The 3500/92 communication gateway module is suitable for the 3500 monitoring system and is an integral part of the system
Regarding the fault diagnosis of the 3500 frame, the inspection steps are as follows:
Check the LED status:
According to the upper and lower limits of the input voltage range set for each channel, the 3500 monitoring system continuously monitors the status of the field wiring. If the input exceeds these limits, the OK lamp will turn off and the BYPASS lamp will light.
The first step in 3500 frame fault diagnosis is to check the status LED on the front panel of the monitor. The LED lights show the status of the monitor as follows:
OK: The I / O modules of the monitor are operating normally;
TX / RX: flashing all the time, the frequency is the same as data receiving and sending;
Bypass: indicates that some functions of the monitor are temporarily suppressed.
The 3500 configuration software does not allow improper configuration and use of the monitor. Then, the following error conditions may occur:
1) The signal range or OK limit is set incorrectly;
2), wrong or useless setting value adjustment;
3) The sensor setting is wrong.
Some devices that require dynamic configuration, such as cylinder thermal expansion or valve position monitors, must be configured in the required order.