Teledyne 6600 manual Command Description, Parameter Setting

2 Installation Model 6600

RD	2	Received Data
TD	3	Transmitted Data
DTR	4	Data Terminal Ready
COM	5	Common
DSR	6	Data Set Ready
RTS	7	Request to Send
CTS	8	Clear to Send
RI	9	Ring Indicator

The data sent is status information, in digital form, updated every two seconds. Status is reported in the following order:

•The concentration in percent

•The range is use (HI< MED< LO)

•The span of the range 0-100%, etc)

•Which alarm - if any - are disabled (AL-x DISABLED)

•Which alarms - if any - are tripped (AL-x ON)

Each status output is followed by a carriage return and line feed.

Three input functions using RS-232 have been implemented to date. They are described in Table 2-4.

	Table 2-4: Commands via RS-232 Input
Command	Description
as<enter>	Immediately starts an autospan.
az<enter>	Immediately starts an autozero.
st<enter>	Toggling input. Stops/Starts any status message output
	from the RS-232, Until st<enter> is sent again.

The RS-232 protocol allows some flexibility in its implementation. Table 2-5 lists certain RS-232 values that are required by the 6000B/6600.

	Table 2-5: Required RS-232 Options
	Parameter	Setting
	Baud	2400
	Byte	8 bits
	Parity	none
	Stop Bits	1
	Message Interval	2 seconds
2-8: Part I	Teledyne Analytical Instruments