4)-3. CH2 Check
Checking
The procedure for checking, display and the method of exiting the
programs are the same as for the CH1 check.
4)-4. CH3 Check
Checking
The procedure for checking, display and the method of exiting the
program are the same as for the CH1 check.
4)-5. CH4 Check
Checking
The procedure for checking, display and the method of exiting the
program are the same as for the CH1 check.
4)-6. CH5 Check
Checking
The procedure for checking, display and the mothod of exiting the
programs are the same as for the CH1 check.
4)-7. CH6 Check
Checking
The procedure for checking, display and the method of exiting the
programs are the same as for the CH1 check.
4)-8. CH7 Check
Checking
The procedure for checking, display and the method of exiting the
programs are the same as for the CH1 check.
4)-9. CH8 Check
For checking CH8, the following loop-back connector is used.
Checking
The following checks are performed.
i. Control signal check
ER8 RS8 DR8 Ci8 CD8 CS8
OFF OFF OFF OFF OFF OFF
OFF ON OFF
ON
ON OFF ON
OFF
ON ON ON
ON
The program performs the read checks of the above inputs.
During the read check, ER and RS are changed over in the above
order, checking the logic of DR, CI, CD and CS.
If the logic is different from those listed in the table, the error
message appears.
PATTERN 1
ER8 RS8 CI8 CD8
OFF ON OFF OFF
ON OFF OFF OFF
ON ON OFF OFF
"No Connect" is displayed on the next line of PASS!!.
PATTERN 2
ER8 RS8 CI8 CD8
OFF ON OFF OFF
ON OFF ON OFF
ON ON ON OFF
"CI Connect is displayed on the next line of PASS!!
PATTERN 3
ER8 RS8 CI8 CD8
OFF ON OFF OFF
ON OFF OFF ON
ON ON OFF ON
"CD Connect! is displayed on the next line of PASS!!
If the logic is different from those in PATTERN 1 - 3, the error
message appears.
"ON" means active low and "OFF" active high.
The above checks are repeated for four cycles.
ii. Data transfer check
As check data, loop back data transfer of 256 bytes of 00H - 0FFH
is performed, the baud rate is set for115200 bps.
Display
Details of the errors are printed on the journal.
ERROR
No.
ERROR print Details of ERROR
1 ER-DR : ERROR ER-DR LOOP ERROR
2 ER-CI : ERROR ER-CI LOOP ERROR
3 RS-CD : ERROR RS-CD LOOP ERROR
4 RS-CS : ERROR RS-CS LOOP ERROR
5
6
7
8 TXEMP : ERROR TXEMP is not set.
9 TXEMP INT : ERROR TXEMP interrupt does not
occur.
10 TXRDY : ERROR TXRDY is not set.
11 TXRDY INT : ERROR TXRDY interrupt does not
occur.
1pinRS
2pinER
3pinSD
4pinCI/CD
5pinGND
6pinRD
7pinDR
8pinCS
PASS!!(or ERROR!!)
RS232 CH8 Check
CD Connect(or CI
Connect, No Connect
)
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