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Vaisala DMP248 - Dual Loop Operation

Vaisala DMP248
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APPENDIX 3_________________________________________________________________________
110____________________________________________________________________M210492EN-A
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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