Data Sheet for Product

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Siemens PXC....D PXC...-E.D + PXA40-… – Automation stations modular series CM1N9222en_18
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)
Safety extra-low voltage SELV or
Extra-low voltage PELV
HD 384
Operating frequency 50/60 Hz
Energy consumption Max. 24 VA (same for all types)
Internal fuse 5 A
Operating data Processor Motorola Power PC MPC885
Storage 64MB SDRAM / 32MB FLASH
(96MB total)
Accuracy class 0.5
Data backup in event of
power failure
Battery Backup of realtime clock
 Lithium Type CR2032 (optionally
BR2032) (field replaceable)
Battery operation (cumulative): 10 years
Without load: 10 years
Battery Backup of SDRAM 1x AA:
(field replaceable)
 Lithium Type FR6/AA:
Devices series B and later

Alkalin
e
: Devices series B
Battery operation (cumulative): min. 2 weeks
Without load: Lithium 10 years
Without load: Alkaline 4 years
Communication interfaces PXC....D PXC...-E.D
Building Level Network LONWORKS FTT Transceiver
(screw terminals (B))
10 Base-T / 100 Base-TX
IEEE802.3, Auto-sensing
(RJ45
(D)
)
Local communication
(HMI) (RJ45 (C))
 PXM20 (BACnet/LonTalk) *)
Connection cable max. 3 m
Local communication
(HMI, Tool) (RJ45 (E))
 PXM10 (serial)
 PXM20 (BACnet/LonTalk) *)
 FW Download Tool
Connection cable max. 3 m
Local communication
(HMI) (RJ45 (G))
 PXM10 (serial)
Connection cable max. 3 m
 PXM10 (serial)
Connection cable max. 3 m
USB host interface
(Modem)
 RS232 modem (via USB-RS232
adapter PXA-C3)
 RS232 modem (via USB-RS232
adapter PXA-C3)
USB device interface (for future applications) (for future applications)
Ethernet interface
Interface type 100BaseTX, IEEE 802.3 compatible
Bit rate 10 / 100 MBit/s, autosensing
Protocol BACnet on UDP/IP
Pin RJ45 socket, screened
LONWORKS bus interface
Network
TP/FT-10
Baud rate
78 kBit/s
Protocol
BACnet
Interface chip Echelon Processor TMPN3150B1AF
Island bus interface (CD, CS )
Protection
Short-circuit proof Short-circuit proof
*) only ONE PXM20 per automation station