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the controller system to send very long, complex strings of
commands and get an answer back to know that all those
commands were executed properly.
RS-232 Serial Control
You must set the external RS-232 control system serial port
to match the data communication speed and format of the
Maestro M2e. If these settings are not correct, the Maestro
M2e will not respond to the commands.
Maestro M2e communication parameters:
Baud Rate:
38,400
Start Bit:
1
Data Bits:
8
Stop Bit:
1
Parity:
None
Flow Control:
None
Cable Wiring
The cable wiring to connect the Maestro M2e to your con-
trol system will depend on the RS-232 output connection
on the controller. Make certain that you wire the Transmit
Data output on the serial controller to the Receive Data on
the Maestro M2e and vice versa on the Receive Data line on
the controller system. Connect the signal grounds on the
control system and the Maestro M2e together. The RS-232
connection on the Maestro M2e is a DB-9 Male wired as fol-
lows:
Pin 2 Receive Data (RXD)
Pin 3 Transmit Date (TXD)
Pin 5 Ground
To connect the Maestro M2e to a standard PC serial comm
port; wire the cable in a ‘null modem’ arrangement using
the appropriate serial cable.
Automation Integration
RS-232 Null Modem Arrangement
Содержание Maestro M2e
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