Vaisala HMP260 User Manual
Page 109
HMP260 SERIES
HMP260-U017en-1.5
Appendix 4: Digital current loop module
POLL mode
If a transmitter has been set to POLL mode, it will respond only to commands sent with
its address:
send 22
RH= 24.4 %RH T= 29.1 'C
Addresses from 1 to 99 can be used. According to the 20 mA current loop standard
current flows with no transmission on line. A maximum of 6 devices can be connected
on same single loop line, but the number can be raised to 9 by using dual loop wiring.
Current loop settings
HMP260 settings
single pair
dual pair
Full duplex/half duplex
HDX
FDX
Echo on/off
OFF
ON
Terminal settings
Line feed after carriage return
yes
no
HDX/FDX
FDX
FDX
When terminal is set to general
will have two line feeds where also the HMP260 transmitters send line feed.
- Calibration of Digital Transmitters with HMI41 (36 pages)
- Calibration of Series HMDW2030 and HMP130 Transmitter with HMI41 (14 pages)
- Calibration of Series HMDW6070 and HMP140 Transmitter with HMI41 (30 pages)
- HM34 (30 pages)
- HM40 (47 pages)
- HM44 (52 pages)
- HM70 (83 pages)
- HMD40 (1 page)
- HMD60 (4 pages)
- HMD70 (18 pages)
- HMDW110 (62 pages)
- HMDW80 (51 pages)
- HMI41 (74 pages)
- HMP41 (72 pages)
- HMK15 (39 pages)
- HMM100 (71 pages)
- HMM105 (23 pages)
- HMM211 (42 pages)
- HMM212 (36 pages)
- HMM213 (52 pages)
- HMP140 (28 pages)
- HMP155 (84 pages)
- HMP228 (115 pages)
- HMP230 (163 pages)
- HMP240 (130 pages)
- HMP60 (71 pages)
- HMT100 (52 pages)
- HMT120 (87 pages)
- HMT130 (95 pages)
- HMT140 (76 pages)
- HMT310 (88 pages)
- HMT310 (105 pages)
- HMT330 (209 pages)
- HMT360 (97 pages)
- HMT360 (63 pages)
- HMT360N (110 pages)
- HMW40 (1 page)
- HMW90 (110 pages)
- SHM40 (68 pages)
- RDP100 (14 pages)