Instruction Manual

HMP230 SERIES
M210225en-B Appendix 4: Digital current loop module
123
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 2400e71f
2400E71FDX
•
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.