B&B Electronics DTB Series user manual RS-485 Communication, Hysteresis setting value of the 2nd

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RS-485 Communication

1.Supporting transmission speed: 2400, 4800, 9600, 19200, 38400bps

2.Non-supported formats: 7, N, 1 or 8, O, 2 or 8, E, 2

3.Communication protocol: Modbus (ASCII or RTU)

4.Function code: 03H to read the contents of register (Max. 8 words). 06H to write 1 (one) word into register. 02H to read the bits data (Max. 16 bits). 05H to write 1 (one) bit into register.

5.Address and Content of Data Register:

Address

Content

Explanation

 

 

Measuring unit is 0.1, updated one time in 0.4 second

 

 

The following reading value display indicates error occurs:

1000H

Process value (PV)

8002H : Initial process (Temperature value is not got yet)

8003H : Temperature sensor is not connected

 

 

8004H : Temperature sensor input error

 

 

8006H : Cannot get temperature value, ADC input error

 

 

8007H : Memory read/write error

1001H

Set point (SV)

Unit is 0.1, oC or oF

1002H

Upper-limit of temperature range

The data content should not be higher than the temperature range

1003H

Lower-limit of temperature range

The data content should not be lower than the temperature range

1004H

Input temperature sensor type

Please refer to the contents of the “Temperature Sensor Type and Temperature Range” for detail

1005H

Control method

0: PID, 1: ON/OFF, 2: manual tuning, 3: PID grogram control

1006H

Heating/Cooling control selection

0: Heating, 1: Cooling, 2: Heating/Cooling, 3: Cooling/Heating

1007H

1st group of Heating/Cooling control

0~99, 0:0.5 sec

 

cycle

0~99, 0:0.5 sec

1008H

2nd group of Heating/Cooling control

 

cycle

0.1 ~ 999.9

1009H

PB Proportional band

100AH

Ti Integral time

0~9999

100BH

Td Derivative time

0~9999

100CH

Integration default

0~100%, unit is 0.1%

100DH

Proportional control offset error value,

0~100%, unit is 0.1%

 

when Ti = 0

0.01 ~ 99.99

100EH

The setting of COEF when Dual Loop

 

output control are used

-999 ~ 9999

100FH

The setting of Dead band when Dual

 

Loop output control are used

0 ~ 9999

1010H

Hysteresis setting value of the 1st

 

output group

0 ~ 9999

1011H

Hysteresis setting value of the 2nd

 

output group

Unit is 0.1%, write operation is valid under manual tuning mode only.

1012H

Output value read and write of Output

 

1

Unit is 0.1%, write operation is valid under manual tuning mode only.

1013H

Output value read and write of Output

 

2

1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output)

1014H

Upper-limit regulation of analog linear

 

output

1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output)

1015H

Lower-limit regulation of analog linear

 

output

-999~+999, unit: 0.1

1016H

Temperature regulation value

1017H

Analog decimal setting

0 ~ 3

1018H

Time for valve from full open to full

0.1~999.9

 

close

0~100%; unit: 0.1%

1019H

Dead Band setting of valve

101AH

Upper-limit of feedback signal set by

0~1024

 

valve

0~1024

101BH

Lower-limit of feedback signal set by

 

valve

0~4

101CH

PID parameter selection

101DH

SV value corresponded to PID value

Only valid within available range, unit: 0.1 scale

1020H

Alarm 1 type

Please refer to the contents of the “Alarm Outputs” for detail

1021H

Alarm 2 type

Please refer to the contents of the “Alarm Outputs” for detail

1022H

Alarm 3 type

Please refer to the contents of the “Alarm Outputs” for detail

1023H

System alarm setting

0 : None (default), 1~3 : Set Alarm 1 to Alarm 3

1024H

Upper-limit alarm 1

Please refer to the contents of the “Alarm Outputs” for detail

1025H

Lower-limit alarm 1

Please refer to the contents of the “Alarm Outputs” for detail

1026H

Upper-limit alarm 2

Please refer to the contents of the “Alarm Outputs” for detail

1027H

Lower-limit alarm 2

Please refer to the contents of the “Alarm Outputs” for detail

1028H

Upper-limit alarm 3

Please refer to the contents of the “Alarm Outputs” for detail

1029H

Lower-limit alarm 3

Please refer to the contents of the “Alarm Outputs” for detail

102AH

Read LED status

b0 : Alm3, b1: Alm2, b2: F, b3: oC, b4: Alm1, b5: OUT2, b6: OUT1, b7: AT

102BH

Read pushbutton status

b0 : Set, b1 : Select, b2 : Up, b3 : Down. 0 is to push

102CH

Setting lock status

0 : Normal, 1 : All setting lock, 11 : Lock others than SV value

102DH

CT read value

Unit: 0.1A

102FH

Software version

V1.00 indicates 0x100

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Contents DTB Series Display, LED and Pushbuttons PrecautionOrdering Information DTB SeriesTemperature Sensor Type and Temperature Range SpecificationsOperation Signal feedback function is on Controller. Display when valveWhen valve feedback Scale = 2.8uA = 1.3mV for tuning output valueKey simultaneously, the Lock status can be released Dual Loop Output Control Heating / Cooling ControlAlarm Type Alarm Output Operation Alarm OutputsEvent Inputs Function Current Transformer CT FunctionPID Program Control Ramp/Soak Program Control PID ControlRS-485 Communication Hysteresis setting value of the 2ndPattern 0 time is set to 2080H~2087H 20BFHPanel Cutout and Terminals Identification Terminals IdentificationDTB4848 DTB4824 External DimensionsDTB4896 DTB9696CT Wiring Method if CT function is selected Error Acknowledge and DisplayMounting Mounting Method

DTB Series specifications

B&B Electronics, a well-regarded player in the field of industrial communication technologies, has made a significant impact with its DTB Series of data transport bridges. Designed for robust data transmission, these devices address the needs of industries that require reliable and efficient communication solutions.

One of the standout features of the DTB Series is its capability to handle multiple communication protocols. This versatility allows users to connect devices operating under different standards without the need for multiple converters, simplifying integration within existing systems. Each model in the series supports various serial communication standards, including RS-232, RS-422, and RS-485, offering the flexibility to cater to a wide range of applications.

The DTB devices leverage advanced technologies to ensure high-speed data transmission. With support for data rates up to 115.2 kbps, they enable rapid communication across significant distances. This is particularly beneficial in settings where timely data exchange is critical, such as in manufacturing floors or utility management systems. Moreover, the devices are engineered to maintain data integrity, employing robust error-checking mechanisms and reliable power supply options.

Characteristically, the DTB Series is built for durability and longevity in demanding environments. The rugged housing of these devices provides protection against dust, moisture, and electromagnetic interference, which are common issues faced in industrial settings. This durability ensures that the DTB devices can perform consistently even in harsh conditions.

Additional features include LED indicators for monitoring power and communication status, which enhances user control and troubleshooting capabilities. With an easy-to-install design, the DTB Series allows for seamless integration into existing systems, reducing the time and effort required for setup.

Furthermore, the DTB Series embodies adaptive technology, supporting automatic configuration and a variety of mounting options, including DIN rail and panel mount installations, providing users with flexibility in deployment.

In conclusion, B&B Electronics' DTB Series stands out as a highly reliable solution for industrial data communication. Its combination of protocol versatility, high-speed performance, rugged construction, and user-friendly design makes it an ideal choice for industries seeking to enhance their communication infrastructure. Whether in factory automation, transportation, or utility management, the DTB Series provides the necessary tools to facilitate seamless and efficient data transport.
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