500-003111-000
4-20
BEGIN SEQUENCE:
LOOPBACK SELF-TEST
CLEAR "OUTPUT ON-LINE" CONTROL BIT
SELECT "ANALOG OUTPUT 00" INPUT MODE
POINT TO OUTPUT CHANNEL 00
WRITE OUTPUT TEST VOLTAGE
TO OUTPUT CHANNEL
MIN
50
µ
s
DELAY
START/READ
ADC
COMPARE ADC
READING WITH OUTPUT
TEST VOLTAGE
COMPARE
WITHIN TEST
LIMITS?
SET "LOOPBACK
TEST" FAIL FLAG
LAST
DATA
?
END SEQUENCE
SELECT NEXT
OUTPUT DATA
YES
NO
NO
YES
Figure 4.8.1-1. Program Flowchart - Loopback Self-Test
M3111/F4.8.1-1
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