Specifications

432E3110.fm/3
30 mars 2004
Power-monitoring units
Power Meter PM500
Installation and connection (cont.)
Modbus RS 485 module IO22 Alarm module
DB100645 DB100574
(1) Flip switches 1 and 2 in the direction of the arrow to insert a resistance of
120
Ω
. This resistance should be inserted when the PM500 is located at the end
of an RS 485 line.
(1) Volt free (external power supply).
IO11 Puls module IO02 2 Puls module
DB100573 DB100557
(1) Volt free (external power supply).
AO20 4-20 mA module
DB100575