#
Initially the channel will read approximately –8000 ppm when not touching the flying lead onto the
ruler.
•
touch the flying lead onto the 0 marking, and the reading will be around –300 ppm.
•
touch the lead onto the 100 marking, and the reading will be around 300 ppm.
•
touch the lead onto the 50 marking, and the reading will be around 0 ppm.
The readings can be scaled to the 0 to 100 range of the ruler by the span. (Prog9.dxc)
BEGIN”Ruler_2”
S1=0,100,-300,300 "Units"
RA1S 6BGI(S1)
END
Touch the flying lead at various markings along the ruler and read the position.
The span can be set more accurately for your SSP by setting the lower and upper signal values to the
actual readings produced by your SSP when the 0 and 100 markings are touched respectively.
5.7
Serial Data Channel (Labelled Serial Sensor RS232)
The SSP provides a 9 pin D connector for the RS232 function of the serial data channel of the DT800.
This connector is configured the same as a COM port of a PC viz
•
pin 2 Receive
•
pin 3 Transmit
•
pin 7 RTS
•
pin 8
CTS
and so RS232 devices that can be connected to a PC can be connected to the SSP using the same
cable. The SSP does not provide any serial sensor simulation.
However the serial data channel could be demonstrated by connecting an RS232 serial dot matrix or
ticket printer to the SSP, or a PC running a terminal program such as DeTransfer or HyperTerminal,
and running the following program. (Prog10.dxc)
BEGIN”Serial_1”
‘Set serial channel baud rate to match printer or terminal
PS=9600,N,8,1,NOFC
RA10S
1SERIAL(RS232,”{DT800 Serial Sensor Port\\13\\10}”,W)
END
which will print the message every 10 seconds.
Page
12
Содержание DT800
Страница 1: ...DT800 Demonstration Sensor Simulation Panel Operating Instructions...
Страница 5: ...Fig 3 Fig 4 Closing the case Page 5...
Страница 6: ...Fig 5 Fig 6 Page 6...
Страница 7: ...Fig 7 Fig 8 Page 7...