Siemens PXC Compact Series User Manual

Hardware Features
PXC Compact on P1
54
| 100
Siemens Industry, Inc.
Technical Reference Manual
145-172
Building Technologies
Restricted
2018-09-25
Example
The following example illustrates using this same logic in a PPCL subroutine (GOSUB)
if several LPACI points should be calculated at once.
100 GOSUB 200 (“P1PXC1:LPACI”, “TEMP1”, “VIRTCNT1”, “VLPACI1”,
“GAIN1”)
110 GOSUB 200 (“P1PXC2:LPACI”, “TEMP2”, “VIRTCNT2”, “VLPACI2”,
“GAIN2”)
120 GOSUB 200 (“P1PXC3:LPACI”, “TEMP3”, “VIRTCNT3”, “VLPACI3”,
“GAIN3”)
130 GOTO 240
200 IF ($ARG1.EQ. 0) THEN $ARG2 = $ARG2 + 1 ELSE $ARG2 = 0
210 IF ($ARG2 .EQ. 1.0) THEN $ARG3 = $ARG3 + 1
220 $ARG4 = (($ARG3 * 65536.0) * $ARG5) + $ARG1
230 RETURN
240 GOTO 100
Real Time Applications in a PXC Compact on P1
The PXC Compact does not access system time directly when connected over the
FLN. Real Time applications operating in the PXC Compact on P1, such as Scheduler,
SSTO, TOD, TIME, CRTIME, DAY, or DAYOFM, depend on valid time-date. Trend
data depends on valid time-date as well as RAM backup.
Appropriate control points for the host field panel should be created as addressed
virtual LDO or LAO points. They will be added to the point team by the P2/P1 App
Convert Tool.
Resetting System Time in a PXC Compact on P1
Additional PPCL must be included in the PXC Compact on P1 and its host field panel
to ensure time-date remains valid.
See Compact Series Backup Batteries [➙ 23]
for detailed battery operation and how to
access in the PXC Compact.
NOTE:
If needed, access the Real Time Clock (RTC) oscillator status from the host field
panel by using the unbundled point team
[name]
:BATT2
.
NOTE:
If needed, access the AA battery status (RAM backup battery) from the host field
panel by using the unbundled point team
[name]
:BATT
.

Siemens PXC Compact Series Specifications

General

Brand	Siemens
Model	PXC Compact Series
Category	Control Unit
Language	English

Summary

Product Overview

PXC Compact Series Overview

General introduction to the PXC Compact Series controllers and their capabilities.

APOGEE Automation System Compatibility

Details on integration with APOGEE automation systems and field panels.

Protocol Compatibility

Information on BACnet/IP, Ethernet TCP/IP (P2), and RS-485 protocol support.

Supported Point Types

Configuration options for analog and digital I/O points for PXC models.

System Diagrams

Visual layout and terminal block connections for 16/24 and 36-point PXC Compact models.

Hardware Features and Specifications

General Hardware Features

Overview of PXC Compact hardware components, connectors, and features.

Power and Sensor Connections

Details on 24 Vdc external sensor power source and shield termination.

Memory and Backup Systems

Information on Flash ROM, RAM, and essential battery backup systems.

Backup Batteries (AA & Coin Cell)

Management, replacement, and troubleshooting of AA and coin cell backup batteries.

Processor, Memory, and Communication Specs

Technical specifications for processor, memory size, and communication interfaces.

Electrical and Environmental Specifications

Details on power requirements, I/O capabilities, and operating conditions.

Communication Ports and Connections

Information on HMI, Ethernet, RS-485, USB ports, and TX-I/O Island Bus.

FLN and P1 Mode Operation

Details on Field Level Network (FLN) support and P1 mode functionality.

HOA and Upgrade Kits

Features and installation of Hand-Off-Auto (HOA) switches and upgrade kits.

Advanced Features and Modules

PXC Compact on P1 Mode

Configuration and operation of PXC Compact controllers in P1 mode.

PXM10S/T Operator Display Modules

Overview, features, and operation of PXM10S/T operator display modules.

Unitary Equipment Controller (UEC)

Introduction to the UEC controller and its FLN/ALN node operating modes.

Service and Troubleshooting

General Service Information

Guidelines for performing maintenance, troubleshooting, and corrective measures.

LED Status and Basic Troubleshooting

Interpreting RUN, BATT LOW, TX/RX LED indicators and initial checks.

Communication and Display Issues

Troubleshooting network communication failures and display problems.

TX-I/O Island Bus Troubleshooting

Diagnosing errors, module failures, and communication issues on the TX-I/O bus.

Module Replacement Procedures

Steps for replacing TX-I/O plug-in modules and complete module assemblies.