Download presentation
Presentation is loading. Please wait.
1
CARRIER COMFORT NETWORK BUS ARCHITECTURE
6/28/98 CCN_BUS
2
Carrier Comfort Network
Carrier Comfort Network (CCN) is a controls concept that consist of Carrier control products and Carrier equipment that are stand alone as well as designed to function together on a Digital Control System. 6/28/98 CCN_BUS
3
CCN BUS ARCHITECTURE Terms Description
CCN Carrier Comfort Network - Carrier protocol communication system CCS Carrier Comfort Systems - Family of communicating Stat’s (Temp for single zone and VVT for multi zone) FID Field Installed Device - General purpose field programable controller. 1600/6400 Carrier Comfort Controllers (new style FID’s) PIC Product Installed Controls - Factory installed and programed equipment specific controllers. CIO Communications Input / Output Devices Repeater Used to clean and amplify the CCN sign or as a protocol converter from RS 485 to RS 232 bus signals. Bridge Used to build a secondary bus system. 6/28/98 CCN_BUS
4
CCN BUS ARCHITECTURE Terms Description Temp A single zone stat.
Temp(T) A single zone stat with an internal clock. MS VVT Monitor Stat with out an internal clock for multi zone applications. MS(T) VVT Monitor Stat with an internal clock for multi zone applications. BC VVT Bypass Control device for pressure control in multi zone applications. ZC VVT Zone Control device for zone control in multi zone applications. NAM Network Access Module for incoming remote communications 6/28/98 CCN_BUS
5
CCN BUS ARCHITECTURE CCN PRIMARY BUS Comfort Controllers TEMP VVT PIC
(3 Conductor Shielded stranded wire cable 18 ga.) Comfort Controllers Or FID’s (CCN) TEMP (CCS) VVT (CCS) PIC (CCN) CIO (CCN) For General CCN Type Devices: Theoretical Maximum of 239 Devices on any bus. For CCS type Devices: A Maximum of 32 33CS Devices or 8 Scanning Devices (Monitor Stat’s) on any bus. This is a Local Area Network (LAN) not a Wide Area Network (WAN) 6/28/98 CCN_BUS
6
CCN BUS ARCHITECTURE PIC’s
Product Integrated Control Is Factory Mounted On Carrier HVAC Equipment With Sensors VAV Air Terminals Air Handling Units Chillers Rooftop Units 6/28/98 CCN_BUS
7
PIC Architecture CCN Primary Bus Power - 20 V ac SIO Bus P R
O C E S S O R Local Interface Device 12 I n 6 o u t Power - 20 V ac CCN Primary Bus 8 or 16 P O I N T S I/O 6/28/98 CCN_BUS
8
CCN BUS ARCHITECTURE FID ’s
Field Installed Device Is An All Purpose Controller For Carrier Equipment without PIC’s & Non- Carrier HVAC Equipment In Addition Controls Cooling Towers Pumps Lights Boilers 6/28/98 CCN_BUS
9
203 FID Architecture CCN Primary Bus Power #2 - 20 V ac SIO Bus
O C E S S O R 8 I N P U T S 8 O U T P U T S Owners Module 6/28/98 CCN_BUS
10
6400 Comfort Controller Architecture
CCN Primary Bus Power - 24 V ac SIO Bus P R O C E S S O R 16 P O I N T S I/O 16 P O I N T S I/O 16 P O I N T S I/O Local Interface Device 6/28/98 CCN_BUS
11
CIO ’s ARCHITECTURE Communications Input / Output
For System Level Control Strategies Chiller Plant Control VAV Air Systems Control Loadshed Watersource Heatpump Systems PTAC System Management 6/28/98 CCN_BUS
12
CIO Module Architecture
CCN Primary Bus Power V ac C I O M o d u l e Some CIO’s: Data Collection Tent Billing Auto Dial Gateway Chiller Visor Alarm Printer Interace Loadshed Module Flotronic System Manager No Input or Outputs All System Level Controls Thru Communications. 6/28/98 CCN_BUS
13
CCN BUS ARCHITECTURE The Key to the CCN BUS is Addressing:
An address is required of all devices on the bus. No two devices on the same CCN system may ever have the same address. A CCN and CCS address consists of a 3 digit bus number and a 3 digit device number. 6/28/98 CCN_BUS
14
CCN BUS ARCHITECTURE CCN BUS is Addressing:
Example Address: ( 024 , 127) Bus Number Device Number Legal bus numbers are 0 to 239 inclusive The primary bus number is always “0” Secondary bus numbers are 1 to 239 inclusive. Legal device numbers are 1 to 239 inclusive. A repeater module and NAM configured to work with a computer are not addressed. 6/28/98 CCN_BUS
15
CCN BUS TEMP SIMPLE TEMP BUS TEMP(T) BUS NUMBER ELEMENT NUMBER Addressing TEMP Devices Addressing TEMP Devices For a simple and multiple TEMP system, the only addressing rule is to never duplicate addresses. For a simple TEMP and multiple TEMP system, bus communication is at a minimum, and therefore usually a single bus is sufficient. 6/28/98 CCN_BUS
16
Zone controllers must be addressed below the bypass controller.
