Raypak T-3 Modbus Interface, Sample Specification, Interface Board, Read/Write Attributes

T-3 Modbus Interface

Interface Board

Certified Modbus Compatibility ProSoft Series 1500 Translator RS-485 to N2 Gateway Transfer Rate: 9600 Baud

Read/Write Attributes

Analog/Binary

Total B6000 BMS Program Access

Data Integrity Protocol

Summation/Modulus Error Checking

Auto Command Error Feedback

LED Diagnostic Indicators

Port 1 Active − Green

Port 2 Active − Green

Port 1 Error − Red

Port 2 Error − Red

Electrical Characteristics

120 VAC, 0.25A, 60 Hz

Ambient Conditions

Temperature: -40 to 175° F

Humidity: 90% RH Non-condensing

Enclosure

Heavy Gauge Steel Lockable Access Door Tamper Resistant Design 15 3/16L x 8 W x 4 3/4D Boiler or Remote Mounted

Limited One Year Warranty

U® L

Sample Specification

Section I: General Requirements

1.Provide a Raypak T-3 Modbus Interface that shall facilitate low level data translation between the Raypak B6000 Boiler Management System and Modbus compatible Building Management Systems.

2.The interface shall be microprocessor based.

3.The interface shall be UL Listed.

4.The interface shall carry a one year limited warranty against failure caused by defective workmanship or material.

5.The interface and boiler control system shall be manufactured by the same company and shall carry single source responsibility.

Section II: Equipment Enclosure

1.The interface enclosure shall be constructed of heavy gauge steel and shall be protected with a baked-on UV inhibited Polytuff powdercoat finish.

2.The front access door of the interface enclosure shall be lockable and the enclosure shall be tamper resistant.

Section III: Control Functions

1.The interface shall provide seamless communications integration between the Raypak B6000 RS-485 and Modbus communications protocols.

2.The interface shall utilize summation/modulus error checking and auto command error feedback to ensure data integrity.

3.The interface shall allow analog and binary multi-level read/write Modbus capabilities for the following B6000 functions:

a)Reset parameters including: Setpoint, Reset Ratio, Temperature Rise and Control Band.

b)Outdoor cutoff parameters including: Outdoor Cutoff Temperature and Outdoor Cutoff Deadband.

c)Secondary operating parameters including: Firing Step Increment, Pump Turn-Off Delay and Ignition Lockout Time.

d)Setback parameters including: Setback Period Scheduling and Setback Activation.

e)Lead-lag parameters including: Lead Boiler Assignment and Time Rotation Interval.

Section IV: Display Functions

1.The interface shall have port active and error diagnostic lights for both interface ports.

2.The interface shall allow analog and binary multi-level read-only Modbus capabilities for the following B6000 functions:

a)Current temperatures including: Water Temperature, Outdoor Air Temperature, and Target Temperature.

b)Boiler operating status including: Valve Position, and Current Firing Rate.

c)Fault indication including: Low Water, Low Gas Pressure, High Gas Pressure, High Temp, Low Water Pressure, Low Flow, No Pilot and Manual Override Status.

d)Secondary operating parameters including: Time Remaining Till Lead Boiler Rotation and Valve Operating Times.

Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 FAX (800) 872-9725 www.raypak.com

Litho in U.S.A.