User Guide
Landcal Blackbody Source
Type P1600B2
Page 13
5.5 Using the RS232C Serial Interface Port
The source is supplied with a sub-miniature D-socket connected to the controller
communication module to give RS232 serial communication. RS232 is suitable
for direct connection to a personal computer (PC), using a cable configuration as
shown below. The linked pins at the computer end are recommended, but may
not be necessary.
The required cable is a 9-pin to connect to the furnace, and either a 9-pin or 25-
pin to connect to the computer.
RS232 Cable: Furnace to PC connections
Furnace end of cable - female
Computer end of cable - male
9-pin
9-pin
(25-pin)
Rx 3
3
(2)
Tx
Tx 2
2
(3)
Rx
Com 5
5
(7)
Com
7,8
(4,5)
Link together
1,4,6
(6,8,20)
Link together
The source is shipped with the RS232C communications protocol set to
MODBUS, with the baud rate set to 9600 and no delay. The communication
address is set to 1.
The source must only be connected and used with a PC by a person who
understands how the serial communications function operates. If further
information is required, either contact your local Eurotherm agent and request
a copy of the Series 3000 Communication handbook, or consult the Eurotherm
website.
