Labconco PURICARE Procedure Station Models 34812xx - Manual (Page 186)

Page 186 of 197
Using the RS-232 Receptacle
The operation of the Logic Biological Safety Cabinet (BSC) can be monitored using a
computer connected to the RS232 receptacle located on the top electrical box of the
Logic. The computer monitors the Logic’s operation, but cannot control the operation of
the Logic.
Computer Connection for Computer Interface
Check your computer to see which type of serial port is provided. Use one of the two
connecting cables listed below:
1. Computers with a 25-pin D-sub male serial connector should use Connect Cable,
Labconco part number 7537801, to connect a computer to the Logic.
2. Computers with a 9-pin D-sub male serial connector should use Connect Cable,
Labconco part number 7537800, to connect a computer to the Logic.
The purpose of the RS232 interface is to send data to a data logging computer to
monitor the state and activity of the Logic. This data is half duplex data. The data
properties are as follows:
1. Data Rate 2400 Baud
2. 8 bit word length
3. 1 Start bit, 1 Stop bit
4. No parity is transmitted
5. Standard ASCII character set
The time between data transmissions may be varied by the user to occur at 1, 10, 30,
60, second intervals. Access the “Cabinet Setup” selection from the Main Menu, and
then select “Data Output Rate’ to select the rate of data output from the Logic.
The format of the transmitted message with typical values is as follows: