Operating Instructions
Table Of Contents
- Cyber security disclaimer
- How to Use This Manual
- Chapter 1—Introduction
- Chapter 2—Hardware Features
- 16- and 24-Point Compact Series Diagram
- 36-Point Compact Series Product Diagram
- Supported Point Types
- Compact Series Backup Batteries
- Memory
- Communication Connections
- Compact Series Specifications
- BACnet Compact Series Specifications
- Compact Series Smoke Control Application Requirements
- HOA (Hand-Off-Auto) Upgrade Kits
- PXC Compact on P1
- PXM10S/T Product Overview and Description
- Unitary Equipment Controller
- TX-I/O Product Range Overview
- PX Series Enclosures and Service Boxes
- Chapter 3—Applications
- Chapter 4—Troubleshooting
- Glossary
- Index
Chapter 2—Hardware Features
BACnet Compact Series Specifications
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Siemens Industry, Inc.
Owner's Manual
553-104
Building Technologies
2018-10-01
Processor, Battery, and Memory
Processor and Clock Speed PXC-16 and PXC-24: Freescale MPC852T, 100 MHz
PXC-36: Freescale MPC885, 133 MHz
Memory PXC-16 and PXC-24: 24 MB (16 MB SDRAM, 8 MB Flash ROM)
PXC-16/24 “F” and “F32”: 40 MB (32 MB SDRAM, 8 MB Flash ROM)
PXC-36: 80 MB (64 MB SDRAM, 16 MB Flash ROM)
NOTE:
See the Configuration and Sizing Guidelines document for supported memory size.
New PXC models will now support high speed 480 Mbps communication (PXC-36 only).
Battery backup of Synchronous Dynamic
(SD) RAM (field replaceable)
PXC-16 and PXC-24 Non-rooftop Models:
180 days (accumulated)
AA (LR6) 1.5 Volt Alkaline (non-rechargeable)
PXC-36
:
60 days (accumulated)
AA (LR6) 1.5 Volt Alkaline (non-rechargeable)
Rooftop (Extended Temperature) Models:
330 days (accumulated)
AA (LR6) 3.6 Volt Lithium (non-rechargeable)
Battery backup of Real Time Clock
Non-rooftop Models:
10 years
Coin cell (BR2032) 3 Volt lithium
Rooftop (Extended Temperature) Models:
18 months
Coin cell (BR2032) 3 Volt lithium
Communication
A/D Resolution (analog in) 16 bits
D/A Resolution (analog out) 10 bits
BACnet/IP Automation Level Network (ALN) 10Base-T or 100Base-TX compliant
BACnet MS/TP Automation Level Network (ALN) RS-485, 9600 bps to 115.2 Kbps
BACnet MS/TP Field Level Network (FLN)
on selected models, license required
RS-485, 9600 bps to 76.8 Kbps
Human-Machine Interface (HMI) Advanced
User Mode
RS-232 compliant, 1200 bps to 115.2 Kbps
USB Device port (for non-smoke control
applications only)
Prior to June 2013
USB 1.1 (12 Mbps) and 2.0 (480 Mbps), Type B female connector.
Self-powered, does not use or supply USB power.
USB 1.0 (1.5 Mbps) and 1.1 (12 Mbps).
USB Host port
on selected models
(for
ancillary smoke control applications only).
Prior to June 2013
USB 1.0 (1.5 Mbps), 1.1 (12 Mbps), and 2.0 (480Mbps), Type A female connector.
USB unit loads (5V, 500 mA).
USB 1.0 (1.5 Mbps) and 1.1 (12 Mbps), Type A female connector.
Electrical
Power Requirements 24 Vac ±20% input @ 50/60 Hz
Power Consumption (Maximum) PXC-16: 18 VA @ 24 Vac
PXC-24: 20 VA @ 24 Vac
PXC-36: 35 VA 24 Vac
AC Power and Digital Outputs NEC Class 1 Power Limited
Communication and all other I/O NEC Class 2