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SEFELEC1500M Instructions
139
V1.06
14.5.9.
MALFUNCTION
In the event the Ethernet connection does not operate as described in this manual, check
the following points:
Absence of a reaction of the device when sending commands:
The devices in the SEFELEC series have several possible types of interfaces, check
in the configuration menu that the ETHERNET mode was selected on the INTER-
FACE line.
Check if your device's IP address and that of your control device (PC) are in the
same network. (Modify the network mask if necessary)
The end of message character must be the LF character (hexadecimal: 0A, decimal:
10). If this character is not sent, the SEFELEC1500M device does not process the
command received.
Check that the
LF
character is indeed added to the characters of the command sent.
The first command that must be sent is the REM command, the latter results in the
display of the icon of the links of a chain on the left hand side corner of the LCD
screen, the device is then ready to process the other commands.
Warning: the first REM command must not wait for the Xon character before it is
sent.
The device switches to REMOTE then seems to be blocked
Before sending another command, it is imperative to wait for the device in the SE-
FELEC series to report that it is available by the sending of the Xon character. If a
code arrives during the processing of the preceding code, it can cause incoherent
operation of the device or block it.