User manual VAISALA GML20 LONWORKS INSTALLATION

[. . . ] GML20 LonWorks® module MOUNTING AND INSTALLATION The GML20 LonWorks® interface module enables communication between a LonWorks® network and GM20 series transmitters over a twisted pair. [. . . ] Note that as all NDIR transmitters consume power, an additional power supply is always needed. Check that the nominal 24 V supply is connected between terminals + and - on the transmitter's mother board. Analogue output signals can be used simultaneously with the LonWorks® module. Install the module on the 2- and 5-pin connectors as indicated in Figure 2. 3. Figure 1: Connecting the wires to the GML20 module Figure 2: Installing the GML20 module 1 2007-07-10 GML20 LonWorks® module 4. When configurating the transmitter, press the blue service button (marked SERVICE) on the GML20 module and the transmitter sends its service pin message to the configuration unit. During normal operation, the LED indicates the following: dark lit = the transmitter configuration and operation are in order = there is something wrong with the transmitter blinking = the transmitter has not been configured (delivered in this mode) 5. Close the transmitter cover. TECHNICAL DATA LonWorks® interoperable twisted pair free topology network type TP/FT at 78 kbs additional two wires needed for powering the transmitter can be connected to both powered and non-powered networks external interface (. xif) file available on request (part no. [. . . ] Exceptional operating conditions, damage due to careless handling and misapplication will void the guarantee. 2007-07-10 2 [. . . ]