Connections For Measuring Sensor And Analog Output; Instruction Syntax And Format; Overview Of The Namur-Instuctions - IKA IKAMAG RET control visc Mode D'emploi

RTS (pin7) LOW
RTS (pin7) HIGH (negative tension):
CTS (pin8) LOW
CTS (pin8) HIGH (negative tension):
- Access method:
Connection for Measuring Sensor
Connection
Pt 100
Ill. 2
ϑ
Pt 100
RET cv 0498
(positive tension): PC may send
PC may not send
(positive tension): PC recipient
PC not recipient
Data communication from laboratory
instrument to processor is only possi-
ble on demand of the processor
and Analog Output
analog output
mains connection
and RS 232 C
analog GnD
RS232_GnD
speed 1V
5
^
1/min
= 1000
10
3
1
viscosity trend 15
4 100% = 3,5V
5
2
-100% = 1,5V

Instruction Syntax and Format

Here applies the following:
- The instructions are generally sent from the processor (master) to
the laboratory instrument (slave).
- The laboratory instrument exclusively sends on demand of the pro-
cessor. Even error codes cannot be spontaneously communicated
from the laboratory instrument to the processor (automatic system)
- The instructions are transmitted in capital letters.
- Instructions and parameters as well as subsequent parameters are
separated by at least o n e blank.
- Each individual instruction including parameters and data as well as
each reply are terminated with CR LF (Code: hex 0x0D and 0x0A)
and have a maximum lenght of 80 characters.
- The decimal separator in a floating point number is the point.
The above statements largely correspond with the recommendati-
ons of the NAMUR-Association. (NAMUR-recommendations for the
design of electric plug connections for the analog and digital signal
transmission to laboratory - MSR individual units. Rev. 1.1)
Overview of the NAMUR-Instructions
(witch the IKA-magnetic stirrer understands)
Abbreviations:
X,y=
TxD
RxD
n=
RTS
1
X=1
6
X=2
11
X=3
CTS
X=4
temperature
^
X=5
1V = 100 °C
(Code: hex 0x20)
(Code: hex 0x2E)
numbering parameter (integer number)
value of variable, floating point number
Pt 100 temperature
heating plate temperature
safety temperature
speed
viscosity trend
23