Dwyer 8B User Manual

Page 24

Page 24

Communication Register List

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

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

Communication protocol: Modus (ASCII or RTU).

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.

Address and Content of Data Register:

Address Content

Explanation

1000H

Process value (PV)

Measuring unit is 0.1, updated one time in 0.4 second. The
following reading value display indicates error occurs:
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 program control

1006H

Heating/Cooling control selection

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

1007H

1st group of Heating/Cooling control cycle

0~99, 0:0.5 sec

1008H

2nd group of Heating/Cooling control cycle

0~99, 0:0.5 sec

1009H

PB Proportional band

0.1 ~ 999.9

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

100EH

The setting of COEF when Dual Loop

0.01 ~ 99.99

output control are used

100FH

The setting of Dead band when Dual Loop

-999 ~ 9999

output control are used

1010H

Hysteresis setting value of the 1st

0 ~ 9999

output group

1011H

Hysteresis setting value of the 2nd

0 ~ 9999

output group

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

Unit is 0.1%, write operation is valid under manual tuning

mode only.

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

1016H

Temperature regulation value

-999~+999, unit: 0.1

1017H

Analog decimal setting

0 ~ 3

101CH

PID parameter selection

0~4

101DH

SV value corresponded to PID value

Only valid within available range, unit: 0.1 scale

1020H

Alarm 1 type