rs232 sErIAl InTErfAcE
The TU-20D may send data logging information to a compatible computer by connecting the unit and
the PC via an RS232 cable, and installing the “Thermsoft” software. Contact your supplier for details.
The RS232 cable must be fitted to both the unit and the PC before either unit is powered up, otherwise,
data integrity cannot be guaranteed. Once the cable is fitted, it does not matter which unit is powered
up first.
The following tables indicate the cable specifications for a 9-way PC serial port:
Thermoregulator
pc
9-way female D type
9-way female D type
pin
signal
pin
Case
F.GND
Case
3
TxD
3
2
RxD
2
7
RTS
7
8
CTS
8
6
DSR
6
1
CD
1
4
DTR
4
5
S.GND
5
sEnDIng DATA TO ThE pc
The procedure for sending data to the PC is described in the “help” instructions of the software. The PC
must be properly connected by the RS232 cable and running “Thermsoft” to accept or display data.
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RS232 Connection
