Table of Contents
Advertisement
A.3
Analog Interfaces With Digital Data Transfer
For analog load control from EKG unit and automatic, digital data communication with EKG unit
•
ANALOG: Pin configuration (view of connector):
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Enclosure
•
Voltages:
Analog
set load (input)
set load (output)
•
PORT 1 or PORT 3: Pin configuration, digital (view of connector):
PORT 1
Pin 1
Pin 2
Receive (Input)
Pin 3
Transmit (Output)
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8 remote start EKG unit
Pin 9
•
Transmission Protocol:
With the Analog setting, the system responds to a digital request by sending a standardized data
record. The string consists of 54 alphanumeric characters as well as of Carriage Return and Line
Feed as end-of-line characters. Via the RS232 interface, only the command S <CR> is accepted, all
other characters are ignored. The exercise test cannot be terminated by sending a command to the
interface. BP values will read "000" in the data string to indicate erroneous BP measurements.
The command S <CR> initiates a BP measurement. Upon termination of the BP measurement, the
ergometer outputs the data record.
No.xx, SYST:xxx mmHg, DIAST: xxx mmHg, Pulse: xxx/min <CR> <LF>
where No.xxis used to identify the consecutive BP measurements (No.01, No.02, ...).
- 78 -
Appendix A: Interfaces
External load (input)
-
Remote start EKG unit (output)
-
Load output
-
-
GND
minimum
-
-
GND
-
-
-
eBike, eBike L, eBike EL
maximum
0 V
+10 V DC
0 V
+10 V DC
Pin 1
Pin 2
PIN 3
Pin 4
Pin 5
ANALOG
resolution
adjustable
adjustable
PORT 3
TxD
GND
-
-
RxD
2018112-003 Rev J
Hide quick links:
Advertisement
Table of Contents
