Vaisala DMP248, Operating Manual

Page: 114 / 141

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NOTE The transmitter outputs no prompt (>) after the SMODE POLL
command and it only reacts to commands which include its address.
•
Check that the transmitter responds to its address:
>send 22
Td= -47.4 'C T= 29.1 'C
•
Disconnect the terminal.
•
Check that the jumpers in connector X4 are in the right
places.
X4
X4
X1 X2
•
Remount the RS 485/422 serial module.
•
Close the cover.
•
When all transmitters on the network have been
configured, switch them off.
Dual loop operation
The following procedure must be repeated with all transmitters.
•
Open the transmitter cover.
•
Pull out the RS 485/422 serial port module, if it is already
mounted.
•
Set the serial port of the terminal to 4800 baud, even
parity, seven data bits and one stop bit, full duplex (4800 E 7 1 FDX).
•
The serial settings of the transmitter must also be 4800 E 7
1 FDX and the transmitter must be in STOP mode. If these factory
settings have been changed, they must be changed back. Connect the
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