Vaisala HMP260 - Manual (Page 107)

HMP260 SERIES
HMP260-U017en-1.5 Appendix 4: Digital current loop module
Dual loop wiring
• Set the address of the transmitter, it can be any number between 1 and 99. In
this example the address is 22:
>addr 22
Address : 22
• Set the serial bus settings according to your system. This setting will become
valid after next RESET or power off:
>seri 2400 e 7 1 f
2400 E 7 1 FDX
• Switch echo on:
>echo on
ECHO : ON
>
• Change the serial output mode into POLL:
>smode poll
Serial mode : POLL
NOTE 1
The SMODE command must be given last.
NOTE 2
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
RH= 24.4 %RH T= 29.1 'C
• Disconnect the terminal.
• Remount the digital current loop module.
• Close the cover.
• Repeat this setting procedure with each transmitter
• When all transmitters on the network have been configured, switch them off.