Vaisala HMP230 - Manual (Page 112)

HMP230 SERIES
Appendix 3: RS 485/422 serial port module
M210225en-A
106
INSTALLING AND USING THE RS 485/422 SERIAL PORT MODULE
1. INSTALLATION ...................................................................................................... 107
2. OPERATION ........................................................................................................... 108
3. NETWORK CONFIGURATION ............................................................................... 110
Single loop operation............................................................................................ 110
Dual loop operation............................................................................................... 112
4. CHECKING THE SERIAL PORT NETWORK OPERATION .................................... 114
STOP mode............................................................................................................ 114
POLL mode ............................................................................................................ 115
RS 485 network settings ....................................................................................... 115
5. SPECIFICATIONS .................................................................................................. 116