Operation Manual
Version: 12/01
63
er900L Operation Manual
Art-Nr: 475.043
Ergometer
Type er900L
Appendix A: Interfaces
Transmission Protocol :
String response to the „M“ command:
NR.xx,SYST:xxxmmHg,DIAST:xxxmmHg,Puls:xxx/min
Remark:
W xxx <CR>
command value(e.g. load value) carriage return (end of line)
Command from PC Response Description
(ECG) from er900
X <CR> --- Preamble for transmission of the load target value. The
load value must follow this command in a three digit
format (one digit per character).
Target load as three individual characters. The interval
between characters should be less than <200ms.
x-x-x <CR> x-x-x-<CR><LF (if the time between characters exceeds 300ms than
the command will be not accepted). The characters will
be echoed back to the sending device.
Start of quiescent blood pressure measurement.
S <CR> --- At the end of blood the pressure measurement , the
preset load ( previous „X“ command) will be applied.
Start of ergometry with load preset (previous „X“
s <CR> --- command). Each load increment requires another „s“
command.
Request of current load.
W <CR> xxx <CR><LF> Output of current load in W.
Request of current rpm value
D <CR> n xxx <CR> Output of current rpm value in 1/min.
Request of current heart rate
H <CR> H xxx <CR> Output of current heart rate in 1/min.
Request of current measurement results.
M <CR> see „string“ The load step number will be incremented with each „s“
or „S“ command received.
First time issued = terminate load phase and
F <CR> --- change-over to recovery phase
2nd time issued = end of complete ergometry.
Identification string of the ergometer. The string contains the
device type 0900-, ECG interface type set (interface protocol) -
P03 - and Software version number - VXXX-.
Y oder I <CR> 0900P03VXXX When „F“ was first sent to terminate the load phase,
<CR> the "I" command can also be used to terminate the complete
ergometry..
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