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Operation method, Rs485 communication function – Yamato Scientific BB600 Low Constant Temperature Water Bath User Manual

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37

Operation Method

RS485 Communication Function

Other Parameters

Name

Identifier

Command

Setting Value

Key lock

LOC

R/W

00000:Key lock released
00001:Key lock

Operation
start/stop

RUN R/W

00000:Stop (*3)
00001:Start

Operation type
selection

RST R/W

00000:Fixed temperature operation selected (*3)

Remaining hour
monitor

_TI R

00000:Time-up (*1)
00001~09950:0 hours and a minute to 999 hours and 50
minutes

Output monitor

OM1

R

00000:First digit = Heater output

Second digit = Refrigerator output
Third digit = Main output
Fourth digit = Time-up or alarm output
Fifth digit = Overheat prevention output

Output state: 0 = Output OFF, 1 = Output ON

Error monitor 1

ER1

R

00000:First digit = Memory error

Second digit = Sensor error
Third digit = AT error
Fourth digit = Heater wire disconnection error
Fifth digit = SSR short error

Error state: 0 = No error exists., 1 = An error exists.

Error monitor 2

ER2

R

00000:First digit = Boil-dry error

Second digit = Overheating prevention 1 error
Third digit = Overheating prevention 2 error
Fourth digit

= Internal communication/Temperature input circuit
error

Fifth digit = Unused

*Error state: 0 = No error exists., 1 = An error exists.

Measured
temperature
monitor

PV1

R

(Example)
00100

= 100

°C (when the temperature sensor is a thermocouple

input)

01000

= 100.0

°C (when the temperature sensor is a platinum input)

HHHHH

= Measured temperature over-scale (input common)

LLLLL

= Measured temperature under-scale (input common)

*The measured temperature resolution of the platinum input is

ten times that of the thermocouple input.