Ahlborn ALMEMO 2490-2 Operating Instructions Manual page 31

Enter <ctrl Q> for XON, if the device is in the XOFF status.
Check the programming by means of ´P15´ (see Manual 6.2.3).
Test the transmit line only by selecting a measuring point using com-
mand ´Mxx´ and check in the display.
Error: Data transmission in the network does not function.
Remedy: Check to ensure that all devices are set to different addresses.
Address all devices individually via the terminal using command ´Gxy
´.
Addressed device is OK if at least ´y CR LF´ is returned as echo.
If transmission is still not possible, unplug the networked devices.
Check all devices individually on the data cable to the computer;
(see above).
Check the wiring for short-circuit or crossed wires.
Are all network distributors supplied with power ?
Network the devices again one at a time and check successively;
(see above).
If, after performing the above-listed checks and remedial steps, the device still
fails to behave as described in the operating instructions, it must be returned to
our factory in Holzkirchen (see 14.4), accompanied by an explanatory note, er-
ror description, and if available test printouts. With the AMR-Control software
you can print out screen-shots with the relevant programming and save and /
or print out a comprehensive ´Function test´ in the device list or terminal opera-
tion.
Trouble-shooting
ALMEMO ® 2490 31