Flintec MCS-08 - Manual (Page 50)

MCS-08 Technical Manual, Rev. 1.04 December 2012 Page 50 of 52
14. D
IAGNOSTICS
In this test menu serial interface tests (RC-232C and/or RS-485) and load cell signal analog to digital
conversion and processing tests can be initiated.
For entering the diagnostics mode, press the setup switch before power on and release the switch after the
module is powered on.
A gateway module will go into the RS-232C RXD test mode which is indicated by lighted Pwr LED and flashed
Err LED as shown below. The status of LEDs on the front panel indicate the test steps and the test result as
described below. You can go to the next test by pressing the setup switch.
Test
LED Status
Description
Pwr Lnk Err
RS-232C RxD
(for gateway modules only) Pwr LED gets off 0.3 s after receiving any data. Press
the setup switch to go to the next test step.
RS-232C TxD
(for gateway modules only)
„A‟ to „Z‟ characters are sent sequentially in 0.8 s
intervals. If the same data is received, Pwr LED gets off
for 0.3 s. Press the setup switch to go to the next test
step.
RS-485 RD
(for MCS-08MB only) Pwr LED gets off for 0.3 s after receiving any data.
Press the setup switch to go to the next step.
RS-485 TD
(for MCS-08MB only) „A‟ to „Z‟ characters are sent sequentially in 0.8 s
intervals. Press the setup switch to go to the next step.
Load cell signal
(for MCS-08AD only)
LED gets off while the load cell signal increases.
Press the setup switch to go to the next step.
LED gets off while the load cell signal decreases.
Off On Flash Off for 0.3 second
Table 15.1 – Diagnostics
If you short circuit the RXD and TXD pins on the RS-232C port and start the TxD test, the receiving data is
shown by the Pwr LED.
Press the setup switch for 5 seconds to exit the diagnostic mode and to return to normal operation mode.