CCN BUS Addressing VVT Devices ZC SIMPLE VVT BUS BC MS(T) BUS NUMBER ELEMENT NUMBER For a simple and multiple VVT system, the only addressing rule is to never duplicate addresses. The bypass controller MUST be addresses one less than the monitor stat. Zone controllers must be addressed below the bypass controller. 6/28/98 CCN_BUS
17
CCN BUS ARCHITECTURE USE OF REPEATERS Repeater MS(T) BC ZC ZC MS BS ZC ZC 60 DEVICES or 1,000 Feet 60 DEVICES or 1,000 Feet Repeater Repeater TEMP TEMP PIC CIO 6400 TEMP TEMP TEMP 59 DEVICES or 1,000 Feet 60 DEVICES or 1,000 Feet Use a repeater every 60 devices (Signal strength degradation) Use a repeater every 1,000 feet (Reflective degradation) 6/28/98 CCN_BUS
18
CCN BUS ARCHITECTURE USE OF A REPEATER TO CONVERT RS-485 TO RS-232 RS-485 RS-485 Repeater Repeater MS(T) BC ZC MS BS ZC ZC Repeater Module used to Convert RS-232 Runs: Comfortworks, Building Supervisor IV Or Network Service Tool IV IBM Compatible Computer Repeater Repeater Module used to Amplify RS-485 RS-485 Repeater TEMP TEMP PIC CIO 6400 TEMP TEMP TEMP A Repeater can be used to convert the signal for a computer or A Repeater can be used to amplify the signal 6/28/98 CCN_BUS
19
CCN BUS ARCHITECTURE USE OF NETWORK ACCESS MODULE (NAM) RS-485 RS-485 Repeater NAM MS(T) BC ZC MS BS ZC ZC RS-232 Runs:Comfortworks, Building Supervisor IV Or Network Service Tool IV IBM Compatible Computer OR Repeater RS-232 US Robotics Modem Note: A NAM can receive incoming calls, but can not originate a call. RS-485 RS-485 Repeater TEMP TEMP PIC CIO 6400 TEMP TEMP TEMP Use a NAM to convert the signal for a personal computer or Use a NAM to convert the signal for a Hayes compatible modem 6/28/98 CCN_BUS
20
CCN BUS ARCHITECTURE USE OF BRIDGES PRIMARY BUS BRIDGE BRIDGE PIC CIO 6400 TEMP TEMP TEMP TEMP SECONDARY BUS SECONDARY BUS MS(T) BC ZC ZC MS BC ZC ZC A secondary bus may only be created from the primary bus. A CCN may be expanded to have up to 239 secondary buses. 6/28/98 CCN_BUS
21
CCN BUS ARCHITECTURE USE OF BRIDGES Repeater PIC CIO 6400 ADGW TEMP
PRIMARY BUS BUS SEGMENT (60/1000’) BUS SEGMENT (60/1000’) Repeater BRIDGE PIC CIO 6400 ADGW TEMP TEMP TEMP SECONDARY BUS BUS SEGMENT (60/1000’) BUS SEGMENT (60/1000’) Repeater 6400 PIC CIO 6400 TEMP TEMP TEMP TEMP Repeater BUS SEGMENT (59/1000’) BUS SEGMENT (60/1000’) Repeater PIC PIC CIO 6400 TEMP TEMP TEMP TEMP 6/28/98 CCN_BUS
22
CCN BUS USE OF TSM AS A BRIDGE TEMP 6400 CIO PIC TSM Repeater ASI TCU
PRIMARY BUS SECONDARY BUS BUS SEGMENT (60/1000’) Repeater ASI TCU BUS SEGMENT (59/1000’) ADGW 6/28/98 CCN_BUS
23
CCN BUS ARCHITECTURE
24
CCN BUS ARCHITECTURE 6/28/98 CCN_BUS
25
Communications Point To Point
CCN BUS ARCHITECTURE Communications Point To Point Repeater MS(T) BC ZC ZC MS BS ZC ZC Repeater Communication Repeater TEMP TEMP PIC CIO 6400 TEMP TEMP TEMP Communication Packet Address of Receiver Address of Sender Communication Message CRC (BIT Check Acknowledge 6/28/98 CCN_BUS
26
Communications Broadcast
CCN BUS ARCHITECTURE Communications Broadcast Repeater MS(T) BC ZC ZC MS BS ZC ZC Broadcast Repeater Repeater TEMP TEMP PIC CIO 6400 TEMP TEMP TEMP Communication Packet Special Address Code Meaning This package is to be received by All Nodes on the Network Address of Sender Communication Message CRC (BIT Check Broadcast Acknowledgement 6/28/98 CCN_BUS
27
Broadcast Communications Rules
CCN BUS ARCHITECTURE Broadcast Communications Rules Many CCN devices may broadcast information over the network such as time of day or point values like outdoor air temperature, or relative humidity. Broadcast information is sent (or made available) to all Network Devices. Every BUS should have one device configures as a the “Broadcast Acknowledger” The Broadcast Acknowledger acts as a spokes person for the entire Bus by acknowledging back to the sender that a successful broadcast was received. Time broadcastor’s send their internal clock time and holiday status twice a day at 1:00 AM and 1:00 PM, as well as when requested to send time by another Network Device. 6/28/98 CCN_BUS
28
CCN BUS ARCHITECTURE USE OF BRIDGES PRIMARY BUS BRIDGE BRIDGE PIC CIO 6400 TEMP TEMP TEMP TEMP SECONDARY BUS SECONDARY BUS MS(T) BC ZC ZC MS BC ZC ZC A secondary bus may only be created from the primary bus. A CCN may be expanded to have up to 238 secondary buses. 6/28/98 CCN_BUS
Similar presentations
