
5-4 Controller Cards
UM4.6:CS6003 Original — December 1991
Note
The SCAN ERROR indicator may be lit while the
calibrator is in the CAL HIGH mode. This is a
normal condition.
Step 8: Observe the CONTROLLER DO indicators. CONTROLLER
DO indicators 1 thru 4 blink on and off as the discrete outputs
are subjected to a binary counting test. If a discrete I/O card
is also being tested, CONTROLLER DO indicators 5 thru 8
are included in the binary counting test. If some or all of the
CONTROLLER DO indicators fail to light, the card or cards
require repair.
Step 9: Ensure all of the switches labeled MUX DI/DO OR
CONTROLLER DI are OFF.
Step 10: Press the SCAN switch. The NONE ACTIVE indicator of the
DI STATUS indicators lights. If the NONE ACTIVE indicator
does not light, or if another of the DI STATUS indicators lights,
the MPU card or the discrete I/O card requires repair.
Step 11: Press Switch 1 of the calibrator switches labeled MUX DI/DO
OR CONTROLLER DI. The 1 ACTIVE indicator of the DI
STATUS indicators lights. If the 1 ACTIVE indicator of the DI
STATUS does not light. The MPU card or the discrete I/O card
requires repair.
Step 12: Press Switch 2 of the calibrator switches labeled MUX DI/DO
OR CONTROLLER DI. The 1 ACTIVE indicator of the DI
STATUS indicators goes out and the > 1 ACTIVE indicator
lights. If the > 1 ACTIVE indicator fails to light, or if another of
the DI STATUS indicators lights, the MPU card or the discrete
I/O card requires repair.
Step 13: Press both of the MUX DI/DO OR CONTROLLER DI switches
again to turn them off. The > 1 ACTIVE indicator of the DI
STATUS indicators goes out and the NONE ACTIVE indicator
lights. If the > 1 ACTIVE indicator fails to go out or the NONE
ACTIVE indicator fails to light, the MPU card or the discrete
I/O card requires repair.
Step 14: Repeat Step 11 for MUX DI/DO OR CONTROLLER DI
switches 3 and 4 to test discrete inputs 3 and 4. If a discrete
I/O card is present, repeat Step 11 for MUX DI/DO OR
CONTROLLER DI switches 5 thru 8 to test discrete inputs 5
thru 8 (be sure to turn each switch OFF before turning the
next switch ON).
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