Trackmaster FVX325, Field Service Manual

Page: 120 / 205

TRACKMASTER
August, 2006 FVX, TMX Series Service Manual
9-5
COMMUNICATION NOTES
Note 1 - The Communication Disconnect Stop Enable mode is a safety feature that stops the
belt when a command is not received from the host within 0.5 seconds.
Note 2 - The Communication Disconnect Stop Disable mode allows the belt to run without
sustained communication at 0.5 second intervals.
Note 3 - All speed formats are 4 digit ASCII characters in tenths of distance per hour. For
instance, to set the speed to 4.0 mph the set speed command would be followed by 0040.
Note 4 - All elevation formats are 4 digit ASCII characters in tenths of percent inclination.
The last digit must be ASCII 0 or 5. For instance, to set the elevation to 5%, the set elevation
command would be followed by 0050. An attempt to send a value that is not in a half percent
increment (e.g. 4.3%) will result in a data out of range reply.
Note 5 - These Input commands sent by the host are accepted by the treadmill, but not
implemented functionally. For instance, a command to set the weight to 150 pounds will be
accepted but will not be used. Further queries of the weight will return 0.
Note 6 - The toggle transmit acknowledge data flag is initially cleared. When set by sending
the toggle transmit acknowledge command, the output response will always be followed by
the input string received from the host. Sending this command when the flag is set will result
in it being cleared again.
Note 7 - These Input Command Responses are not functional and will always consist of zero
valued data.
Note 8 - These Status commands sent by the host are accepted by the treadmill, but not
implemented functionally. For instance, a command to query the current calories will be
accepted, but a value of zero will always be returned.
Note 9 - These Status Command Responses are not functional and will always consist of zero
valued data.
Note 10 - To emergency stop switch will remove power from the treadmill control board to
guarantee a stop condition. When this occurs and the emergency stop button is subsequently
released, the control will be in the same state as when the unit is powered up using the main
power switch. Therefore, it is necessary in either powerup state to guard against inadvertent
restarts if the host doesn’t recognize the situation and is continuously sending out belt start
commands. The method used to guard against this situation is to reject any start command
received within 3 seconds of powering up and finding the zero elevation position. If a start
command is ejected, all further start commands will also be rejected until the unit is reset or
a stop command is received or communication ceases for 20 seconds.