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C(F,H,P)X-MODB_100160882_2000001229_Rev E
Copper-fin II/IIE
Boiler, Water Heater
and Pool Heater
ModBus and BACnet
Communication
Instructions
Models: 402 - 2072
(Boiler & Water Heater)
Models: 502 - 2072
(Pool Heater)
WARNING
Save this manual for future reference.
Th is manual must only be used
by a qualifi ed heating installer /
service
technician.
Read
instructions, including this manual,
the Installation and Operation
Manual, and the Service Manual,
before installing. Perform steps in
the order given. Failure to comply
could result in severe personal
injury, death, or substantial property
damage.
all
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Table of Contents
Related Manuals for Lochinvar 402
Summary of Contents for Lochinvar 402
- Page 1 Copper-fin II/IIE Boiler, Water Heater and Pool Heater ModBus and BACnet Communication Instructions Models: 402 - 2072 (Boiler & Water Heater) Models: 502 - 2072 (Pool Heater) Th is manual must only be used WARNING by a qualifi ed heating installer / service technician.
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Page 2: Table Of Contents
RS-485 serial connection. BACnet networks are implemented using a token passing process where multiple masters and slaves share a common RS-485 bus. Th e Lochinvar BACnet interface is a master only. -
Page 3: Modbus Configuration
Copper-fi n II/IIE ModBus and BACnet Manual ModBus Confi guration Th e ModBus communication board is equipped with a set of ten dip switches that are used to set the board confi guration (address, baud rate, and parity settings). Th e fi rst eight are used to set the address of each board. Th e ninth is baud rate. Th e tenth is parity. -
Page 4: Timing Specifi Cations
RTU has been chosen to be used 0 = 9600 bps with all Lochinvar ModBus communication. Please ensure that Each message is started by at least 3.5 character times of the master device is transmitting ModBus RTU. -
Page 5: Modbus Function Set
Copper-fi n II/IIE ModBus and BACnet Manual ModBus Confi guration (continued) ModBus Function Set Function Sub Function Description Read Coil Status Read Input Status Read Holding Registers Read Input Registers Force Single Coil Preset Single Register Read Exception Status Diagnostic - Return Query Data Diagnostic - Restart Communication Diagnostic - Return Diagnostic Register Diagnostic - Force Listen Mode... -
Page 6: Modbus Exception Codes
Copper-fi n II/IIE ModBus and BACnet Manual ModBus Confi guration ModBus Exception Codes ModBus Exception Codes Code Name Meaning The function code received in the query is not an allowable action for the server (or slave). This may be because the function code is only applicable to newer ILLEGAL FUNCTION devices, and was not implemented in the unit selected. -
Page 7: Modbus Memory Map Primary Data Tables
Copper-fi n II/IIE ModBus and BACnet Manual ModBus Memory Map Primary Data Tables Table Data Type Read / Write Discrete Inputs Single Bit Read Only Coils Single Bit Read / Write Input Registers 16-Bit Word Read Only Holding Registers 16 Bit Word Read / Write Copper-fi... - Page 8 Copper-fi n II/IIE ModBus and BACnet Manual ModBus Memory Map Copper-fi n II/IIE Memory Map Calculation Address Description Default Unit Min. Max. Resolution Factor 10046 Gas Valve 2 1=ON / 0=OFF 10047 Gas Valve 3 1=ON / 0=OFF 10048 Gas Valve 4 1=ON / 0=OFF Input Registers 30001...
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Page 9: Bacnet Configuration
Copper-fi n II/IIE ModBus and BACnet Manual BACnet Confi guration Th e BACnet communication board is equipped with a set of ten dip switches that are used to set the board confi guration (address and baud rate). Th e fi rst eight are used to set the address of each board. Th e ninth and tenth are baud rate. Figure 4-1_Communication Board DIP SWITCHES LED’S... -
Page 10: Timing Specifi Cations
Copper-fi n II/IIE ModBus and BACnet Manual BACnet Confi guration Timing Specifi cations Communication Board Diagnostics Th e Communication board is equipped with three LED’s for Th e baud rate for the BACnet board is selectable with Dip visual diagnostics: Two yellow LED’s and one green. One switches #9 and #10. -
Page 11: Bacnet Memory Map Primary Data Tables
Copper-fi n II/IIE ModBus and BACnet Manual BACnet Memory Map Primary Data Tables Object Type Data Type Read / Write Binary Input (BI) Single Bit Read Only Binary Value (BV) Single Bit Read / Write Analog Input (AI) 16-Bit Word Read Only Analog Value (AV) 16 Bit Word... -
Page 12: Input Registers
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements BACnet Memory Map (continued) Memory Map (continued) Object Object Object Name Units Resolution Type Instance Analog Inputs Binary Inputs 0 - 15 none 65535 Binary Inputs 16 - 31 none 65535 Discrete Inputs 32 - 47 none 65535... -
Page 13: Modbus Mounting/Wiring Instructions
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements Mounting/Wiring Instructions Turn OFF power at the source. Figure 6-1_Mounting the Communication Board Remove the left and right access panels to access the inside of the unit. INSTALLATION: LOCATE BRACKET ON DV PANEL AND SECURE WITH Mount the communication board as shown in SELF DRILLING SCREWS. -
Page 14: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements Figure 6-2_Schematic / Wire Connections CASCADE MODBUS... -
Page 15: Physical Wiring
