FORM: PPS SERIES OWNERS MNUL
REV: 05-31-2012
APPR BY: MF
36
initially inactive. It can be activated at any time via RS232 by entering a time > 0, and
deactivated again by setting the time to 0.
It is always possible to query the current measured values for speed, incline, time,
distance and pulse, regardless of the current control status. The set commands are only
accepted when these are permitted in the current control mode. The only setting
command of the WOODWAY standard protocol which is also valid in the program
control status, external control status and pulse control status is the command
"STOP treadmill".
RS232 - Interface with WOODWAY Standard Set of Commands:
The control only needs the lines TxD and RxD. The RS232 control lines are bridged in
such a way that there should not be any problems in communicating with a PC running
under DOS or WINDOWS. Galvanic separation rules out the risk of any interference in
the PC from the treadmill. A crossed zero modem cable is required as used to connect
two PCs with normal standard pin configuration.
The interface is configured to the following parameters:
9600 Bd / 8 Bit / no parity / 1 Stopbit
On the software side, the interface is provided with a buffer of 256 bytes for both
transmitting and receiving. Transmission and reception take place interrupt- controlled.
A command is not interpreted until it is fully present in the buffer. The interpretation
proceeds with full control of the command format. Only correct commands are
executed. The interface responds to faults with 0Dh (multiple responses if necessary).
The interface is not blocked by incorrect commands, and the beginning of the next
correct command is also recognized. A valid command refreshes the TIME-OUT if this
mode is activated. Excessive values for individual parameters are reduced to the
maximum tolerable levels without producing fault messages.
The buffer configuration means that several commands can be transmitted to the
interface in direct succession. They can be executed in sequence at the maximum
possible speed (normal interpretation times are in the ms range). However, the PC
programmer is responsible for preventing overflow of the transmission or reception
buffer. This is vital to ensure that no overflows occur during successive transmission of
several commands which do not wait for a response (add the telegram lengths of
command and response, the total must always be less than 256).
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Страница 48: ...FORM PPS SERIES OWNERS MNUL REV 05 31 2012 APPR BY MF 48 WARRANTY INFORMATION Chapter 6...
Страница 55: ...FORM PPS SERIES OWNERS MNUL REV 05 31 2012 APPR BY MF 55 966 3929 800 WOODWAY...
