compact model CM1N9215en_25
Smart Infrastructure 2022-01-15
Technical data
General device data Operating voltage
AC 24 V ± 20% (SELV / PELV) or
AC 24 V class 2 (US)
Operating frequency
50/60 Hz
Power Consumption
(depending on field devices)
PXC12....D max.24 VA
PXC22....D max.26 VA
PXC36....D max.35 VA
Internal fuse
5 A
Operating data Processor PXC12/22....D Motorola Power PC MPC852T
PXC36....D Motorola Power PC MPC885
Memory PXC12/22....D 16MB SDRAM / 8MB FLASH
(24MB total)
PXC36....D 64MB SDRAM / 16MB FLASH
(80MB total)
Accuracy class
0.5
Scan
cycle
Max. 1 s
Data backup in case of
power failure
Battery Backup of Realtime Clock
Lithium Type BR2032 (optional CR2032)
(field replaceable)
Battery operation (cumulative): 10 years
Without load: 10 years
Battery Backup of SDRAM 1x AA:
(field replaceable)
Lithium Type FR6/AA:
PXCxx.1;
PXC12/22...D series K and later;
PXC36...D series D and later
Alkaline: PXC12/22...D up to series H;
PXC36...D up to series C
Battery operation (cumulative): min. 2 weeks
Without load: Lithium 10 years
Without load: Alkaline 4 years
Interface, room units
Interface type
PPS2
Supply class
4
PPS2 baud rate
4.8 kBit/s
Interface, island bus Pluggable screw terminal (CS, CD)
Additionally,
(Terminal 82) must be
connected to conductor
(system neutral of
the island bus system).
Short circuit proof
Interfaces, communication PXC....D PXC...-E.D
Building Level Network LONWORKS FTT Transceiver
(Screw terminals)
10 Base-T / 100 Base-TX
IEEE802.3, Auto
-
sensing (RJ45)
Local Communication
(HMI, Tool) (RJ45)
PXM10 (RS-232)
PXM20 (BACnet/LonTalk)
FW Download Tool
--
Local Communication
(HMI) (RJ45)
PXM10 (RS-232)
PXM20 (BACnet/LonTalk)
PXM10 (RS-232)
One PXM10 operator unit and one PXM20
per automation station may be connected.
But not twice the same type.
One PXM10 on RJ45
Binary inputs DI...
Contact voltage
DC 20 ... 25 V
Contact current
10 mA
Contact transfer resistance
Max. 200
(closed)
Contact isolation resistance
Min. 50 k
(open)