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements (continued) Note that when the System Supply Temperature and/or the Tank Temperature are provided by the BAS, they need to be refreshed every few seconds. Th is is required in order to prevent unwanted fl uctuations in these temperatures. If these values are not provided every few seconds (timeout is programmable), the boiler will revert to its own internal control. -
Page 16: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements Figure 6-4_Control Inputs OUTDOOR SENSOR (OPTIONAL) SYSTEM SUPPLY/ ENABLE SENSOR (OPTIONAL) SENSOR SYSTEM RETURN/ CONNECTION POOL SENSOR BOARD (OPTIONAL ON BOILER) (BOILER AND VOLTAGE (STD ON POOL HEATER) POOL HEATER CONNECTION ONLY) BOARD SYSTEM PUMP SPEED... -
Page 17: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements (continued) Figure 6-5_Control Outputs MODBUS COMMUNICATION VOLTAGE BOARD CONNECTION 0-10V BOARD (OPTIONAL) RATE CASCADE THREE WAY VALVE (OPTIONAL ON BOILER) (STD ON POOL HEATER) LOUVER RELAY BUILDING MANAGEMENT SYSTEM RUN TIME CONTACTS ALARM CONTACTS SMART SYSTEM... -
Page 18: Typical Boiler System Wiring
COMMUNICATION BOARD CONNECTION CONNECTION BOARD BOARD Models 402 - 752 Models 992 - 2072 Typical Boiler System Wiring Physical Configuration: Cascade without Individual Monitoring BACnet or ModBus RS485 Port on Gateway or Building System BACnet or ModBus RS485 Communication Bus... -
Page 19: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Wiring Requirements (continued) Physical Configuration: Cascade with individual Monitoring BACnet or ModBus RS485 Port on Gateway or Building System BACnet or ModBus RS485 Communication Bus Cascade Daisy Chain Connection Physical Configuration: Direct Control BACnet or ModBus RS485 Port on Building System BACnet or ModBus RS485 Communication Bus... -
Page 20: Unit Operation
ModBus. Th ese values need to be updated on a regular basis to prevent unwanted temperature variations. Th is timer is programmable from 1 to 255 seconds. It is Lochinvar’s recommendation that this timer be set as short as possible. Th is timeout can be adjusted by accessing parameter H7 ModBus Time. -
Page 21: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Unit Operation (continued) Control Mode 3 In this confi guration, the heater receives its enable signal and a rate command through ModBus or BACnet. All sensors and limiting devices should be connected directly to the terminal strip(s) inside the Copper-fi n II/IIE control compartment. Control Mode 3 - Setup (Confi... -
Page 22: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Unit Operation Control Mode 5 In this confi guration, the heater receives its enable and its rate or set point using the 0-10V input through ModBus or BACnet. All sensors and limiting devices should be connected directly to the terminal strip(s) inside the Copper-fi n II/IIE control compartment. - Page 23 Copper-fi n II/IIE ModBus and BACnet Manual Unit Operation (continued) Cascade DEFAULT DEFAULT In order to operate the Copper-fi n II/IIE in Cascade with VALUES PARAMETER ModBus or BACnet communications, confi gure the leader Deg C Deg F Voltages boiler per the demand confi gurations in this manual. Connect the remaining boilers in the cascade through the normal BMS temperature set point at 69.8...
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Page 24: Troubleshooting
Copper-fi n II/IIE ModBus and BACnet Manual Troubleshooting Should you encounter problems communicating over Status Codes (Input Registers 30014 and 30023) ModBus, the following items should be checked in this order: 2 = Heat Demand blocked due to high absolute outlet Physical Layer temperature Communications Confi guration and Port Settings... - Page 25 Remove the MTR01 control board (see FIG. 8-2). 161 = EEPROM code Parameters not Re-Programmed by Lochinvar Replace / install the new MTR01 control board. 164 = EEPROM code No Reset Allowed (> 15 minutes) Replace the four (4) mounting nuts removed in Step 4.
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Page 26: Diagrams
Copper-fi n II/IIE ModBus and BACnet Manual Diagrams Figure 9-1 Ladder Diagram WHERE POSSIBLE, SWITCHES ARE SHOWN WITHOUT UTILITIES (GAS, WATER OR ELECTRICITY) CONNECTED TO THE UNIT. AS SUCH, ACTUAL SWITCH STATES MAY VARY FROM THOSE SHOWN ON DIAGRAMS DEPENDING UPON WHETHER UTILITIES ARE CONNECTED OR A FAULT CONDITION IS PRESENT. -
Page 27: Ladder Diagram
Copper-fi n II/IIE ModBus and BACnet Manual Diagrams (continued) Figure 9-1 Ladder Diagram cont’d LBL20083 REV B... -
Page 28: Connection Diagram
Copper-fi n II/IIE ModBus and BACnet Manual Diagrams Figure 9-2 Connection Diagram FIELD WIRING OPT. ALARM HARNESS LOW VOLT HARNES ALARM TO MONITORING DEVICE CONTACTS DIGITAL HARNESS RUNTIME TO MONITORING DEVICE CONTACTS OPEN OPEN 3-WAY CLOSE CLOSE VALVE COMMON STAGE #1 BR/W BK/W CONNECT... -
Page 29: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Diagrams (continued) Figure 9-2 Connection Diagram cont’d W VOLT HARNESS Notes: 1. All wiring must be installed in accordance with : local, state , provincial and national code requirements per either GITAL HARNESS N.E.C. -
Page 30: Bacnet
Copper-fi n II/IIE ModBus and BACnet Manual Notes... - Page 31 Copper-fi n II/IIE ModBus and BACnet Manual Notes...
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Page 32: Revision Notes
Revision Notes: Revision A (ECO #C08638) initial release. Revision B (ECO C11616) refl ects the addition of the lockout code notice on page 21 (R05772). Revision C (PCP# 3000002377 / CN# 500002607) refl ects the addition of BACnet information and images, edits made to wording of Timing Specifi...