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Installation Instructions

ManualsBrandsSiemens ManualsBuilding automationBACnet PXC Modular with 24 VDC Input Technical Specification Sheet
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Installation Instructions
Document No. A5W00125545
September 8, 2020
PXC Modular with 24 Vdc Input
Item No. A5W00125545_en_a
Siemens Industry, Inc. Page 1 of 4
Danger/Warning/Caution Notation
DANGER
Electric shock, death, or severe property
damage may occur if you do not perform
a procedure as specified.
WARNING
Personal injury or property damage may
occur if you do not follow a procedure as
specified.
CAUTION
Equipment damage or loss of data may
occur if you do not follow a procedure as
specified.
Product Description
The PXC Modular Controller with single 24 Vdc input
communicates with other field panels or workstations on a
peer-to-peer Automation Level Network (ALN) and
supports the following communication options:
● BACnet/IP over 10/100 MB Ethernet networks
● BACnet MS/TP ALN/FLN on RS-485 networks
PXC Modular DC Product Numbers
Product Number
PXC100-E96-DC.A PXC Modular Controller with 24 Vdc
Input, BACnet/IP ALN, MS/TP FLN,
self-forming TX-I/O Island Bus
TXS1.EF4
TX-I/O Bus Connection Module
(BCM) provides connection from a
24 Vdc power supply or redundancy
module to TX-I/O Module Bus &
Sensor Supply and DC Field Device
Distribution
TXA1.IBE TX-I/O Bus Expansion Module (IBE)
PXA-DIN16KIT Accessory kit with four 16-inch (406
mm) DIN rails
PXX-485.3 FLN Expansion Module
Electrical Ratings
PXC100-D96-DC.A
power consumption
24 Vdc @ 28.8 Watts (1.2A)
maximum
Ethernet
communication
100 m max., CAT-5 or better cable
(10 ohms)
RS-485 communication
PXC100 or PXX-485.3
1220 m over 24 AWG max. (96
ohms)
TXS1.EF4 24 Vdc
power distribution to
TX-I/O Modules and
TXM1.8X(-ML) DC
Sensors.
24 Vdc 38.4 Watts (1.6A internal
resettable PTC) maximum including
up to 200 mA per 8X module
TXS1.EF4 24 Vdc
power distribution for
Super Universal
TXM1.8X(-ML) field
bus to DC Actuators
24 Vdc up to 96 Watts (4A fused)
maximum is limited by total
available DC power refer to Figure
1.
TXA1.IBE
communicates on RS-
485 isolating bus power
in secondary panels
160 ft (50 m) max. over 24 AWG
from primary panel to furthest
secondary panel
General Installation Requirements
CAUTION
All devices not isolated by an Island Bus
Expansion module (TXA1.IBE) must be
connected to the same grounding point.
CAUTION
TX-I/O components require a system
neutral with single point earth ground. Do
not connect these components to a floating
system neutral.

Summary of content (4 pages)