BAS Integration Manual

ManualsBrandsTekmar ManualsThermostats & ControlsSnow Melting Control - Outdoor Temperature Reset - Speed Injection Mixing

Snow Melting Control 680

680

10/15

Replaces: 04/15

BAS Integration Manual

1 of 8

A Watts Water Technologies Company

Snow Melting

Introduction

Table of Contents

BACnet Protocol Implementation Conformance

Statement (PICS) ......................................................... 2

BACnet Connection ...................................................... 2

BACnet Analog Parameters .......................................... 3

BACnet Binary Parameters ........................................... 4

Modbus Specification ................................................... 5

Modbus Connection ...................................................... 5

Modbus Troubleshooting .............................................. 5

Modbus Parameters ..................................................6-7

Error Codes ..................................................................8

The Snow Melting Control 680 can communicate with a Building Automation System (BAS) using either BACnet

I P,

BACnet

MSTP or Modbus

MSTP.

This manual provides information about control parameters that can be accessed by building automation or management

systems that use BACnet or Modbus communication.

1 234

Injection

Mixing

Pmp

46 47

Snow Melting Control 680

BAS, Boiler & Mixing

37 38

Mod

Boiler

33 34

Stage 1Stage 2

35 36

BACnet IP

Signal wiring must be

rated at least 300 V

For product literature:

www.tekmarControls.com

Meets Class B: Canadian

ICES & FCC Part 15

tektra 1070-01

Designed and

assembled in Canada

H7021B

Input Power:

115 V (ac) ±10%, 60 Hz, 320 VA

Primary, System Pump Relays:

230 V (ac), 10 A, 1/2 hp

Boiler Stage Relays:

230 V (ac), 5 A

Injection Mixing Pump:

230 V (ac), 2.4 A

Boiler Pump Relay:

230 V (ac), 5 A, 1/3 hp

Floating Action Mixing Output:

230 V (ac), 5 A

BluBrn /

Slab

Blk /

Com

26 27 28

Red

Brn /

Slab

Blk /

Com

Yel

Red

Blu

Yel

Snow / Ice Sensor 1 Snow / Ice Sensor 2

Do Not Apply Power

41 42 43

Pwr

Floating

Action Mixing

ClsOpn

Boiler

39 40

Pump

29 30

Pump

Primary System

31 32

44 45

Power In

BACnet MSTP

Modbus MSTP

16 17 18

Gnd

RS-485

+–

20V

Out

0-10V /

4-20mA In Out

Flow

Sensor

Pressure

Sensor

Vdc

Gnd

Com

Boil

Sup

Out

Boil

Ret

ComCom

Sys

Sup

Sys

Ret

13 14 15

Analog

Mixing

Temperature Sensors

+––

Disconnect All Power

Before Opening

Use supply wires suitable for at least 105°C

Employer des ﬁls d’alimentation pour au moins 105°C

Do Not Apply Power

Summary of content (8 pages)

PAGE 1
BAS Integration Manual 680_B Snow Melting Control 680 10/15 Snow Melting Replaces: 04/15 Introduction The Snow Melting Control 680 can communicate with a Building Automation System (BAS) using either BACnet® IP, BACnet® MSTP or Modbus® MSTP. This manual provides information about control parameters that can be accessed by building automation or management systems that use BACnet or Modbus communication.
PAGE 2
BACnet Protocol Implementation Conformance Statement (PICS) Vendor Name: tekmar Control Systems Ltd. Vendor ID: 585 Product Name: Snow Melting Control 680 Product Model Number: 680 Application Software Version: J1243F Firmware Revision: J1243F Product Description: The 680 is a control that operates an automatic snow melting system.
PAGE 3
BACnet Analog Parameters Analog Input Object = AI Analog Value Object = AV Read = R Read/Write = R/W Object Name ID Analog Input Objects Data Read/ Type Write Units Range/Value 0 Operation AI R No Units (95) 1 Operation Status AI R No Units (95) 2 3 4 5 6 7 8 9 10 11 Melt Time Remaining Additional Melt Time Remaining Outdoor Air Temperature Slab 1 Temperature Slab 2 Temperature Coldest Slab Temperature Slab Target Temperature Boiler Supply Temperature Boiler Return Temperature Boiler Targ
PAGE 4
BACnet Binary Parameters Binary Input Object = BI Binary Value Object = BV Read = R Write = W Object ID Name Binary Input Objects Data Type Read / Write Units Range/Value 0 Slab 1 Water BI R No Units (95) 0 = Dry, 1 = Wet 1 Slab 2 Water BI R No Units (95) 0 = Dry, 1 = Wet 2 Combined Water Status BI R No Units (95) 0 = Dry, 1 = Wet 3 System Pump BI R No Units (95) 0 = Off, 1 = On 4 Primary Pump BI R No Units (95) 0 = Off, 1 = On 5 Boiler Pump BI R No Units (95) 0 =
PAGE 5
Modbus Specification Communication Protocol Modbus over RS-485 Physical Layer RS-485 two-wire plus signal ground Baud Rate 9600, 19200, 38400, 768000 (default: 9600 bps) Recommended Cable 18 AWG shielded, twisted pair (STP) Transmission Mode RTU or ASCII (default: RTU) Maximum Cable Length 76800 bps: 580 ft. (177 m) 57600 bps: 1,158 ft. (353 m) 19200, 9600 bps: 3,280 ft.
PAGE 6
Modbus Parameters Read = R Read/Write = R/W Register Parameter Name Read/ Write Units Type Format Range Input Registers (Starts at 40,000) 1 Model R Enum Input U16 680 2 Firmware Revision R Enum Input U16 SVN revision 3 Application Version R Enum Input U16 Software (A= 1, B = 2, ...
PAGE 7
Modbus Parameters Read = R Read/Write = R/W 33 Melting Hours (low word) R Hours Input U16 0 to 65535 34 Melting Hours (high word) R Hours Input U16 0 to 65535 35 Heat Cycles (low word) R Enum Input U16 0 to 65535 36 Heat Cycles (high word) R Enum Input U16 0 to 65535 37 System Pump Run Time (low word) R Hours Input U16 0 to 65535 38 System Pump Run Time (high word) R Hours Input U16 0 to 65535 39 Primary Pump Run Time (low word) R Hours Input U16 0 to 65535
PAGE 8
Error Codes (for BACnet and Modbus) Code Description Code Description 0 No error 18 Slab Sensor 1 Open Circuit Error 1 Setpoint Menu Memory Error 19 Slab Sensor 1 Short Circuit Error 2 Setup System Menu Memory Error 20 Snow Sensor 1 Yellow Wire Open Circuit Error 3 Setup Boiler Menu Memory Error 21 Snow Sensor 1 Blue Wire Open Circuit Error 4 Mixing Menu Memory Error 22 Snow Sensor 1 Blue Wire Short Circuit Error 5 BAS Menu Memory Error 23 Snow Sensor 1 Brown Wire Open Circuit Err