Specifications

Serial lnterface
1
18. RS232C lnterface
The following circulator functions can be controlled by a
computer via the interfaces:
9 6 Setting the desired set temperature, the upper and
lower limit temperatures and correction factor is pos-
sible;
the actual temperature can be read off;
the circulator can be reset, started or stopped;
any fault messages can also be displayed.
The
RS232C interface uses separate lines for sending and
receiving data.
18.1 Connecting to a computer with RS232C interface
The pin assignment required when connecting the cir-
culator to a computer via a
9-pin socket is as follows:
Cable (9-pin to 9-pin)
3 1
TxD -
)1 3
7 1
RTS -
CTS
81 )I 8 81_
DSR
1 Computer 1
13
+ RxD(Received Data)
12
+ TxD(Transmitted Data)
17
CTS(Clear to Send)
18
* RTS(Request to Send)
I
I Circulator
The pin assignment required when connecting via a 25-pin
socket is shown overleaf.